P0922

Gear Shift Forward Actuator Circuit Low

Severity: High
Driving: Drive only to a garage

The gear shift forward actuator circuit is reading low - typically shorted to earth or open circuit. The module cannot drive that actuator, so gears requiring movement in the forward direction cannot be engaged.

Possible causes

CommonWiring shorted to earth or open circuit between the module and the actuator
CommonCorroded or water-ingressed connector at the gearbox
CommonOpen or shorted actuator winding
PossibleChafed harness at the gearbox
RareFailed control module driver

What you might notice

Some gears unavailable
Car stuck in neutral
Transmission warning message
Check engine light on

What to check, in order

Disconnect the actuator and check whether the low reading persists at the harness.
Inspect the connector for corrosion and water.
Measure the actuator winding against specification.
Note which gears still work - that tells you whether one actuator or a shared circuit is at fault.
Run the calibration procedure after any repair.

Read this code from your own car

Plug an ELM327 adapter into the OBD-II port under the dashboard. Pin16 reads every stored, pending and permanent code, explains each one like this page does — offline, with no account — and shows what the car recorded when the fault was set.

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Where this code sits

B · Body C · Chassis P · Powertrain U · Network and communication

Transmission and control modules