OBD-II code · Powertrain (generic)
P0927 Gear Shift Reverse Actuator Circuit High
The gear shift reverse actuator reports a circuit high 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.
Is it safe to drive with P0927?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyActuator fault
- PossibleWiring fault
- Less likelyConnector pins corroded - high contact resistance
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
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 2–7 h
- Emissions test
- Usually unaffected
- Parts involved
- Gear Shift Reverse Actuator, Wiring Harness, Tcm
Related codes
- P0924Gear Shift Reverse Actuator Circuit/Open
- P0925Gear Shift Reverse Actuator Circuit/Open
- P0926Gear Shift Reverse Actuator Circuit Low
- P0928Gear Shift Lock Solenoid/Actuator Control Circuit A/Open
- P0929Gear Shift Lock Solenoid/Actuator Control Circuit A Range/Performance
- P092AGear Shift Lock Solenoid/Actuator Control Circuit B/Open
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.