RepairBro - A Metre Per Second Company

    RepairBro · A Metre Per Second Company · Hyderabad

    VW & Škoda DSG fault codes, explained.

    Hydraulic pressure, gear selection, clutch control, sensors and electrical faults across documented DQ200, DQ250, DQ380, DQ381 and DQ500 applications. Learn what a code means, why it appears, how it is investigated and what to do safely. RepairBro uses ODIS and VCDS.

    Search DSG fault codes ↓

    This is a source-linked reference, not an exhaustive manufacturer database. Fault-code meaning and dashboard wording can vary by model, year, control module and software. A code is a diagnostic clue—not proof that a particular part has failed or permission to keep driving.

    DSG fault-code guide

    Start with the code.
    Not a parts guess.

    A code is a diagnostic clue, not a diagnosis. The same base code can carry different context by controller and software; the complete scan details matter.

    86 source-linked entries covering pressure, sensors, clutch control, gear selection, valves, electrical supply and setup. Definitions remain controller-specific—not a claim to every DSG code ever made.

    Understand the fault before choosing the repair.

    Jump to code search
    Gearbox families and vehicle examples

    DQ200: Polo, Vento and Rapid; selected DSG engine variants of Virtus, Taigun, T-Roc, Slavia and Kushaq.

    DQ250: Earlier DSG variants of Laura, Octavia, Superb, Yeti, Jetta, Passat and Tiguan.

    DQ380: China-market examples include Golf GTI and Magotan; no blanket India-model match. Confirm the gearbox code.

    DQ381: Selected newer, higher-torque variants of Tiguan, Kodiaq, Octavia, Superb and Karoq.

    DQ500: Selected high-torque Tiguan and Kodiaq AWD variants; other model years may use DQ381.

    Examples only. Fitment varies by year, engine, drivetrain and market. Confirm the actual gearbox code or VIN before applying a code definition or a price.

    How a DSG and its mechatronics actually work

    A DSG is a dual-clutch transmission. Two clutch and shaft paths allow the next ratio to be prepared while another is driving the car. Gear selection and clutch engagement are coordinated rather than operated by a conventional clutch pedal.

    The mechatronic combines electronic control with hydraulic valves, pressure regulation and sensor feedback. The controller requests an action, the hydraulic system carries it out, and speed, pressure, temperature or position readings tell it whether the result is plausible. If those readings disagree, the software may store a fault and restrict operation to protect the transmission.

    DQ200 uses dry friction clutches, but its mechatronic still uses a hydraulic circuit. DQ250 and the wet-clutch DQ380, DQ381 and DQ500 families use different oil, cooling, hardware and software arrangements. A fluid, part, wiring diagram or adaptation procedure for one is not automatically suitable for another.

    What the code, scan message and dashboard warning mean

    The dashboard may say 'Gearbox malfunction', flash the gear display or show an overheating warning. That message describes an operating condition; it is not the complete diagnostic trouble code. A gearbox scan is needed to read the underlying faults.

    A scan can show a base code such as P1735, an extended form such as P173500, a legacy numeric VAG identifier, a failure-type description and a manufacturer symptom identifier. Preserve all of them. A generic scanner can translate a manufacturer-specific code differently from ODIS or VCDS.

    Static/current and intermittent/sporadic faults are different. Frequency, mileage, supply voltage, temperature and freeze-frame conditions help establish when the fault happened. An intermittent entry is not automatically harmless, and a stored historic low-voltage entry is not automatically the present cause.

    This guide accepts base and extended P/U codes and the legacy numbers included in its entries. It explains the documented context; it cannot identify your exact hardware from a code alone.

    Why one problem can produce several fault codes

    A hydraulic leak can cause slow pressure build-up, excessive pump activity and failed clutch or gear selection. A weak electrical supply can interrupt feedback, valves and network communication at the same time. Replacing every component named in that fault set would miss the shared cause.

    Diagnosis therefore separates primary faults from consequential faults. The time of each entry, related codes, measured values and repair history help establish which fault happened first. Clutch slip, for example, can result from a pressure problem rather than only worn friction plates.

    Software and service history matter too. A published Volkswagen 0GC bulletin describes certain clutch and selector codes appearing with P0C29 after a specific service action on a restricted 2018 Golf R population. That is a useful example of why a code is not a parts order—not a universal update instruction for Indian vehicles.

    How ODIS / VCDS diagnosis works at a specialist workshop

    Start with vehicle identity, engine and gearbox codes, the driver's symptoms and a full vehicle scan—not just an engine-code reader. RepairBro provides dealer-level VAG diagnostic capability using ODIS and VCDS as an independent Volkswagen and Škoda specialist.

    The appropriate tests depend on the module and software. A technician first evaluates battery/supply conditions, current and related faults, then relevant live readings: requested versus actual pressure, input/output speeds, clutch feedback, temperatures, gear position or learned values.

    The next stage may involve electrical integrity checks, hydraulic assessment or a mechanical inspection. Not every test or setting is available on every controller. Any manufacturer bulletin or software action must be checked for the actual VIN, market and software level.

    Only after the cause is established should a repair be proposed. Supported coding and basic settings, where required, come after the repair and its prerequisites. Operation and the fault memory should then be checked under suitable, safe conditions.

    Safe DIY checks—and when to arrange recovery

    Safe owner actions: photograph the dashboard message while parked, note when it began, record whether drive/reverse was lost and save an existing scan without clearing it. Share the model, year, engine and previous repair or battery-work history. Look for visible fluid on the ground without going underneath the car.

    Stop in a safe location and arrange professional recovery for loss of drive, severe banging or unpredictable shifts, a stop/red warning, persistent overheating, smoke, a burning smell or a significant leak. Follow the owner's manual if it instructs an immediate stop; do not attempt to 'limp' through traffic to reach us.

    Tell the recovery operator the car has a DSG and whether it is AWD, whether neutral can be selected and whether the parking brake releases. A suitable flatbed is generally preferable, but wheel-lifting, towing and neutral-release requirements must follow that vehicle's manual. Do not force the selector or tow with locked driven wheels.

    Do not open the pressurised accumulator, remove mechatronics, probe live circuits, fit a larger fuse, add an unspecified oil, repeatedly clear faults or run random adaptations. Repeated restarting may temporarily restore drive without resolving the unsafe condition.

    Repair versus replacement—and what determines the estimate

    A confirmed external wiring or supply problem does not automatically require a mechatronic. A testable internal hydraulic, valve or electronic defect may be suitable for specialist repair. Severe damage, incompatible hardware or an unrepairable assembly may make replacement the appropriate option.

    Likewise, replacing the mechatronic cannot repair a damaged fork or worn clutch, and a fresh clutch cannot fix incorrect feedback or hydraulic pressure. The estimate depends on the gearbox identity, confirmed damage, required parts, fluids and setup—not the popularity of the code.

    RepairBro's published gearbox-family prices are estimates, not a fixed price for any fault-code entry. Confirm the fitted code and the written scope before approval. The stated mechatronics overhaul warranty is 1 year / 10,000 km; confirm the covered work and claim process in writing.

    View mechatronics pricing
    Maintenance: what helps and what will not cure a fault

    Follow the manufacturer schedule for the exact gearbox, model, year and market. There is no single oil-change interval or fill quantity suitable for every DSG. Use the specified fluid and replace filters where that gearbox's procedure requires them.

    Keep the battery and charging system healthy, deal with leaks and new warnings early, and keep a record of transmission work. Avoid holding the car on slopes with throttle and prolonged creeping that continually slips the clutch.

    An oil service may be appropriate maintenance but will not fix a cracked hydraulic casting, failed circuit, damaged selector or worn friction material. An adaptation reset cannot restore worn parts. Cleaning a sensor without addressing the source of metallic contamination can leave the underlying damage unresolved.

    Does this include every DSG code ever made?

    No static public list can honestly guarantee every fault on every DSG controller, software version and market. Some faults have manufacturer-specific symptom identifiers or no generic P-code equivalent. A broad reference is useful, but a complete diagnosis starts with the fitted vehicle's actual scan.

    This library includes source-linked hydraulic, sensor, gear, clutch, valve, electrical and setup entries. Gearbox filters indicate a documented application, not that a code cannot exist elsewhere. General electrical entries are retained in family results and labelled as cross-system.

    Where the controller and diagnostic tool support it, a technician can use the controller's supported-code information to establish its own fault coverage. If your code is not listed, share the original ODIS/VCDS text and controller identification; we will not guess a definition from the number.

    Ross-Tech: controller-supported codes
    Filter by family

    Showing 86 of 86 source-linked entries

    P189C / 00630001

    7-speed DSG · 0AM / DQ200

    Insufficient pressure build-up; Basic Settings may not complete.

    Function monitored

    Monitors hydraulic pressure build-up in the DQ200 mechatronic system.

    Hydraulic pressure moves the selector actuators and operates the clutches. The controller compares requested pressure with measured pressure and restricts operation when it cannot build, retain or plausibly measure it.

    Scan-tool text

    “Function Restriction due to Insufficient Pressure Build-Up.”

    Reported symptoms / notes

    Unable to complete Basic Settings; the fault will not clear from the TCM.

    Possible causes · not a diagnosis

    • Faulty wiring, connections or fuse(s).
    • Mechatronic unit / V401 hydraulic pump motor fault.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Save the complete TCM scan, freeze frame and supply-voltage readings before clearing anything.
    2. Compare requested and actual pressure, build-up behaviour and pressure retention using the procedure for the identified gearbox.
    3. Check power supply and external leakage before deciding whether the pump, accumulator, valve body or sensor is responsible.

    Possible repair direction

    Repair only a confirmed leak, supply fault or failed component. An approved rebuild or replacement may be appropriate if testing proves internal damage; correct fluid handling and vehicle-specific setup follow the repair.

    Maintenance / prevention

    Use the exact fluid specification and service schedule for the gearbox code. Investigate early pressure warnings; repeated ignition cycling does not repair a leak. DQ200 mechatronics fluid is not interchangeable with wet-clutch transmission oil.

    Sensible next step

    Arrange a professional scan plus electrical and hydraulic assessment. Do not assume pump or mechatronic replacement without confirming the fault.

    Ross-Tech source page
    19143 / P2711 / 01000102

    6-speed DSG · 02E / DQ250

    Unexpected or implausible mechanical gear disengagement.

    Function monitored

    Checks whether the commanded gear remains engaged as expected.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    “Unexpected / Implausible Mechanical Gear Disengagement.”

    Reported symptoms / notes

    MIL, transmission malfunction or erratic driving.

    Possible causes · not a diagnosis

    • Worn or faulty dual clutch.
    • Worn or damaged gear shaft(s).
    • Output speed sensor G501/G502.
    • Mechatronic J743. On 02E, no or incorrect Basic Settings can also be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    If the car loses drive or behaves erratically, stop safely and arrange recovery. Otherwise, have a professional full scan, live-data and mechanical assessment. The code alone does not establish clutch failure.

    Ross-Tech source page
    18148 / P1740 / 00595203

    6-speed DSG · 02E / DQ250

    Clutch temperature monitoring.

    Function monitored

    Monitors clutch temperature using sensor G509.

    Speed, temperature and position feedback allow the controller to compare its command with what the gearbox actually does. A missing, electrically faulty or implausible signal can interrupt shifting even if the clutch itself is still usable.

    Scan-tool text

    “Clutch Temperature Monitoring.”

    Reported symptoms / notes

    MIL, limp mode or clutch overheating.

    Possible causes · not a diagnosis

    • Wiring or connectors to G509.
    • G509 sensor fault.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Identify the named sensor from the complete controller-specific description; similar code numbers do not guarantee identical hardware.
    2. Check electrical integrity and compare the affected live reading against related speed, pressure, position or temperature readings.
    3. Inspect contamination and mechanical targets when the repair procedure calls for it; investigate the source of any metal debris.

