P2D29
A/C Compressor Motor Stalled
The electric A/C compressor motor is stalled. High mechanical resistance, internal seizure, or refrigerant overpressure prevents rotation.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: hard
Common causes
Ordered by how often each turns out to be the cause.
- Compressor mechanically seizedCommon
- Refrigerant overpressure stalls compressorPossible
Parts involved
- AC Compressor Motor
P2D29 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.