OBD-II code · Powertrain (generic)
P0929 Gear Shift Lock Solenoid/Actuator Control Circuit A Range/Performance
The gear shift lock solenoid/actuator control circuit A reports a control circuit a range/performance condition. Selector lever interlock cannot be commanded reliably.
Is it safe to drive with P0929?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyActuator response slow
- PossibleHigh-resistance contact
- Less likelySensor element aged beyond calibration window
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
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–3 h
- Emissions test
- Usually unaffected
- Parts involved
- Gear Shift Lock Solenoid A, Wiring Harness, Tcm
Related codes
- P092BGear Shift Lock Solenoid/Actuator Control Circuit B Range/Performance
- P0926Gear Shift Reverse Actuator Circuit Low
- P0927Gear Shift Reverse Actuator Circuit High
- P0928Gear Shift Lock Solenoid/Actuator Control Circuit A/Open
- P092AGear Shift Lock Solenoid/Actuator Control Circuit B/Open
- P092CGear Shift Lock Solenoid/Actuator Control Circuit B Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.