DTC code
P0902
Clutch A Actuator Control Circuit Low
Technical guide
Symptoms
- Illuminated check engine light
- shift quality changes
- vehicle may enter limp mode
- non-engagement of any gear
- in some cases the engine may stall if the control system fails while driving.
Probable causes
- 1) Failed clutch actuator (most common cause). 2) Defective clutch actuator motor or stuck actuator. 3) Faulty clutch pedal position (CPP) sensor. 4) Short or open circuit in the clutch actuator wiring harness. 5) Corroded or loose ground connections — a leading cause
- creating voltage drops that mimic component failure even when the TCM and actuator are functional.
Diagnostic steps
- Scan for P0902 and any related transmission codes; record freeze frame data.
- Locate all components of the clutch actuator circuit and check for obvious physical damage.
- Perform a thorough visual inspection of the wiring for scraping, rubbing, bare wires, or burn spots.
- Check all connectors and connections — to sensors, solenoids, actuators, and control modules — for security, corrosion, and damaged pins.
- Inspect and clean ground connections in the circuit, since corroded or loose grounds are a leading cause of this code.
- Test the clutch actuator and its motor; replace the actuator if it has failed.
- If circuit and actuator test good, evaluate the clutch pedal position sensor. This code is considered serious — if the required tools or experience are lacking, refer to a professional technician.
Cross-checked technical synthesis (QA). It does not replace the manufacturer's procedure.
Models most reported with this code (NHTSA)
Count of distinct owner complaints mentioning the code. US data — same engines, same failures.
AI here is a librarian: this page shows only what mechanics confirmed, or says “unknown”. It never suggests a diagnosis — MECCANIC interprets the code, never your car.
0 confirmed cases on P0902
Nothing confirmed yet for this code. No guess is offered on purpose.
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