P0902
PowertrainTransmission Dcthigh severityClutch Actuator Circuit Low
What P0902 Means
The PCM detected a low voltage condition in the clutch actuator control circuit. This can cause improper or failed clutch engagement.
Symptoms
- Failed or weak clutch engagement
- Stalling when stopping
- Transmission warning light
Common Causes
- Short to ground in actuator circuit
- Faulty clutch actuator
- Damaged wiring or connector
- PCM/TCM driver fault
Diagnostic Steps
- Scan for codes and freeze frame data
- Check actuator circuit for short to ground
- Inspect connector and wiring condition
- Test actuator and control module output
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Any of these will read and clear this code — pick by how deep you want to go.
Budget handheld~$40
ANCEL AD410 →
No-phone-needed handheld — reads, clears, live data, freeze frame.
✓ ANCEL official store
Serious DIY~$100
BlueDriver Pro →
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Autel MaxiCOM MK808S →
Bidirectional tests, service resets, all systems.
✓ Autel official store
Pro diagnostics$1,500+
Autel MaxiSys MS906 Pro →
Full-system pro platform — topology mapping, ECU coding, the works.
✓ Autel official store
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