Powertrain
generic / SAE
P0900
Clutch Actuator Circuit/Open
The TCM detects an open circuit at the clutch actuator output. Used on automated manual or dual-clutch transmissions.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number9 / 00
Possible causes
- Actuator winding open high
- Wiring break medium
- Pin pushed back out of connector body low
Symptoms
- Check engine or transmission warning light on
- Harsh, delayed, or missing shifts
- Possible limp mode (locked in one gear)
- Slipping or shuddering during gear changes
Inspection / repair
- Difficulty: shop only
- DIY: shop recommended
- Estimated cost: 400–2500 €
- Estimated time: 2–8 h
- Component: clutch actuator
- Component: wiring harness
- Component: tcm
- MIL / check engine light
Sources
References
sae:J2012