    Possible repair direction

    Correct the confirmed wiring, target or sensor fault. Some sensors are integrated into the TCU; whether specialist repair or replacement is suitable depends on the unit and test results, not the DTC alone.

    Maintenance / prevention

    Maintain the correct fluid and filter where specified, protect connectors from moisture and address warnings early. A fluid change cannot restore a failed electronic sensor.

    Sensible next step

    If overheating or limp mode occurs, stop safely and call for assistance. A qualified technician should check the sensor and its wiring, and evaluate related codes.

    Ross-Tech source page
    17100 / P0716 / 00181404

    VW transmission DTC · 02E / DQ250 special note

    Input speed sensor G182 reports an implausible signal.

    Function monitored

    Monitors the transmission input-speed signal from sensor G182.

    Speed, temperature and position feedback allow the controller to compare its command with what the gearbox actually does. A missing, electrically faulty or implausible signal can interrupt shifting even if the clutch itself is still usable.

    Scan-tool text

    “Transmission Input Speed Sensor (G182): Implausible Signal.”

    Reported symptoms / notes

    MIL or limp mode.

    Possible causes · not a diagnosis

    • Wiring or connectors to G182.
    • G182 sensor fault.
    • For 02E, P0716 together with P1740 may indicate a shared wiring or connector issue to both G182 and G509.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Identify the named sensor from the complete controller-specific description; similar code numbers do not guarantee identical hardware.
    2. Check electrical integrity and compare the affected live reading against related speed, pressure, position or temperature readings.
    3. Inspect contamination and mechanical targets when the repair procedure calls for it; investigate the source of any metal debris.

    Possible repair direction

    Correct the confirmed wiring, target or sensor fault. Some sensors are integrated into the TCU; whether specialist repair or replacement is suitable depends on the unit and test results, not the DTC alone.

    Maintenance / prevention

    Maintain the correct fluid and filter where specified, protect connectors from moisture and address warnings early. A fluid change cannot restore a failed electronic sensor.

    Sensible next step

    Preserve the complete scan and have the signals and wiring diagnosed professionally.

    Ross-Tech source page
    17114 / P0730 / 00184005

    Generic VW transmission DTC · not DSG-exclusive

    Incorrect gear ratio; this code is not specific to a DSG family.

    Function monitored

    Compares the reported transmission ratio with the expected ratio.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    “Gear Ratio Monitoring: Incorrect Gear Ratio.”

    Reported symptoms / notes

    MIL.

    Possible causes · not a diagnosis

    • Contaminated transmission fluid.
    • Transmission mechanical problem.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    Have a full engine and TCM scan completed and the gearbox inspected to its specification. Check relevant engine-control-module faults too; do not assume a clutch or mechatronic part is at fault.

    Ross-Tech source page
    P175F 00 [047]06

    DQ500 · 0BH / 0BT; procedure note also references 0DE / 0GC

    Basic Settings not performed; a setup/adaptation status, not proof of a failed part.

    Function monitored

    Records that transmission Basic Settings have not been completed.

    Software and learned settings define how a specific gearbox, clutch and vehicle combination works. A setup-related fault is not automatically evidence of worn hardware.

    Scan-tool text

    “Basic Settings Not Performed.” Ross-Tech lists this as the only fault allowed before the DQ500 (0BH/0BT) Basic Settings procedure.

    Reported symptoms / notes

    No universal dashboard message is specified. Ross-Tech notes the procedure may also apply to 0BT/0BH/0DE/0GC controllers when supported.

    Possible causes · not a diagnosis

    This is a setup/adaptation status. The source does not identify a failed component as its cause.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Confirm part numbers, software, gearbox code and repair history against the complete scan.
    2. Check for active faults and the manufacturer prerequisites for the specific procedure.
    3. Review relevant bulletins by VIN, model year and market; do not apply another vehicle's update or procedure blindly.

    Possible repair direction

    A qualified technician completes the applicable guided procedure only after prerequisites and other faults are resolved, then validates operation. Random resets, coding changes and generic adaptation recipes can make the problem worse.

    Maintenance / prevention

    Keep repair and software records. Ask for appropriate setup and post-repair validation; an adaptation reset is neither routine maintenance nor a cure for mechanical wear.

    Sensible next step

    Only a qualified technician should decide whether a vehicle-specific procedure is required and follow its prerequisites. Do not run Basic Settings yourself.

    Ross-Tech source page
    P17BF / 0607907

    DQ200

    Hydraulic pump overload / protection active

    Function monitored

    Protects the pump when operation is excessive or hydraulic pressure cannot be maintained.

    Hydraulic pressure moves the selector actuators and operates the clutches. The controller compares requested pressure with measured pressure and restricts operation when it cannot build, retain or plausibly measure it.

    Scan-tool text

    Hydraulic pump overload / protection active

    Often appears with P189C or P1895. Assess pressure build-up and retention as well as pump power; it is not proof that only the pump motor has failed.

    Reported symptoms / notes

    Flashing gear display, delayed engagement, repeated pump operation, limp mode or no drive can occur; symptoms depend on the controller and fault severity.

    Possible causes · not a diagnosis

    • Internal hydraulic leakage or a pressure accumulator / valve-body problem.
    • Pump, pump supply or control-circuit trouble.
    • A pressure-feedback fault; fluid level or condition where relevant to the fitted unit.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Save the complete TCM scan, freeze frame and supply-voltage readings before clearing anything.
    2. Compare requested and actual pressure, build-up behaviour and pressure retention using the procedure for the identified gearbox.
    3. Check power supply and external leakage before deciding whether the pump, accumulator, valve body or sensor is responsible.

    Possible repair direction

    Repair only a confirmed leak, supply fault or failed component. An approved rebuild or replacement may be appropriate if testing proves internal damage; correct fluid handling and vehicle-specific setup follow the repair.

    Maintenance / prevention

    Use the exact fluid specification and service schedule for the gearbox code. Investigate early pressure warnings; repeated ignition cycling does not repair a leak. DQ200 mechatronics fluid is not interchangeable with wet-clutch transmission oil.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    P189508

    DQ200

    Function restricted because hydraulic pressure drops

    Function monitored

    Checks whether available hydraulic pressure falls below the required level.

    Hydraulic pressure moves the selector actuators and operates the clutches. The controller compares requested pressure with measured pressure and restricts operation when it cannot build, retain or plausibly measure it.

    Scan-tool text

    Function restricted because hydraulic pressure drops

    Investigate internal leakage, accumulator/valve-body condition and pressure measurement; do not treat a code clear as a repair.

    Reported symptoms / notes

    Flashing gear display, delayed engagement, repeated pump operation, limp mode or no drive can occur; symptoms depend on the controller and fault severity.

    Possible causes · not a diagnosis

    • Internal hydraulic leakage or a pressure accumulator / valve-body problem.
    • Pump, pump supply or control-circuit trouble.
    • A pressure-feedback fault; fluid level or condition where relevant to the fitted unit.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Save the complete TCM scan, freeze frame and supply-voltage readings before clearing anything.
    2. Compare requested and actual pressure, build-up behaviour and pressure retention using the procedure for the identified gearbox.
    3. Check power supply and external leakage before deciding whether the pump, accumulator, valve body or sensor is responsible.

    Possible repair direction

    Repair only a confirmed leak, supply fault or failed component. An approved rebuild or replacement may be appropriate if testing proves internal damage; correct fluid handling and vehicle-specific setup follow the repair.

    Maintenance / prevention

    Use the exact fluid specification and service schedule for the gearbox code. Investigate early pressure warnings; repeated ignition cycling does not repair a leak. DQ200 mechatronics fluid is not interchangeable with wet-clutch transmission oil.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    P0841 / 1722509

    DQ200

    Transmission-fluid pressure signal implausible

    Function monitored

    Checks whether the measured hydraulic pressure signal is believable.

    Hydraulic pressure moves the selector actuators and operates the clutches. The controller compares requested pressure with measured pressure and restricts operation when it cannot build, retain or plausibly measure it.

    Scan-tool text

    Transmission-fluid pressure signal implausible

    A signal code can arise from actual low pressure as well as feedback trouble. P0841 also exists on non-DSG transmissions; this entry is the documented DQ200 application.

    Reported symptoms / notes

    Flashing gear display, delayed engagement, repeated pump operation, limp mode or no drive can occur; symptoms depend on the controller and fault severity.

    Possible causes · not a diagnosis

    • Internal hydraulic leakage or a pressure accumulator / valve-body problem.
    • Pump, pump supply or control-circuit trouble.
    • A pressure-feedback fault; fluid level or condition where relevant to the fitted unit.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Save the complete TCM scan, freeze frame and supply-voltage readings before clearing anything.
    2. Compare requested and actual pressure, build-up behaviour and pressure retention using the procedure for the identified gearbox.
    3. Check power supply and external leakage before deciding whether the pump, accumulator, valve body or sensor is responsible.

    Possible repair direction

    Repair only a confirmed leak, supply fault or failed component. An approved rebuild or replacement may be appropriate if testing proves internal damage; correct fluid handling and vehicle-specific setup follow the repair.

    Maintenance / prevention

    Use the exact fluid specification and service schedule for the gearbox code. Investigate early pressure warnings; repeated ignition cycling does not repair a leak. DQ200 mechatronics fluid is not interchangeable with wet-clutch transmission oil.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    P177F10

    DQ200

    Hydraulic pump supply voltage too low

    Function monitored

    Checks the electrical supply available to the hydraulic pump.

    The TCM needs stable power, ground and network communication. Low voltage or lost communication can create several misleading secondary codes and must be resolved before internal components are condemned.

    Scan-tool text

    Hydraulic pump supply voltage too low

    Test the pump supply path and TCU output under the specified conditions; distinguish pump-circuit voltage from general battery voltage.

    Reported symptoms / notes

    No TCM communication, intermittent warnings, limp mode or a no-start condition can occur. Not every stored low-voltage event means the mechatronic has failed.

    Possible causes · not a diagnosis

    • Weak battery, charging or supply-circuit trouble.
    • Fuse, ground, connector or CAN-network fault.
    • An internal control-unit defect, software issue or water ingress.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Check the full vehicle scan and timing of faults; recent battery discharge or work may be relevant.
    2. Test battery/charging performance, voltage at the TCM and ground integrity under the specified conditions.
    3. For communication faults, verify network and supply integrity before testing the module itself.

    Possible repair direction

    Correct the confirmed supply, ground, harness or network problem. Internal TCU repair or replacement is considered only after these checks; replacement may require authorised software, coding and adaptations.

    Maintenance / prevention

    Maintain a healthy battery and secure connections. Repeated fuse failure requires diagnosis, not repeated replacement. Never fit a larger fuse or bypass a protection circuit.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    P0562 / 16946 / 00137811

    Cross-system / controller-dependent

    System supply voltage too low

    Function monitored

    Monitors whether electrical supply is below the controller's acceptable range.

    The TCM needs stable power, ground and network communication. Low voltage or lost communication can create several misleading secondary codes and must be resolved before internal components are condemned.

    Scan-tool text

    System supply voltage too low

    This is not DSG-exclusive. Check when the fault was recorded and whether voltage faults are present in several modules.

    Reported symptoms / notes

    No TCM communication, intermittent warnings, limp mode or a no-start condition can occur. Not every stored low-voltage event means the mechatronic has failed.

    Possible causes · not a diagnosis

    • Weak battery, charging or supply-circuit trouble.
    • Fuse, ground, connector or CAN-network fault.
    • An internal control-unit defect, software issue or water ingress.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Check the full vehicle scan and timing of faults; recent battery discharge or work may be relevant.
    2. Test battery/charging performance, voltage at the TCM and ground integrity under the specified conditions.
    3. For communication faults, verify network and supply integrity before testing the module itself.

