Gear Shift Forward Actuator Circuit Low
What it means
P0922 means the control circuit for the gear-shift forward actuator reads an abnormally low voltage. On an automated-manual transmission this actuator physically engages the forward gears. The engine still starts, but if it can't be driven the transmission may fail to shift or the car may not move forward at all. Because that can leave you stranded, it's worth diagnosing the wiring and actuator without delay.
Can I keep driving? The engine starts, but on an automated-manual gearbox this actuator engages forward gears — if it can't operate the car may not shift or may not move, so get it checked promptly.
Common symptoms
What you'll notice
- Check-engine light on
- Transmission won't shift up or down properly
- Car may not move in a forward gear
- Rough or incomplete shifts
Common causes
Most likely first
- Open or short to ground in the actuator wiring (reads low)Likely
- Loose or corroded connector at the actuatorCommon
- Failed gear shift forward actuatorCommon
- Failed transmission control module (TCM)Less often
How to diagnose & fix
Work through it in order
- Read freeze-frame data and inspect the actuator connector and wiring for damage, corrosion, or shorts to ground.
- Measure the actuator's resistance and control voltage against service data.
- Replace the gear shift forward actuator if it fails its electrical checks.
- If wiring and actuator are good, suspect the TCM. Clear and re-test.
FAQ
Quick answers
Is it safe to drive with P0922?+
Can I just clear P0922?+
Related codes
Often seen with P0922
Read & clear P0922 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.