P0D7CA/C Compressor Motor Phase V Current Low
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Needs a drive cycle to confirm a fix
- How the car detects it
- P0D7C relates to phase V of the three-phase motor in an electric A/C compressor. GM documents it in the 2011–2015 Volt and 2016 ELR tables as a standstill check: with the compressor speed request at 0 rpm the measured phase V current should be near zero, and a value of +68 A or above in 30 of 60 samples (50 ms each) sets the code. It is Type B, so the MIL comes on after two trips, and the result only returns to pass after a 12 V reset. The later Volt tables from 2016 do not list it. As the motor cannot carry that current while stopped, an offset in the inverter's phase V current sensor is the likely cause, and the compressor is normally replaced. Related: P0D7D for the negative side, P0D7A and P0D7E for the other phases.
- What you may notice
- Check engine light after two trips
- Air conditioning inoperative
- Likely causes
- LikelyOffset or failure of the phase V current sensor in the inverter
- 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.