Powertrain
generic / SAE
P0926
Gear Shift Reverse Actuator Circuit Low
The gear shift reverse actuator reports a circuit low fault. Reverse gear engagement is impaired. Wiring faults of this kind typically come from chafing, water ingress at connector seals, or pin push-back — a wiggle test on the harness while the code is active often confirms the location.
SystemPowertrain
Typegeneric / SAE
GroupP0
Range / number9 / 26
Possible causes
- Actuator fault high
- Wiring fault 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: hard
- DIY: shop recommended
- Estimated cost: 400–2000 €
- Estimated time: 2–7 h
- Component: gear shift reverse actuator
- Component: wiring harness
- Component: tcm
- MIL / check engine light
- limp mode possible
Sources
References
sae:J2012