    Possible repair direction

    Correct the confirmed supply, ground, harness or network problem. Internal TCU repair or replacement is considered only after these checks; replacement may require authorised software, coding and adaptations.

    Maintenance / prevention

    Maintain a healthy battery and secure connections. Repeated fuse failure requires diagnosis, not repeated replacement. Never fit a larger fuse or bypass a protection circuit.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    P1604 / 18012 / 00563612

    DQ200 / DQ250

    Internal control-module fault

    Function monitored

    Records an internal controller malfunction.

    The TCM needs stable power, ground and network communication. Low voltage or lost communication can create several misleading secondary codes and must be resolved before internal components are condemned.

    Scan-tool text

    Internal control-module fault

    Meaning and legacy identifier vary by controller. Supply and ground checks, software identity and the complete fault text are required before condemning the TCU.

    Reported symptoms / notes

    No TCM communication, intermittent warnings, limp mode or a no-start condition can occur. Not every stored low-voltage event means the mechatronic has failed.

    Possible causes · not a diagnosis

    • Weak battery, charging or supply-circuit trouble.
    • Fuse, ground, connector or CAN-network fault.
    • An internal control-unit defect, software issue or water ingress.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Check the full vehicle scan and timing of faults; recent battery discharge or work may be relevant.
    2. Test battery/charging performance, voltage at the TCM and ground integrity under the specified conditions.
    3. For communication faults, verify network and supply integrity before testing the module itself.

    Possible repair direction

    Correct the confirmed supply, ground, harness or network problem. Internal TCU repair or replacement is considered only after these checks; replacement may require authorised software, coding and adaptations.

    Maintenance / prevention

    Maintain a healthy battery and secure connections. Repeated fuse failure requires diagnosis, not repeated replacement. Never fit a larger fuse or bypass a protection circuit.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    U0101 / 0131513

    DQ200

    Communication with transmission control module lost

    Function monitored

    Checks communication between vehicle modules and the transmission controller.

    The TCM needs stable power, ground and network communication. Low voltage or lost communication can create several misleading secondary codes and must be resolved before internal components are condemned.

    Scan-tool text

    Communication with transmission control module lost

    The fault may be stored in another module because the TCM cannot be reached. Check TCM power, ground and CAN communication before assuming module failure.

    Reported symptoms / notes

    No TCM communication, intermittent warnings, limp mode or a no-start condition can occur. Not every stored low-voltage event means the mechatronic has failed.

    Possible causes · not a diagnosis

    • Weak battery, charging or supply-circuit trouble.
    • Fuse, ground, connector or CAN-network fault.
    • An internal control-unit defect, software issue or water ingress.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Check the full vehicle scan and timing of faults; recent battery discharge or work may be relevant.
    2. Test battery/charging performance, voltage at the TCM and ground integrity under the specified conditions.
    3. For communication faults, verify network and supply integrity before testing the module itself.

    Possible repair direction

    Correct the confirmed supply, ground, harness or network problem. Internal TCU repair or replacement is considered only after these checks; replacement may require authorised software, coding and adaptations.

    Maintenance / prevention

    Maintain a healthy battery and secure connections. Repeated fuse failure requires diagnosis, not repeated replacement. Never fit a larger fuse or bypass a protection circuit.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    P173A14

    DQ200

    Gear-selector position sensor 1: implausible signal

    Function monitored

    Checks feedback from selector position sensor 1; sensor numbering is not the same as gear numbering.

    Speed, temperature and position feedback allow the controller to compare its command with what the gearbox actually does. A missing, electrically faulty or implausible signal can interrupt shifting even if the clutch itself is still usable.

    Scan-tool text

    Gear-selector position sensor 1: implausible signal

    The ACTRONICS reference advises checking sensor magnets for metal contamination and investigating mechanical wear. A sensor code alone does not establish that a complete replacement mechatronic is necessary.

    Reported symptoms / notes

    Warning lights, limp mode, erratic engagement or loss of one set of gears may occur. A temperature-monitoring code does not by itself prove genuine overheating.

    Possible causes · not a diagnosis

    • A sensor or its internal signal-processing circuit may be faulty.
    • Connector, harness, supply or ground trouble.
    • Contamination, mechanical wear or a displaced sensor target can make a healthy sensor report an unexpected value.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Identify the named sensor from the complete controller-specific description; similar code numbers do not guarantee identical hardware.
    2. Check electrical integrity and compare the affected live reading against related speed, pressure, position or temperature readings.
    3. Inspect contamination and mechanical targets when the repair procedure calls for it; investigate the source of any metal debris.

    Possible repair direction

    Correct the confirmed wiring, target or sensor fault. Some sensors are integrated into the TCU; whether specialist repair or replacement is suitable depends on the unit and test results, not the DTC alone.

    Maintenance / prevention

    Maintain the correct fluid and filter where specified, protect connectors from moisture and address warnings early. A fluid change cannot restore a failed electronic sensor.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    P173B15

    DQ200

    Gear-selector position sensor 2: implausible signal

    Function monitored

    Checks feedback from selector position sensor 2; sensor numbering is not the same as gear numbering.

    Speed, temperature and position feedback allow the controller to compare its command with what the gearbox actually does. A missing, electrically faulty or implausible signal can interrupt shifting even if the clutch itself is still usable.

    Scan-tool text

    Gear-selector position sensor 2: implausible signal

    The ACTRONICS reference advises checking sensor magnets for metal contamination and investigating mechanical wear. A sensor code alone does not establish that a complete replacement mechatronic is necessary.

    Reported symptoms / notes

    Warning lights, limp mode, erratic engagement or loss of one set of gears may occur. A temperature-monitoring code does not by itself prove genuine overheating.

    Possible causes · not a diagnosis

    • A sensor or its internal signal-processing circuit may be faulty.
    • Connector, harness, supply or ground trouble.
    • Contamination, mechanical wear or a displaced sensor target can make a healthy sensor report an unexpected value.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Identify the named sensor from the complete controller-specific description; similar code numbers do not guarantee identical hardware.
    2. Check electrical integrity and compare the affected live reading against related speed, pressure, position or temperature readings.
    3. Inspect contamination and mechanical targets when the repair procedure calls for it; investigate the source of any metal debris.

    Possible repair direction

    Correct the confirmed wiring, target or sensor fault. Some sensors are integrated into the TCU; whether specialist repair or replacement is suitable depends on the unit and test results, not the DTC alone.

    Maintenance / prevention

    Maintain the correct fluid and filter where specified, protect connectors from moisture and address warnings early. A fluid change cannot restore a failed electronic sensor.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    P173C16

    DQ200

    Gear-selector position sensor 3: implausible signal

    Function monitored

    Checks feedback from selector position sensor 3; sensor numbering is not the same as gear numbering.

    Speed, temperature and position feedback allow the controller to compare its command with what the gearbox actually does. A missing, electrically faulty or implausible signal can interrupt shifting even if the clutch itself is still usable.

    Scan-tool text

    Gear-selector position sensor 3: implausible signal

    The ACTRONICS reference advises checking sensor magnets for metal contamination and investigating mechanical wear. A sensor code alone does not establish that a complete replacement mechatronic is necessary.

    Reported symptoms / notes

    Warning lights, limp mode, erratic engagement or loss of one set of gears may occur. A temperature-monitoring code does not by itself prove genuine overheating.

    Possible causes · not a diagnosis

    • A sensor or its internal signal-processing circuit may be faulty.
    • Connector, harness, supply or ground trouble.
    • Contamination, mechanical wear or a displaced sensor target can make a healthy sensor report an unexpected value.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Identify the named sensor from the complete controller-specific description; similar code numbers do not guarantee identical hardware.
    2. Check electrical integrity and compare the affected live reading against related speed, pressure, position or temperature readings.
    3. Inspect contamination and mechanical targets when the repair procedure calls for it; investigate the source of any metal debris.

    Possible repair direction

    Correct the confirmed wiring, target or sensor fault. Some sensors are integrated into the TCU; whether specialist repair or replacement is suitable depends on the unit and test results, not the DTC alone.

    Maintenance / prevention

    Maintain the correct fluid and filter where specified, protect connectors from moisture and address warnings early. A fluid change cannot restore a failed electronic sensor.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    P173D17

    DQ200

    Gear-selector position sensor 4: implausible signal

    Function monitored

    Checks feedback from selector position sensor 4; sensor numbering is not the same as gear numbering.

    Speed, temperature and position feedback allow the controller to compare its command with what the gearbox actually does. A missing, electrically faulty or implausible signal can interrupt shifting even if the clutch itself is still usable.

    Scan-tool text

    Gear-selector position sensor 4: implausible signal

    The ACTRONICS reference advises checking sensor magnets for metal contamination and investigating mechanical wear. A sensor code alone does not establish that a complete replacement mechatronic is necessary.

    Reported symptoms / notes

    Warning lights, limp mode, erratic engagement or loss of one set of gears may occur. A temperature-monitoring code does not by itself prove genuine overheating.

    Possible causes · not a diagnosis

    • A sensor or its internal signal-processing circuit may be faulty.
    • Connector, harness, supply or ground trouble.
    • Contamination, mechanical wear or a displaced sensor target can make a healthy sensor report an unexpected value.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Identify the named sensor from the complete controller-specific description; similar code numbers do not guarantee identical hardware.
    2. Check electrical integrity and compare the affected live reading against related speed, pressure, position or temperature readings.
    3. Inspect contamination and mechanical targets when the repair procedure calls for it; investigate the source of any metal debris.

    Possible repair direction

    Correct the confirmed wiring, target or sensor fault. Some sensors are integrated into the TCU; whether specialist repair or replacement is suitable depends on the unit and test results, not the DTC alone.

    Maintenance / prevention

    Maintain the correct fluid and filter where specified, protect connectors from moisture and address warnings early. A fluid change cannot restore a failed electronic sensor.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    P072A18

    DQ200

    Neutral selection / engagement fault

    Function monitored

    Confirms whether neutral can be selected and engaged.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    Neutral selection / engagement fault

    The DQ200 source describes these as 'not selectable', particularly after incorrect mechatronic installation. Generic OBD readers may instead say 'stuck in gear'. Use the actual controller text; inspect installation if the fault began directly after work.

    Reported symptoms / notes

    A gear may be unavailable, the gearbox may drop into neutral, or only a reduced set of gears may remain. Scan-tool wording can describe 'stuck', 'not selectable' or 'not adjustable' depending on the controller.

    Possible causes · not a diagnosis

    • Hydraulic actuation or selector-position feedback trouble.
    • Fork, synchroniser, shaft or other internal mechanical wear.
    • Incorrect installation, alignment or incomplete settings after previous work.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    P072B19

    DQ200

    Reverse selection / engagement fault

    Function monitored

    Confirms whether reverse can be selected and engaged.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    Reverse selection / engagement fault

    The DQ200 source describes these as 'not selectable', particularly after incorrect mechatronic installation. Generic OBD readers may instead say 'stuck in gear'. Use the actual controller text; inspect installation if the fault began directly after work.

    Reported symptoms / notes

    A gear may be unavailable, the gearbox may drop into neutral, or only a reduced set of gears may remain. Scan-tool wording can describe 'stuck', 'not selectable' or 'not adjustable' depending on the controller.

