P0D6AA/C Compressor Motor Voltage Sensor A Circuit High
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- How the car detects it
- P0D6A means the electric A/C compressor reports an input voltage higher than the high-voltage system can actually deliver. GM's 2011 Volt table sets it at 450 V or more (30 of 60 samples at 50 ms); the 2016 and 2019 Volt tables use more than 527.25 V, judged by the compressor itself and sent over the data bus (2019: 4 of 5 s). Both are Type B, MIL after two trips. Mitsubishi's Outlander PHEV flags it when the compressor reads above 415 V for 2 s while the battery shows 220 to 400 V; its 2019 and 2022 manuals label the code inconsistently as low and high, but the threshold is a high one. The 2023 model lights the MIL. A real overvoltage is unlikely, so the compressor's measurement or the hybrid controller is the main suspect. The low end is P0D6B, plausibility P0D69.
- What you may notice
- Check engine light
- Air conditioning stops cooling
- Driving otherwise normal
- Likely causes
- LikelyVoltage measurement in the compressor inverter reading too high
- PossibleElectric compressor assembly defective
- RareHybrid controller or data link fault
- Repair
- Workshop only · Usually a job for a workshop.Typical cost: €100 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.