P0927high severityPowertrain
Gate Select Position Circuit Low
on 2012 Tesla Model S 85 kWh Single Motor RWD · RWD
What this code 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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