    Possible causes · not a diagnosis

    • Hydraulic actuation or selector-position feedback trouble.
    • Fork, synchroniser, shaft or other internal mechanical wear.
    • Incorrect installation, alignment or incomplete settings after previous work.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    P072C20

    DQ200

    1st gear selection / engagement fault

    Function monitored

    Confirms whether 1st gear can be selected and engaged.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    1st gear selection / engagement fault

    The DQ200 source describes these as 'not selectable', particularly after incorrect mechatronic installation. Generic OBD readers may instead say 'stuck in gear'. Use the actual controller text; inspect installation if the fault began directly after work.

    Reported symptoms / notes

    A gear may be unavailable, the gearbox may drop into neutral, or only a reduced set of gears may remain. Scan-tool wording can describe 'stuck', 'not selectable' or 'not adjustable' depending on the controller.

    Possible causes · not a diagnosis

    • Hydraulic actuation or selector-position feedback trouble.
    • Fork, synchroniser, shaft or other internal mechanical wear.
    • Incorrect installation, alignment or incomplete settings after previous work.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    P072D21

    DQ200

    2nd gear selection / engagement fault

    Function monitored

    Confirms whether 2nd gear can be selected and engaged.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    2nd gear selection / engagement fault

    The DQ200 source describes these as 'not selectable', particularly after incorrect mechatronic installation. Generic OBD readers may instead say 'stuck in gear'. Use the actual controller text; inspect installation if the fault began directly after work.

    Reported symptoms / notes

    A gear may be unavailable, the gearbox may drop into neutral, or only a reduced set of gears may remain. Scan-tool wording can describe 'stuck', 'not selectable' or 'not adjustable' depending on the controller.

    Possible causes · not a diagnosis

    • Hydraulic actuation or selector-position feedback trouble.
    • Fork, synchroniser, shaft or other internal mechanical wear.
    • Incorrect installation, alignment or incomplete settings after previous work.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    P072E22

    DQ200

    3rd gear selection / engagement fault

    Function monitored

    Confirms whether 3rd gear can be selected and engaged.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    3rd gear selection / engagement fault

    The DQ200 source describes these as 'not selectable', particularly after incorrect mechatronic installation. Generic OBD readers may instead say 'stuck in gear'. Use the actual controller text; inspect installation if the fault began directly after work.

    Reported symptoms / notes

    A gear may be unavailable, the gearbox may drop into neutral, or only a reduced set of gears may remain. Scan-tool wording can describe 'stuck', 'not selectable' or 'not adjustable' depending on the controller.

    Possible causes · not a diagnosis

    • Hydraulic actuation or selector-position feedback trouble.
    • Fork, synchroniser, shaft or other internal mechanical wear.
    • Incorrect installation, alignment or incomplete settings after previous work.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    P072F23

    DQ200

    4th gear selection / engagement fault

    Function monitored

    Confirms whether 4th gear can be selected and engaged.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    4th gear selection / engagement fault

    The DQ200 source describes these as 'not selectable', particularly after incorrect mechatronic installation. Generic OBD readers may instead say 'stuck in gear'. Use the actual controller text; inspect installation if the fault began directly after work.

    Reported symptoms / notes

    A gear may be unavailable, the gearbox may drop into neutral, or only a reduced set of gears may remain. Scan-tool wording can describe 'stuck', 'not selectable' or 'not adjustable' depending on the controller.

    Possible causes · not a diagnosis

    • Hydraulic actuation or selector-position feedback trouble.
    • Fork, synchroniser, shaft or other internal mechanical wear.
    • Incorrect installation, alignment or incomplete settings after previous work.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    P073A24

    DQ200

    5th gear selection / engagement fault

    Function monitored

    Confirms whether 5th gear can be selected and engaged.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    5th gear selection / engagement fault

    The DQ200 source describes these as 'not selectable', particularly after incorrect mechatronic installation. Generic OBD readers may instead say 'stuck in gear'. Use the actual controller text; inspect installation if the fault began directly after work.

    Reported symptoms / notes

    A gear may be unavailable, the gearbox may drop into neutral, or only a reduced set of gears may remain. Scan-tool wording can describe 'stuck', 'not selectable' or 'not adjustable' depending on the controller.

    Possible causes · not a diagnosis

    • Hydraulic actuation or selector-position feedback trouble.
    • Fork, synchroniser, shaft or other internal mechanical wear.
    • Incorrect installation, alignment or incomplete settings after previous work.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    P073B25

    DQ200

    6th gear selection / engagement fault

    Function monitored

    Confirms whether 6th gear can be selected and engaged.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    6th gear selection / engagement fault

    The DQ200 source describes these as 'not selectable', particularly after incorrect mechatronic installation. Generic OBD readers may instead say 'stuck in gear'. Use the actual controller text; inspect installation if the fault began directly after work.

    Reported symptoms / notes

    A gear may be unavailable, the gearbox may drop into neutral, or only a reduced set of gears may remain. Scan-tool wording can describe 'stuck', 'not selectable' or 'not adjustable' depending on the controller.

    Possible causes · not a diagnosis

    • Hydraulic actuation or selector-position feedback trouble.
    • Fork, synchroniser, shaft or other internal mechanical wear.
    • Incorrect installation, alignment or incomplete settings after previous work.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    P073C26

    DQ200

    7th gear selection / engagement fault

    Function monitored

    Confirms whether 7th gear can be selected and engaged.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    7th gear selection / engagement fault

    The DQ200 source describes these as 'not selectable', particularly after incorrect mechatronic installation. Generic OBD readers may instead say 'stuck in gear'. Use the actual controller text; inspect installation if the fault began directly after work.

    Reported symptoms / notes

    A gear may be unavailable, the gearbox may drop into neutral, or only a reduced set of gears may remain. Scan-tool wording can describe 'stuck', 'not selectable' or 'not adjustable' depending on the controller.

    Possible causes · not a diagnosis

    • Hydraulic actuation or selector-position feedback trouble.
    • Fork, synchroniser, shaft or other internal mechanical wear.
    • Incorrect installation, alignment or incomplete settings after previous work.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ200 reference
    P177C27

    DQ200

    Clutch tolerance limit reached

    Function monitored

    Checks whether learned clutch operation has reached the controller's permitted tolerance.

    The two clutch paths transfer torque in a controlled overlap. Feedback, pressure and learned engagement values help the controller manage slip and identify a clutch that opens, closes or travels beyond its expected limits.

    Scan-tool text

    Clutch tolerance limit reached

    Assess wear, installation and adjustment with the actual clutch-specific scan text. Resetting the learned values cannot reverse friction-material wear.

    Reported symptoms / notes

    Judder, engine-speed flare, delayed engagement, harsh shifts or loss of odd/even gears may be noticed. Unintended clutch operation is not safe to test on public roads.

    Possible causes · not a diagnosis

    • Clutch wear, incorrect adjustment or an installation problem.
    • Hydraulic regulation or an internal valve fault.
    • Incorrect feedback or control-unit/software trouble; a clutch code can be secondary to another fault.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Assess the complete fault set, gearbox identity, temperatures and supply before interpreting clutch wear.
    2. Compare requested and measured clutch operation, slip and adaptation values with the fitted gearbox's limits.
    3. Check relevant manufacturer software/bulletin applicability and inspect mechanical condition before prescribing a clutch pack.

    Possible repair direction

    A confirmed worn clutch may need replacement and specified setup. Hydraulic, feedback, installation or software faults need their own correction; resetting adaptations is not a substitute for repair.

    Maintenance / prevention

    Avoid holding the car on an incline with the accelerator and prolonged inching that slips the clutch. Follow vehicle-specific fluid/filter servicing for wet-clutch units and investigate new judder or burning smells.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ200 clutch tolerance
    P0701 / 1708528

    DQ250

    Transmission control: range / performance or implausible signal

    Function monitored

    Monitors overall transmission-control plausibility.

    The TCM needs stable power, ground and network communication. Low voltage or lost communication can create several misleading secondary codes and must be resolved before internal components are condemned.

    Scan-tool text

    Transmission control: range / performance or implausible signal

    This is a broad control-system code. Associated TCM faults are needed to identify the affected subsystem.

    Reported symptoms / notes

    No TCM communication, intermittent warnings, limp mode or a no-start condition can occur. Not every stored low-voltage event means the mechatronic has failed.

    Possible causes · not a diagnosis

    • Weak battery, charging or supply-circuit trouble.
    • Fuse, ground, connector or CAN-network fault.
    • An internal control-unit defect, software issue or water ingress.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Check the full vehicle scan and timing of faults; recent battery discharge or work may be relevant.
    2. Test battery/charging performance, voltage at the TCM and ground integrity under the specified conditions.
    3. For communication faults, verify network and supply integrity before testing the module itself.

    Possible repair direction

    Correct the confirmed supply, ground, harness or network problem. Internal TCU repair or replacement is considered only after these checks; replacement may require authorised software, coding and adaptations.

    Maintenance / prevention

    Maintain a healthy battery and secure connections. Repeated fuse failure requires diagnosis, not repeated replacement. Never fit a larger fuse or bypass a protection circuit.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P0722 / 1710629

    DQ250

    Output-speed sensor G195: no signal

    Function monitored

    Reports missing transmission output-speed feedback.

    Speed, temperature and position feedback allow the controller to compare its command with what the gearbox actually does. A missing, electrically faulty or implausible signal can interrupt shifting even if the clutch itself is still usable.

    Scan-tool text

    Output-speed sensor G195: no signal

    Check the named sensor, wiring and signal relationship. Do not confuse output speed with the engine or input-shaft speed.

    Reported symptoms / notes

    Warning lights, limp mode, erratic engagement or loss of one set of gears may occur. A temperature-monitoring code does not by itself prove genuine overheating.

    Possible causes · not a diagnosis

    • A sensor or its internal signal-processing circuit may be faulty.
    • Connector, harness, supply or ground trouble.
    • Contamination, mechanical wear or a displaced sensor target can make a healthy sensor report an unexpected value.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Identify the named sensor from the complete controller-specific description; similar code numbers do not guarantee identical hardware.
    2. Check electrical integrity and compare the affected live reading against related speed, pressure, position or temperature readings.
    3. Inspect contamination and mechanical targets when the repair procedure calls for it; investigate the source of any metal debris.

    Possible repair direction

    Correct the confirmed wiring, target or sensor fault. Some sensors are integrated into the TCU; whether specialist repair or replacement is suitable depends on the unit and test results, not the DTC alone.

    Maintenance / prevention

    Maintain the correct fluid and filter where specified, protect connectors from moisture and address warnings early. A fluid change cannot restore a failed electronic sensor.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1707 / 1811530

    DQ250

    Mechatronic module malfunction

    Function monitored

    Records a fault in the mechatronic module as reported by the DQ250 controller.

    The TCM needs stable power, ground and network communication. Low voltage or lost communication can create several misleading secondary codes and must be resolved before internal components are condemned.

    Scan-tool text

    Mechatronic module malfunction

    Use the full description and related faults to separate electrical, hydraulic and software causes.

    Reported symptoms / notes

    No TCM communication, intermittent warnings, limp mode or a no-start condition can occur. Not every stored low-voltage event means the mechatronic has failed.

    Possible causes · not a diagnosis

    • Weak battery, charging or supply-circuit trouble.
    • Fuse, ground, connector or CAN-network fault.
    • An internal control-unit defect, software issue or water ingress.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Check the full vehicle scan and timing of faults; recent battery discharge or work may be relevant.
    2. Test battery/charging performance, voltage at the TCM and ground integrity under the specified conditions.
    3. For communication faults, verify network and supply integrity before testing the module itself.

    Possible repair direction

    Correct the confirmed supply, ground, harness or network problem. Internal TCU repair or replacement is considered only after these checks; replacement may require authorised software, coding and adaptations.

