Powertrain
generic / SAE
P0903
Clutch Actuator Circuit High
Voltage on the clutch actuator control circuit is above threshold, indicating short to battery or open driver.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number9 / 03
Possible causes
- Short to battery high
- Open driver circuit medium
- Connector pins corroded - high contact resistance 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