P0D7FA/C Compressor Motor Phase W Current High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Needs a drive cycle to confirm a fix
- How the car detects it
- P0D7F is the negative-direction current code for phase W of the electric A/C compressor motor. In GM's first-generation Volt and the 2016 ELR the inverter reports a W-phase current of −68 A or lower while the motor is stopped and no speed is requested; 30 such readings in 60 samples at 50 ms set the code, Type B with MIL after two trips, and a 12 V reset is required before it can pass. Since no current can flow in a stopped motor, a sensor offset or a fault in the measuring circuit is the cause, not the refrigerant system. Repair is normally a compressor assembly. GM's second-generation Volt no longer lists these phase codes. Related: P0D7E on the same phase, P0D7B and P0D7D on the others.
- What you may notice
- Check engine light after two trips
- Air conditioning inoperative
- Likely causes
- LikelyPhase W current sensor reading negative at standstill
- PossibleFault in the inverter's current measuring circuit
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €150 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.