    Maintenance / prevention

    Maintain a healthy battery and secure connections. Repeated fuse failure requires diagnosis, not repeated replacement. Never fit a larger fuse or bypass a protection circuit.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1746 / 1815431

    DQ250

    Solenoid-valve supply: electrical fault

    Function monitored

    Monitors the shared electrical supply used by the solenoid valves.

    The TCM needs stable power, ground and network communication. Low voltage or lost communication can create several misleading secondary codes and must be resolved before internal components are condemned.

    Scan-tool text

    Solenoid-valve supply: electrical fault

    Several valve codes appearing together make the shared supply path especially important; do not replace every valve independently without checking it.

    Reported symptoms / notes

    No TCM communication, intermittent warnings, limp mode or a no-start condition can occur. Not every stored low-voltage event means the mechatronic has failed.

    Possible causes · not a diagnosis

    • Weak battery, charging or supply-circuit trouble.
    • Fuse, ground, connector or CAN-network fault.
    • An internal control-unit defect, software issue or water ingress.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Check the full vehicle scan and timing of faults; recent battery discharge or work may be relevant.
    2. Test battery/charging performance, voltage at the TCM and ground integrity under the specified conditions.
    3. For communication faults, verify network and supply integrity before testing the module itself.

    Possible repair direction

    Correct the confirmed supply, ground, harness or network problem. Internal TCU repair or replacement is considered only after these checks; replacement may require authorised software, coding and adaptations.

    Maintenance / prevention

    Maintain a healthy battery and secure connections. Repeated fuse failure requires diagnosis, not repeated replacement. Never fit a larger fuse or bypass a protection circuit.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P0731 / 1711532

    DQ250

    Gear 1: incorrect ratio

    Function monitored

    Compares shaft-speed feedback against the expected ratio while gear 1 is commanded.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    Gear 1: incorrect ratio

    A wrong ratio can arise from slip, pressure loss, sensor feedback or internal mechanical damage. Inspect related codes before deciding on clutch or gear replacement.

    Reported symptoms / notes

    A gear may be unavailable, the gearbox may drop into neutral, or only a reduced set of gears may remain. Scan-tool wording can describe 'stuck', 'not selectable' or 'not adjustable' depending on the controller.

    Possible causes · not a diagnosis

    • Hydraulic actuation or selector-position feedback trouble.
    • Fork, synchroniser, shaft or other internal mechanical wear.
    • Incorrect installation, alignment or incomplete settings after previous work.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ250 reference
    P0732 / 1711633

    DQ250

    Gear 2: incorrect ratio

    Function monitored

    Compares shaft-speed feedback against the expected ratio while gear 2 is commanded.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    Gear 2: incorrect ratio

    A wrong ratio can arise from slip, pressure loss, sensor feedback or internal mechanical damage. Inspect related codes before deciding on clutch or gear replacement.

    Reported symptoms / notes

    A gear may be unavailable, the gearbox may drop into neutral, or only a reduced set of gears may remain. Scan-tool wording can describe 'stuck', 'not selectable' or 'not adjustable' depending on the controller.

    Possible causes · not a diagnosis

    • Hydraulic actuation or selector-position feedback trouble.
    • Fork, synchroniser, shaft or other internal mechanical wear.
    • Incorrect installation, alignment or incomplete settings after previous work.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ250 reference
    P0733 / 1711734

    DQ250

    Gear 3: incorrect ratio

    Function monitored

    Compares shaft-speed feedback against the expected ratio while gear 3 is commanded.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    Gear 3: incorrect ratio

    A wrong ratio can arise from slip, pressure loss, sensor feedback or internal mechanical damage. Inspect related codes before deciding on clutch or gear replacement.

    Reported symptoms / notes

    A gear may be unavailable, the gearbox may drop into neutral, or only a reduced set of gears may remain. Scan-tool wording can describe 'stuck', 'not selectable' or 'not adjustable' depending on the controller.

    Possible causes · not a diagnosis

    • Hydraulic actuation or selector-position feedback trouble.
    • Fork, synchroniser, shaft or other internal mechanical wear.
    • Incorrect installation, alignment or incomplete settings after previous work.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ250 reference
    P0734 / 1711835

    DQ250

    Gear 4: incorrect ratio

    Function monitored

    Compares shaft-speed feedback against the expected ratio while gear 4 is commanded.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    Gear 4: incorrect ratio

    A wrong ratio can arise from slip, pressure loss, sensor feedback or internal mechanical damage. Inspect related codes before deciding on clutch or gear replacement.

    Reported symptoms / notes

    A gear may be unavailable, the gearbox may drop into neutral, or only a reduced set of gears may remain. Scan-tool wording can describe 'stuck', 'not selectable' or 'not adjustable' depending on the controller.

    Possible causes · not a diagnosis

    • Hydraulic actuation or selector-position feedback trouble.
    • Fork, synchroniser, shaft or other internal mechanical wear.
    • Incorrect installation, alignment or incomplete settings after previous work.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ250 reference
    P0735 / 1711936

    DQ250

    Gear 5: incorrect ratio

    Function monitored

    Compares shaft-speed feedback against the expected ratio while gear 5 is commanded.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    Gear 5: incorrect ratio

    A wrong ratio can arise from slip, pressure loss, sensor feedback or internal mechanical damage. Inspect related codes before deciding on clutch or gear replacement.

    Reported symptoms / notes

    A gear may be unavailable, the gearbox may drop into neutral, or only a reduced set of gears may remain. Scan-tool wording can describe 'stuck', 'not selectable' or 'not adjustable' depending on the controller.

    Possible causes · not a diagnosis

    • Hydraulic actuation or selector-position feedback trouble.
    • Fork, synchroniser, shaft or other internal mechanical wear.
    • Incorrect installation, alignment or incomplete settings after previous work.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ250 reference
    P1813 / 1822137

    DQ250

    Pressure-control valve 1 (N215): electrical malfunction

    Function monitored

    Monitors the electrical circuit for pressure-control valve 1, identified as N215 in the DQ250 reference.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 1 (N215): electrical malfunction

    Test the N215 circuit with the fitted unit's wiring diagram. An electrical DTC is not proof of a mechanically stuck valve.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1814 / 1822238

    DQ250

    Pressure-control valve 1 (N215): open circuit / short to ground

    Function monitored

    Monitors the electrical circuit for pressure-control valve 1, identified as N215 in the DQ250 reference.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 1 (N215): open circuit / short to ground

    Test the N215 circuit with the fitted unit's wiring diagram. An electrical DTC is not proof of a mechanically stuck valve.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1815 / 1822339

    DQ250

    Pressure-control valve 1 (N215): short to positive supply

    Function monitored

    Monitors the electrical circuit for pressure-control valve 1, identified as N215 in the DQ250 reference.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 1 (N215): short to positive supply

    Test the N215 circuit with the fitted unit's wiring diagram. A short to positive supply needs a different circuit investigation from an open circuit.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1818 / 1822640

    DQ250

    Pressure-control valve 2 (N216): electrical malfunction

    Function monitored

    Monitors the electrical circuit for pressure-control valve 2, identified as N216 in the DQ250 reference.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 2 (N216): electrical malfunction

    Test the N216 circuit with the fitted unit's wiring diagram. An electrical DTC is not proof of a mechanically stuck valve.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1819 / 1822741

    DQ250

    Pressure-control valve 2 (N216): open circuit / short to ground

    Function monitored

    Monitors the electrical circuit for pressure-control valve 2, identified as N216 in the DQ250 reference.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 2 (N216): open circuit / short to ground

    Test the N216 circuit with the fitted unit's wiring diagram. An electrical DTC is not proof of a mechanically stuck valve.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1820 / 1822842

    DQ250

    Pressure-control valve 2 (N216): short to positive supply

    Function monitored

    Monitors the electrical circuit for pressure-control valve 2, identified as N216 in the DQ250 reference.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 2 (N216): short to positive supply

    Test the N216 circuit with the fitted unit's wiring diagram. A short to positive supply needs a different circuit investigation from an open circuit.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1823 / 1823143

    DQ250

    Pressure-control valve 3 (N217): electrical malfunction

    Function monitored

    Monitors the electrical circuit for pressure-control valve 3, identified as N217 in the DQ250 reference.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 3 (N217): electrical malfunction

    Test the N217 circuit with the fitted unit's wiring diagram. An electrical DTC is not proof of a mechanically stuck valve.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1824 / 1823244

    DQ250

    Pressure-control valve 3 (N217): open circuit / short to ground

    Function monitored

    Monitors the electrical circuit for pressure-control valve 3, identified as N217 in the DQ250 reference.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 3 (N217): open circuit / short to ground

    Test the N217 circuit with the fitted unit's wiring diagram. An electrical DTC is not proof of a mechanically stuck valve.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1825 / 1823345

    DQ250

    Pressure-control valve 3 (N217): short to positive supply

    Function monitored

    Monitors the electrical circuit for pressure-control valve 3, identified as N217 in the DQ250 reference.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 3 (N217): short to positive supply

    Test the N217 circuit with the fitted unit's wiring diagram. A short to positive supply needs a different circuit investigation from an open circuit.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1828 / 1823646

    DQ250

    Pressure-control valve 4 (N218): electrical malfunction

    Function monitored

    Monitors the electrical circuit for pressure-control valve 4, identified as N218 in the DQ250 reference.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 4 (N218): electrical malfunction

    Test the N218 circuit with the fitted unit's wiring diagram. An electrical DTC is not proof of a mechanically stuck valve.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1829 / 1823747

    DQ250

    Pressure-control valve 4 (N218): open circuit / short to ground

    Function monitored

    Monitors the electrical circuit for pressure-control valve 4, identified as N218 in the DQ250 reference.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 4 (N218): open circuit / short to ground

    Test the N218 circuit with the fitted unit's wiring diagram. An electrical DTC is not proof of a mechanically stuck valve.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1830 / 1823848

    DQ250

    Pressure-control valve 4 (N218): short to positive supply

    Function monitored

    Monitors the electrical circuit for pressure-control valve 4, identified as N218 in the DQ250 reference.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 4 (N218): short to positive supply

    Test the N218 circuit with the fitted unit's wiring diagram. A short to positive supply needs a different circuit investigation from an open circuit.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1833 / 1824149

    DQ250

    Pressure-control valve 5 (N233): electrical malfunction

    Function monitored

    Monitors the electrical circuit for pressure-control valve 5, identified as N233 in the DQ250 reference.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 5 (N233): electrical malfunction

    Test the N233 circuit with the fitted unit's wiring diagram. An electrical DTC is not proof of a mechanically stuck valve.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1834 / 1824250

    DQ250

    Pressure-control valve 5 (N233): open circuit / short to ground

    Function monitored

    Monitors the electrical circuit for pressure-control valve 5, identified as N233 in the DQ250 reference.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 5 (N233): open circuit / short to ground

    Test the N233 circuit with the fitted unit's wiring diagram. An electrical DTC is not proof of a mechanically stuck valve.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1835 / 1824351

    DQ250

    Pressure-control valve 5 (N233): short to positive supply

    Function monitored

    Monitors the electrical circuit for pressure-control valve 5, identified as N233 in the DQ250 reference.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 5 (N233): short to positive supply

    Test the N233 circuit with the fitted unit's wiring diagram. A short to positive supply needs a different circuit investigation from an open circuit.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1838 / 1824652

    DQ250

    Pressure-control valve 6 (N371): electrical malfunction

    Function monitored

    Monitors the electrical circuit for pressure-control valve 6, identified as N371 in the DQ250 reference.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 6 (N371): electrical malfunction

    Test the N371 circuit with the fitted unit's wiring diagram. An electrical DTC is not proof of a mechanically stuck valve.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1839 / 1824753

    DQ250

    Pressure-control valve 6 (N371): open circuit / short to ground

    Function monitored

    Monitors the electrical circuit for pressure-control valve 6, identified as N371 in the DQ250 reference.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 6 (N371): open circuit / short to ground

