P0927
PowertrainTransmission Shifthigh severityGate Select Position Circuit Low
What P0927 Means
The PCM detected a low voltage in the gate select position circuit used for shifting in automated manual transmissions. This can prevent proper gear selection.
Symptoms
- Unable to select certain gears
- Harsh or missed shifts
- Transmission warning light
Common Causes
- Short to ground in gate select circuit
- Faulty gate select position sensor
- Damaged wiring or connector
- Internal shift mechanism fault
Diagnostic Steps
- Retrieve codes and freeze frame data
- Test gate select circuit for short to ground
- Inspect position sensor wiring and connector
- Verify sensor output against specification
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