Gear Shift Foward Actuator Circuit Low
The transmission's forward gear shift actuator isn't receiving enough electrical power to operate properly. It's like a door lock that isn't getting enough battery voltage to engage.
The ECM monitors the voltage and current supplied to the forward shift actuator solenoid circuit. When voltage drops below the minimum threshold needed to energize the solenoid, the ECU detects an undervoltage condition and sets this fault code.
| Parameter | Normal Range | Fault Condition |
|---|---|---|
| Solenoid Circuit Voltage | 12V nominal when energized | Below 9.5V or open circuit detected |
| Solenoid Current Draw | 0.5-2.0 amps when activated | Below minimum threshold indicating poor connection |
Code P0922 is a moderate fault. You can generally drive to a workshop, but avoid long trips or high-load driving (motorway, uphill towing) until it is diagnosed. If the code keeps returning after clearing, or if you notice the symptoms listed above worsening, do not delay professional diagnosis. Many moderate codes have multiple possible root causes — a mechanic with live OBD data can identify the exact fault more efficiently than part-by-part trial and error.
Once the fault is repaired, P0922 can be cleared using any OBD-II scanner. Connect the scanner, navigate to "Clear Codes" or "Erase DTCs," and confirm. The check engine light turns off immediately.
The code will return if the root cause was not actually fixed. The ECM re-detects the fault within 1–3 drive cycles and sets the code again.