    Test the N371 circuit with the fitted unit's wiring diagram. An electrical DTC is not proof of a mechanically stuck valve.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1840 / 1824854

    DQ250

    Pressure-control valve 6 (N371): short to positive supply

    Function monitored

    Monitors the electrical circuit for pressure-control valve 6, identified as N371 in the DQ250 reference.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 6 (N371): short to positive supply

    Test the N371 circuit with the fitted unit's wiring diagram. A short to positive supply needs a different circuit investigation from an open circuit.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P0746 / 1713055

    DQ250

    Pressure-control valve 1 (N215): regulation / circuit fault

    Function monitored

    Monitors the pressure-control valve 1 path associated with N215 on documented DQ250 units.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 1 (N215): regulation / circuit fault

    The ACTRONICS DQ250 guide reports interruption/short-to-ground wording for this code. Generic OBD definitions may use performance/stuck-off wording. The complete VAG fault text and subcode determine which electrical or hydraulic checks apply.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P0756 / 1714056

    DQ250

    Shift solenoid 2 (N89): regulation / circuit fault

    Function monitored

    Monitors the shift solenoid 2 path associated with N89 on documented DQ250 units.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Shift solenoid 2 (N89): regulation / circuit fault

    The ACTRONICS DQ250 guide reports interruption/short-to-ground wording for this code. Generic OBD definitions may use performance/stuck-off wording. The complete VAG fault text and subcode determine which electrical or hydraulic checks apply.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P0761 / 1714557

    DQ250

    Shift solenoid 3 (N90): regulation / circuit fault

    Function monitored

    Monitors the shift solenoid 3 path associated with N90 on documented DQ250 units.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Shift solenoid 3 (N90): regulation / circuit fault

    The ACTRONICS DQ250 guide reports interruption/short-to-ground wording for this code. Generic OBD definitions may use performance/stuck-off wording. The complete VAG fault text and subcode determine which electrical or hydraulic checks apply.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P0766 / 1715058

    DQ250

    Shift solenoid 4 (N91): regulation / circuit fault

    Function monitored

    Monitors the shift solenoid 4 path associated with N91 on documented DQ250 units.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Shift solenoid 4 (N91): regulation / circuit fault

    The ACTRONICS DQ250 guide reports interruption/short-to-ground wording for this code. Generic OBD definitions may use performance/stuck-off wording. The complete VAG fault text and subcode determine which electrical or hydraulic checks apply.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P0771 / 1715559

    DQ250

    Shift solenoid 5 (N92): regulation / circuit fault

    Function monitored

    Monitors the shift solenoid 5 path associated with N92 on documented DQ250 units.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Shift solenoid 5 (N92): regulation / circuit fault

    The ACTRONICS DQ250 guide reports interruption/short-to-ground wording for this code. Generic OBD definitions may use performance/stuck-off wording. The complete VAG fault text and subcode determine which electrical or hydraulic checks apply.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P0776 / 1716060

    DQ250

    Pressure-control valve 2 (N216): regulation / circuit fault

    Function monitored

    Monitors the pressure-control valve 2 path associated with N216 on documented DQ250 units.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 2 (N216): regulation / circuit fault

    The ACTRONICS DQ250 guide reports interruption/short-to-ground wording for this code. Generic OBD definitions may use performance/stuck-off wording. The complete VAG fault text and subcode determine which electrical or hydraulic checks apply.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P2732 / 1916461

    DQ250

    Pressure-control valve 6 (N371): regulation / circuit fault

    Function monitored

    Monitors the pressure-control valve 6 path associated with N371 on documented DQ250 units.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 6 (N371): regulation / circuit fault

    The ACTRONICS DQ250 guide reports interruption/short-to-ground wording for this code. Generic OBD definitions may use performance/stuck-off wording. The complete VAG fault text and subcode determine which electrical or hydraulic checks apply.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS diagnosis guide · DQ250, pages 50–51
    P1735 / P17350062

    DQ380 / DQ381 / DQ500

    Clutch 1 position/pressure feedback: electrical malfunction

    Function monitored

    Checks the feedback circuit for clutch 1 in documented wet-clutch Bosch mechatronic variants.

    Speed, temperature and position feedback allow the controller to compare its command with what the gearbox actually does. A missing, electrically faulty or implausible signal can interrupt shifting even if the clutch itself is still usable.

    Scan-tool text

    Clutch 1 position/pressure feedback: electrical malfunction

    DQ380/DQ381 reference is linked; DQ500 is also documented in Eco Torque's DQ500 guide. These scan descriptions can say 'position sender' although the relevant assembly uses pressure/displacement feedback. It is not a clutch-pedal sensor.

    Reported symptoms / notes

    Warning lights, limp mode, erratic engagement or loss of one set of gears may occur. A temperature-monitoring code does not by itself prove genuine overheating.

    Possible causes · not a diagnosis

    • A sensor or its internal signal-processing circuit may be faulty.
    • Connector, harness, supply or ground trouble.
    • Contamination, mechanical wear or a displaced sensor target can make a healthy sensor report an unexpected value.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Identify the named sensor from the complete controller-specific description; similar code numbers do not guarantee identical hardware.
    2. Check electrical integrity and compare the affected live reading against related speed, pressure, position or temperature readings.
    3. Inspect contamination and mechanical targets when the repair procedure calls for it; investigate the source of any metal debris.

    Possible repair direction

    Correct the confirmed wiring, target or sensor fault. Some sensors are integrated into the TCU; whether specialist repair or replacement is suitable depends on the unit and test results, not the DTC alone.

    Maintenance / prevention

    Maintain the correct fluid and filter where specified, protect connectors from moisture and address warnings early. A fluid change cannot restore a failed electronic sensor.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ380 / DQ381 clutch sensors
    P1736 / P17360063

    DQ380 / DQ381 / DQ500

    Clutch 2 position/pressure feedback: electrical malfunction

    Function monitored

    Checks the feedback circuit for clutch 2 in documented wet-clutch Bosch mechatronic variants.

    Speed, temperature and position feedback allow the controller to compare its command with what the gearbox actually does. A missing, electrically faulty or implausible signal can interrupt shifting even if the clutch itself is still usable.

    Scan-tool text

    Clutch 2 position/pressure feedback: electrical malfunction

    Loss of one clutch path may leave only a subset of gears. A sensor DTC does not by itself show that the friction pack is worn; compare actual feedback and clutch operation.

    Reported symptoms / notes

    Warning lights, limp mode, erratic engagement or loss of one set of gears may occur. A temperature-monitoring code does not by itself prove genuine overheating.

    Possible causes · not a diagnosis

    • A sensor or its internal signal-processing circuit may be faulty.
    • Connector, harness, supply or ground trouble.
    • Contamination, mechanical wear or a displaced sensor target can make a healthy sensor report an unexpected value.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Identify the named sensor from the complete controller-specific description; similar code numbers do not guarantee identical hardware.
    2. Check electrical integrity and compare the affected live reading against related speed, pressure, position or temperature readings.
    3. Inspect contamination and mechanical targets when the repair procedure calls for it; investigate the source of any metal debris.

    Possible repair direction

    Correct the confirmed wiring, target or sensor fault. Some sensors are integrated into the TCU; whether specialist repair or replacement is suitable depends on the unit and test results, not the DTC alone.

    Maintenance / prevention

    Maintain the correct fluid and filter where specified, protect connectors from moisture and address warnings early. A fluid change cannot restore a failed electronic sensor.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ380 / DQ381 clutch sensors
    P080564

    DQ380 / DQ381

    Clutch position sensor circuit fault

    Function monitored

    Monitors the clutch position-feedback circuit in the documented DQ380 / DQ381 Bosch TCU application.

    Speed, temperature and position feedback allow the controller to compare its command with what the gearbox actually does. A missing, electrically faulty or implausible signal can interrupt shifting even if the clutch itself is still usable.

    Scan-tool text

    Clutch position sensor circuit fault

    The linked reference lists this fault for those units. Read the full controller text to identify the specific feedback path; do not mistake it for a manual-transmission clutch-pedal switch.

    Reported symptoms / notes

    Warning lights, limp mode, erratic engagement or loss of one set of gears may occur. A temperature-monitoring code does not by itself prove genuine overheating.

    Possible causes · not a diagnosis

    • A sensor or its internal signal-processing circuit may be faulty.
    • Connector, harness, supply or ground trouble.
    • Contamination, mechanical wear or a displaced sensor target can make a healthy sensor report an unexpected value.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Identify the named sensor from the complete controller-specific description; similar code numbers do not guarantee identical hardware.
    2. Check electrical integrity and compare the affected live reading against related speed, pressure, position or temperature readings.
    3. Inspect contamination and mechanical targets when the repair procedure calls for it; investigate the source of any metal debris.

    Possible repair direction

    Correct the confirmed wiring, target or sensor fault. Some sensors are integrated into the TCU; whether specialist repair or replacement is suitable depends on the unit and test results, not the DTC alone.

    Maintenance / prevention

    Maintain the correct fluid and filter where specified, protect connectors from moisture and address warnings early. A fluid change cannot restore a failed electronic sensor.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    ACTRONICS · DQ380 / DQ381 Bosch TCU
    P0607 / P06070065

    DQ500

    Control-module performance / implausibility fault

    Function monitored

    Monitors internal control-module performance and plausibility.

    The TCM needs stable power, ground and network communication. Low voltage or lost communication can create several misleading secondary codes and must be resolved before internal components are condemned.

    Scan-tool text

    Control-module performance / implausibility fault

    Documented for DQ500 controllers in the linked reference. Do not transfer this definition to a different gearbox solely because the base code matches.

    Reported symptoms / notes

    No TCM communication, intermittent warnings, limp mode or a no-start condition can occur. Not every stored low-voltage event means the mechatronic has failed.

    Possible causes · not a diagnosis

    • Weak battery, charging or supply-circuit trouble.
    • Fuse, ground, connector or CAN-network fault.
    • An internal control-unit defect, software issue or water ingress.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Check the full vehicle scan and timing of faults; recent battery discharge or work may be relevant.
    2. Test battery/charging performance, voltage at the TCM and ground integrity under the specified conditions.
    3. For communication faults, verify network and supply integrity before testing the module itself.

    Possible repair direction

    Correct the confirmed supply, ground, harness or network problem. Internal TCU repair or replacement is considered only after these checks; replacement may require authorised software, coding and adaptations.

    Maintenance / prevention

    Maintain a healthy battery and secure connections. Repeated fuse failure requires diagnosis, not repeated replacement. Never fit a larger fuse or bypass a protection circuit.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ500 reference
    P179C / P179C0066

    DQ500

    Main-pressure valve: electrical malfunction

    Function monitored

    Checks the electrical control path for the main hydraulic-pressure valve.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Main-pressure valve: electrical malfunction

    Documented for DQ500 controllers in the linked reference. Do not transfer this definition to a different gearbox solely because the base code matches.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ500 reference
    P2716 / P27160067

    DQ500

    Pressure-control valve 4: electrical malfunction

    Function monitored

    Checks the circuit for pressure-control valve 4.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Pressure-control valve 4: electrical malfunction

    Documented for DQ500 controllers in the linked reference. Do not transfer this definition to a different gearbox solely because the base code matches.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ500 reference
    P175D68

    DQ500

    Clutch 1 opens unintentionally

    Function monitored

    Compares commanded clutch 1 operation with feedback to detect an unintended release.

    The two clutch paths transfer torque in a controlled overlap. Feedback, pressure and learned engagement values help the controller manage slip and identify a clutch that opens, closes or travels beyond its expected limits.

