P0925
Gear Shift Reverse Actuator Circuit Range/Performance
Transmission controls
Generic OBD-II
Medium
What it means
P0925 indicates a range/performance problem in the circuit that controls the gear-shift reverse actuator on an automated transmission. It typically shows up as difficulty engaging reverse, while forward gears often still work. The actuator, its wiring, or connectors are the usual causes rather than internal transmission damage. The engine starts and runs normally.
Medium
Can I keep driving? Forward driving is usually fine, but engaging reverse may be difficult or fail — get it checked soon.
Common symptoms
What you'll notice
- Check-engine light on
- Difficulty engaging reverse
- Delayed or erratic shifting
- Transmission may enter limp mode
Common causes
Most likely first
- Faulty gear shift reverse actuatorLikely
- Wiring or connector fault in the actuator circuitCommon
- Loose or corroded electrical connectionsCommon
- Poor groundLess often
- Faulty transmission control module (TCM) — least likelyLess often
How to diagnose & fix
Work through it in order
- Confirm the code and inspect the reverse actuator and its connector.
- Check the circuit wiring and ground for damage or corrosion.
- Test the actuator's operation and circuit against spec.
- Replace the reverse actuator if confirmed faulty.
- If the actuator is good, have the TCM evaluated. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P0925?+
The engine and forward gears usually work, but reverse may be hard to engage or unavailable. Get it checked soon so you're not left unable to back up.
Can I just clear P0925?+
It returns until the reverse actuator or its wiring is repaired.
Related codes
Often seen with P0925
Read & clear P0925 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX