Powertrain
generic / SAE
P0925
Gear Shift Reverse Actuator Circuit/Open
Open circuit at the reverse shift actuator on automated manual transmissions.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number9 / 25
Possible causes
- Actuator open winding 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: 400–2000 €
- Estimated time: 2–8 h
- Component: shift actuator reverse
- Component: wiring harness
- MIL / check engine light
Sources
References
sae:J2012