    Scan-tool text

    Clutch 1 opens unintentionally

    Documented for DQ500 controllers in the linked reference. Do not transfer this definition to a different gearbox solely because the base code matches.

    Reported symptoms / notes

    Judder, engine-speed flare, delayed engagement, harsh shifts or loss of odd/even gears may be noticed. Unintended clutch operation is not safe to test on public roads.

    Possible causes · not a diagnosis

    • Clutch wear, incorrect adjustment or an installation problem.
    • Hydraulic regulation or an internal valve fault.
    • Incorrect feedback or control-unit/software trouble; a clutch code can be secondary to another fault.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Assess the complete fault set, gearbox identity, temperatures and supply before interpreting clutch wear.
    2. Compare requested and measured clutch operation, slip and adaptation values with the fitted gearbox's limits.
    3. Check relevant manufacturer software/bulletin applicability and inspect mechanical condition before prescribing a clutch pack.

    Possible repair direction

    A confirmed worn clutch may need replacement and specified setup. Hydraulic, feedback, installation or software faults need their own correction; resetting adaptations is not a substitute for repair.

    Maintenance / prevention

    Avoid holding the car on an incline with the accelerator and prolonged inching that slips the clutch. Follow vehicle-specific fluid/filter servicing for wet-clutch units and investigate new judder or burning smells.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ500 reference
    P175E69

    DQ500

    Clutch 1 closes unintentionally

    Function monitored

    Compares commanded clutch 1 operation with feedback to detect an unintended engagement.

    The two clutch paths transfer torque in a controlled overlap. Feedback, pressure and learned engagement values help the controller manage slip and identify a clutch that opens, closes or travels beyond its expected limits.

    Scan-tool text

    Clutch 1 closes unintentionally

    Documented for DQ500 controllers in the linked reference. Do not transfer this definition to a different gearbox solely because the base code matches.

    Reported symptoms / notes

    Judder, engine-speed flare, delayed engagement, harsh shifts or loss of odd/even gears may be noticed. Unintended clutch operation is not safe to test on public roads.

    Possible causes · not a diagnosis

    • Clutch wear, incorrect adjustment or an installation problem.
    • Hydraulic regulation or an internal valve fault.
    • Incorrect feedback or control-unit/software trouble; a clutch code can be secondary to another fault.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Assess the complete fault set, gearbox identity, temperatures and supply before interpreting clutch wear.
    2. Compare requested and measured clutch operation, slip and adaptation values with the fitted gearbox's limits.
    3. Check relevant manufacturer software/bulletin applicability and inspect mechanical condition before prescribing a clutch pack.

    Possible repair direction

    A confirmed worn clutch may need replacement and specified setup. Hydraulic, feedback, installation or software faults need their own correction; resetting adaptations is not a substitute for repair.

    Maintenance / prevention

    Avoid holding the car on an incline with the accelerator and prolonged inching that slips the clutch. Follow vehicle-specific fluid/filter servicing for wet-clutch units and investigate new judder or burning smells.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ500 reference
    P176E70

    DQ500

    Clutch 2 opens unintentionally

    Function monitored

    Compares commanded clutch 2 operation with feedback to detect an unintended release.

    The two clutch paths transfer torque in a controlled overlap. Feedback, pressure and learned engagement values help the controller manage slip and identify a clutch that opens, closes or travels beyond its expected limits.

    Scan-tool text

    Clutch 2 opens unintentionally

    Documented for DQ500 controllers in the linked reference. Do not transfer this definition to a different gearbox solely because the base code matches.

    Reported symptoms / notes

    Judder, engine-speed flare, delayed engagement, harsh shifts or loss of odd/even gears may be noticed. Unintended clutch operation is not safe to test on public roads.

    Possible causes · not a diagnosis

    • Clutch wear, incorrect adjustment or an installation problem.
    • Hydraulic regulation or an internal valve fault.
    • Incorrect feedback or control-unit/software trouble; a clutch code can be secondary to another fault.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Assess the complete fault set, gearbox identity, temperatures and supply before interpreting clutch wear.
    2. Compare requested and measured clutch operation, slip and adaptation values with the fitted gearbox's limits.
    3. Check relevant manufacturer software/bulletin applicability and inspect mechanical condition before prescribing a clutch pack.

    Possible repair direction

    A confirmed worn clutch may need replacement and specified setup. Hydraulic, feedback, installation or software faults need their own correction; resetting adaptations is not a substitute for repair.

    Maintenance / prevention

    Avoid holding the car on an incline with the accelerator and prolonged inching that slips the clutch. Follow vehicle-specific fluid/filter servicing for wet-clutch units and investigate new judder or burning smells.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ500 reference
    P176F71

    DQ500

    Clutch 2 closes unintentionally

    Function monitored

    Compares commanded clutch 2 operation with feedback to detect an unintended engagement.

    The two clutch paths transfer torque in a controlled overlap. Feedback, pressure and learned engagement values help the controller manage slip and identify a clutch that opens, closes or travels beyond its expected limits.

    Scan-tool text

    Clutch 2 closes unintentionally

    Documented for DQ500 controllers in the linked reference. Do not transfer this definition to a different gearbox solely because the base code matches.

    Reported symptoms / notes

    Judder, engine-speed flare, delayed engagement, harsh shifts or loss of odd/even gears may be noticed. Unintended clutch operation is not safe to test on public roads.

    Possible causes · not a diagnosis

    • Clutch wear, incorrect adjustment or an installation problem.
    • Hydraulic regulation or an internal valve fault.
    • Incorrect feedback or control-unit/software trouble; a clutch code can be secondary to another fault.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Assess the complete fault set, gearbox identity, temperatures and supply before interpreting clutch wear.
    2. Compare requested and measured clutch operation, slip and adaptation values with the fitted gearbox's limits.
    3. Check relevant manufacturer software/bulletin applicability and inspect mechanical condition before prescribing a clutch pack.

    Possible repair direction

    A confirmed worn clutch may need replacement and specified setup. Hydraulic, feedback, installation or software faults need their own correction; resetting adaptations is not a substitute for repair.

    Maintenance / prevention

    Avoid holding the car on an incline with the accelerator and prolonged inching that slips the clutch. Follow vehicle-specific fluid/filter servicing for wet-clutch units and investigate new judder or burning smells.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ500 reference
    P176A72

    DQ500

    Gear selector 1 cannot be regulated

    Function monitored

    Checks whether selector actuator 1 follows its commanded position; this is not necessarily a fault in road gear 1.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    Gear selector 1 cannot be regulated

    Documented for DQ500 controllers in the linked reference. Do not transfer this definition to a different gearbox solely because the base code matches.

    Reported symptoms / notes

    A gear may be unavailable, the gearbox may drop into neutral, or only a reduced set of gears may remain. Scan-tool wording can describe 'stuck', 'not selectable' or 'not adjustable' depending on the controller.

    Possible causes · not a diagnosis

    • Hydraulic actuation or selector-position feedback trouble.
    • Fork, synchroniser, shaft or other internal mechanical wear.
    • Incorrect installation, alignment or incomplete settings after previous work.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ500 reference
    P176B73

    DQ500

    Gear selector 2 cannot be regulated

    Function monitored

    Checks whether selector actuator 2 follows its commanded position; this is not necessarily a fault in road gear 2.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    Gear selector 2 cannot be regulated

    Documented for DQ500 controllers in the linked reference. Do not transfer this definition to a different gearbox solely because the base code matches.

    Reported symptoms / notes

    A gear may be unavailable, the gearbox may drop into neutral, or only a reduced set of gears may remain. Scan-tool wording can describe 'stuck', 'not selectable' or 'not adjustable' depending on the controller.

    Possible causes · not a diagnosis

    • Hydraulic actuation or selector-position feedback trouble.
    • Fork, synchroniser, shaft or other internal mechanical wear.
    • Incorrect installation, alignment or incomplete settings after previous work.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ500 reference
    P176C74

    DQ500

    Gear selector 3 cannot be regulated

    Function monitored

    Checks whether selector actuator 3 follows its commanded position; this is not necessarily a fault in road gear 3.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    Gear selector 3 cannot be regulated

    Documented for DQ500 controllers in the linked reference. Do not transfer this definition to a different gearbox solely because the base code matches.

    Reported symptoms / notes

    A gear may be unavailable, the gearbox may drop into neutral, or only a reduced set of gears may remain. Scan-tool wording can describe 'stuck', 'not selectable' or 'not adjustable' depending on the controller.

    Possible causes · not a diagnosis

    • Hydraulic actuation or selector-position feedback trouble.
    • Fork, synchroniser, shaft or other internal mechanical wear.
    • Incorrect installation, alignment or incomplete settings after previous work.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ500 reference
    P176D75

    DQ500

    Gear selector 4 cannot be regulated

    Function monitored

    Checks whether selector actuator 4 follows its commanded position; this is not necessarily a fault in road gear 4.

    Selector actuators move the forks and engage the required ratio. Position and shaft-speed readings let the controller confirm that a command has produced the correct gear and that it remains engaged.

    Scan-tool text

    Gear selector 4 cannot be regulated

    Documented for DQ500 controllers in the linked reference. Do not transfer this definition to a different gearbox solely because the base code matches.

    Reported symptoms / notes

    A gear may be unavailable, the gearbox may drop into neutral, or only a reduced set of gears may remain. Scan-tool wording can describe 'stuck', 'not selectable' or 'not adjustable' depending on the controller.

    Possible causes · not a diagnosis

    • Hydraulic actuation or selector-position feedback trouble.
    • Fork, synchroniser, shaft or other internal mechanical wear.
    • Incorrect installation, alignment or incomplete settings after previous work.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Record when the fault appeared, especially whether it started immediately after clutch or mechatronic work.
    2. Compare requested gear, measured selector position and input/output speed signals, and assess related pressure faults first.
    3. Inspect the relevant fork, actuator engagement and mechanical condition only after non-invasive checks and vehicle-specific procedures.

    Possible repair direction

    Possible outcomes include correcting installation or hydraulic/sensor faults, repairing mechanical damage, or completing supported settings after the cause is fixed. Do not replace a whole gearbox solely because one gear-selection code is stored.

    Maintenance / prevention

    Correct assembly and setup matter as much as maintenance. Investigate missed shifts early and never force the selector or repeatedly try to engage a gear after drive has been lost.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ500 reference
    P0715 / 17099 / P07150076

    DQ250 / DQ500

    Transmission input-speed sensor: electrical fault

    Function monitored

    Monitors input-speed feedback used for gear and clutch control.

    Speed, temperature and position feedback allow the controller to compare its command with what the gearbox actually does. A missing, electrically faulty or implausible signal can interrupt shifting even if the clutch itself is still usable.

    Scan-tool text

    Transmission input-speed sensor: electrical fault

    Eco Torque documents input sensor 1 on DQ500; the ACTRONICS DQ250 guide identifies G182 for its application. Sensor identifiers and wiring must be confirmed from the fitted controller.

    Reported symptoms / notes

    Warning lights, limp mode, erratic engagement or loss of one set of gears may occur. A temperature-monitoring code does not by itself prove genuine overheating.

    Possible causes · not a diagnosis

    • A sensor or its internal signal-processing circuit may be faulty.
    • Connector, harness, supply or ground trouble.
    • Contamination, mechanical wear or a displaced sensor target can make a healthy sensor report an unexpected value.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Identify the named sensor from the complete controller-specific description; similar code numbers do not guarantee identical hardware.
    2. Check electrical integrity and compare the affected live reading against related speed, pressure, position or temperature readings.
    3. Inspect contamination and mechanical targets when the repair procedure calls for it; investigate the source of any metal debris.

    Possible repair direction

    Correct the confirmed wiring, target or sensor fault. Some sensors are integrated into the TCU; whether specialist repair or replacement is suitable depends on the unit and test results, not the DTC alone.

    Maintenance / prevention

    Maintain the correct fluid and filter where specified, protect connectors from moisture and address warnings early. A fluid change cannot restore a failed electronic sensor.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ500 reference
    P2765 / P27650077

    DQ500

    Transmission input-speed sensor 2: electrical fault

    Function monitored

    Monitors the second input-speed sensor circuit used to supervise the second clutch/shaft path.

    Speed, temperature and position feedback allow the controller to compare its command with what the gearbox actually does. A missing, electrically faulty or implausible signal can interrupt shifting even if the clutch itself is still usable.

    Scan-tool text

    Transmission input-speed sensor 2: electrical fault

    Documented for DQ500 controllers in the linked reference. Do not transfer this definition to a different gearbox solely because the base code matches.

    Reported symptoms / notes

    Warning lights, limp mode, erratic engagement or loss of one set of gears may occur. A temperature-monitoring code does not by itself prove genuine overheating.

    Possible causes · not a diagnosis

    • A sensor or its internal signal-processing circuit may be faulty.
    • Connector, harness, supply or ground trouble.
    • Contamination, mechanical wear or a displaced sensor target can make a healthy sensor report an unexpected value.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Identify the named sensor from the complete controller-specific description; similar code numbers do not guarantee identical hardware.
    2. Check electrical integrity and compare the affected live reading against related speed, pressure, position or temperature readings.
    3. Inspect contamination and mechanical targets when the repair procedure calls for it; investigate the source of any metal debris.

    Possible repair direction

    Correct the confirmed wiring, target or sensor fault. Some sensors are integrated into the TCU; whether specialist repair or replacement is suitable depends on the unit and test results, not the DTC alone.

    Maintenance / prevention

    Maintain the correct fluid and filter where specified, protect connectors from moisture and address warnings early. A fluid change cannot restore a failed electronic sensor.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ500 reference
    P173E78

    DQ500

    Valve 1 in partial transmission 1: electrical malfunction

    Function monitored

    Checks the circuit controlling valve 1 in gearbox half 1. Half numbering identifies a hydraulic path, not a road gear number.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Valve 1 in partial transmission 1: electrical malfunction

    Documented for DQ500 controllers in the linked reference. Do not transfer this definition to a different gearbox solely because the base code matches.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ500 reference
    P173F79

    DQ500

    Valve 2 in partial transmission 1: electrical malfunction

    Function monitored

    Checks the circuit controlling valve 2 in gearbox half 1. Half numbering identifies a hydraulic path, not a road gear number.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Valve 2 in partial transmission 1: electrical malfunction

    Documented for DQ500 controllers in the linked reference. Do not transfer this definition to a different gearbox solely because the base code matches.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ500 reference
    P174A80

    DQ500

    Valve 3 in partial transmission 1: electrical malfunction

    Function monitored

    Checks the circuit controlling valve 3 in gearbox half 1. Half numbering identifies a hydraulic path, not a road gear number.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Valve 3 in partial transmission 1: electrical malfunction

    Documented for DQ500 controllers in the linked reference. Do not transfer this definition to a different gearbox solely because the base code matches.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ500 reference
    P174C81

    DQ500

    Valve 1 in partial transmission 2: electrical malfunction

    Function monitored

    Checks the circuit controlling valve 1 in gearbox half 2. Half numbering identifies a hydraulic path, not a road gear number.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Valve 1 in partial transmission 2: electrical malfunction

    Documented for DQ500 controllers in the linked reference. Do not transfer this definition to a different gearbox solely because the base code matches.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ500 reference
    P174D82

    DQ500

    Valve 2 in partial transmission 2: electrical malfunction

    Function monitored

    Checks the circuit controlling valve 2 in gearbox half 2. Half numbering identifies a hydraulic path, not a road gear number.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Valve 2 in partial transmission 2: electrical malfunction

    Documented for DQ500 controllers in the linked reference. Do not transfer this definition to a different gearbox solely because the base code matches.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ500 reference
    P174E83

    DQ500

    Valve 3 in partial transmission 2: electrical malfunction

    Function monitored

    Checks the circuit controlling valve 3 in gearbox half 2. Half numbering identifies a hydraulic path, not a road gear number.

    The controller drives electromagnetic valves that route or regulate oil pressure. Electrical circuit faults and failure to achieve the requested hydraulic response are different diagnoses, even when both produce harsh shifts.

    Scan-tool text

    Valve 3 in partial transmission 2: electrical malfunction

    Documented for DQ500 controllers in the linked reference. Do not transfer this definition to a different gearbox solely because the base code matches.

    Reported symptoms / notes

    Harsh or delayed shifts, missing gears, a transmission warning or limp mode may occur. Several simultaneous valve codes can indicate a shared supply issue rather than several failed solenoids.

    Possible causes · not a diagnosis

    • Open circuit, short circuit or poor connection in the named valve circuit.
    • A valve winding or internal TCU driver fault.
    • For performance faults, sticking valves, contamination, wear or pressure loss may be relevant.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Use the full scan text to distinguish electrical interruption/short circuit from performance or regulation failure.
    2. Check the named circuit and shared supply using the correct wiring diagram and specified test conditions.
    3. If electrical checks pass, assess commanded valve behaviour and hydraulic response before condemning the valve body.

    Possible repair direction

    Repair a proven connection or circuit fault first. Confirmed valve/driver faults may require approved component repair, mechatronic rebuild or replacement followed by correct fluid handling and setup.

    Maintenance / prevention

    Use specified oil and filter servicing; preserve cleanliness during internal work. Do not apply battery voltage to solenoids as a DIY test or fit a higher-rated fuse.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Eco Torque · DQ500 reference
    P0C2984

    DQ381

    Auxiliary transmission-oil pump activation implausible

    Function monitored

    Checks auxiliary hydraulic-pump operation in the documented 0GC application.

    Hydraulic pressure moves the selector actuators and operates the clutches. The controller compares requested pressure with measured pressure and restricts operation when it cannot build, retain or plausibly measure it.

    Scan-tool text

    Auxiliary transmission-oil pump activation implausible

    The cited US bulletin applies to specified 2018 Golf R vehicles after Service Action 34K1, with VIN restrictions. It is not an India-wide repair instruction or proof that every 0GC pump needs replacement. Confirm exact vehicle, market and service history.

    Reported symptoms / notes

    Flashing gear display, delayed engagement, repeated pump operation, limp mode or no drive can occur; symptoms depend on the controller and fault severity.

    Possible causes · not a diagnosis

    • Internal hydraulic leakage or a pressure accumulator / valve-body problem.
    • Pump, pump supply or control-circuit trouble.
    • A pressure-feedback fault; fluid level or condition where relevant to the fitted unit.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Save the complete TCM scan, freeze frame and supply-voltage readings before clearing anything.
    2. Compare requested and actual pressure, build-up behaviour and pressure retention using the procedure for the identified gearbox.
    3. Check power supply and external leakage before deciding whether the pump, accumulator, valve body or sensor is responsible.

    Possible repair direction

    Repair only a confirmed leak, supply fault or failed component. An approved rebuild or replacement may be appropriate if testing proves internal damage; correct fluid handling and vehicle-specific setup follow the repair.

    Maintenance / prevention

    Use the exact fluid specification and service schedule for the gearbox code. Investigate early pressure warnings; repeated ignition cycling does not repair a leak. DQ200 mechatronics fluid is not interchangeable with wet-clutch transmission oil.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Volkswagen bulletin 37-23-01 · limited vehicle applicability
    P081085

    DQ381

    Clutch position/control malfunction

    Function monitored

    Checks whether commanded clutch operation is achieved.

    The two clutch paths transfer torque in a controlled overlap. Feedback, pressure and learned engagement values help the controller manage slip and identify a clutch that opens, closes or travels beyond its expected limits.

    Scan-tool text

    Clutch position/control malfunction

    The cited bulletin documents this as a possible consequential code with P0C29 on a limited 2018 Golf R population. Use the controller-specific description and current manufacturer information for any other vehicle.

    Reported symptoms / notes

    Judder, engine-speed flare, delayed engagement, harsh shifts or loss of odd/even gears may be noticed. Unintended clutch operation is not safe to test on public roads.

    Possible causes · not a diagnosis

    • Clutch wear, incorrect adjustment or an installation problem.
    • Hydraulic regulation or an internal valve fault.
    • Incorrect feedback or control-unit/software trouble; a clutch code can be secondary to another fault.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Assess the complete fault set, gearbox identity, temperatures and supply before interpreting clutch wear.
    2. Compare requested and measured clutch operation, slip and adaptation values with the fitted gearbox's limits.
    3. Check relevant manufacturer software/bulletin applicability and inspect mechanical condition before prescribing a clutch pack.

    Possible repair direction

    A confirmed worn clutch may need replacement and specified setup. Hydraulic, feedback, installation or software faults need their own correction; resetting adaptations is not a substitute for repair.

    Maintenance / prevention

    Avoid holding the car on an incline with the accelerator and prolonged inching that slips the clutch. Follow vehicle-specific fluid/filter servicing for wet-clutch units and investigate new judder or burning smells.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Volkswagen bulletin 37-23-01 · limited vehicle applicability
    P189986

    DQ381

    Clutch 2 function restriction

    Function monitored

    Reports a restriction in the clutch 2 operating path on the documented controller.

    The two clutch paths transfer torque in a controlled overlap. Feedback, pressure and learned engagement values help the controller manage slip and identify a clutch that opens, closes or travels beyond its expected limits.

    Scan-tool text

    Clutch 2 function restriction

    Documented as a possible consequential code with P0C29 in the limited 0GC bulletin. A related fault may be an effect of the main problem rather than a separate clutch failure.

    Reported symptoms / notes

    Judder, engine-speed flare, delayed engagement, harsh shifts or loss of odd/even gears may be noticed. Unintended clutch operation is not safe to test on public roads.

    Possible causes · not a diagnosis

    • Clutch wear, incorrect adjustment or an installation problem.
    • Hydraulic regulation or an internal valve fault.
    • Incorrect feedback or control-unit/software trouble; a clutch code can be secondary to another fault.

    A DTC by itself does not prove that any part has failed.

    How a technician investigates it

    1. Assess the complete fault set, gearbox identity, temperatures and supply before interpreting clutch wear.
    2. Compare requested and measured clutch operation, slip and adaptation values with the fitted gearbox's limits.
    3. Check relevant manufacturer software/bulletin applicability and inspect mechanical condition before prescribing a clutch pack.

    Possible repair direction

    A confirmed worn clutch may need replacement and specified setup. Hydraulic, feedback, installation or software faults need their own correction; resetting adaptations is not a substitute for repair.

    Maintenance / prevention

    Avoid holding the car on an incline with the accelerator and prolonged inching that slips the clutch. Follow vehicle-specific fluid/filter servicing for wet-clutch units and investigate new judder or burning smells.

    Sensible next step

    Preserve the complete scan. If drive is lost, shifting is severe, or there is overheating, smoke or leakage, stop safely and arrange professional recovery. Otherwise contact the workshop for assessment before continuing your journey.

    Volkswagen bulletin 37-23-01 · limited vehicle applicability

    Red warnings, loss of drive, overheating, a leak, smoke or severe shift behavior? Stop safely and arrange professional recovery—do not drive through these signs. For other concerns, share the full scan and vehicle details for proper assessment.

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    Sources linked per entry: Ross-Tech, ACTRONICS, Eco Torque and the specified Volkswagen bulletin. This is an educational reference, not manufacturer repair instructions or a guarantee of all controller-supported codes. Confirm the complete scan text, gearbox, software and vehicle applicability. Additional P/U-code suffixes can change the fault context.