OBD-II code · Powertrain (generic)
P0D79 A/C Compressor Control Module Output Driver Temperature Sensor Circuit Intermittent/Erratic
The ECM detects a intermittent/erratic fault on the a/c compressor control module output driver temperature sensor circuit. Reading cannot be used reliably for control.
Is it safe to drive with P0D79?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySensor connector not seated
- PossibleNoisy ground reference
- Less likelyConnector with intermittent contact under vibration
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–4 h
- Emissions test
- Usually unaffected
- Parts involved
- AC Compressor Cm Output Driver Temp Sensor, Wiring Harness, AC Compressor Module
Related codes
- P0D76A/C Compressor Control Module Output Driver Temperature Sensor Performance
- P0D77A/C Compressor Control Module Output Driver Temperature Sensor Circuit High
- P0D78A/C Compressor Control Module Output Driver Temperature Sensor Circuit Low
- P0D7AA/C Compressor Motor Phase U Current Low
- P0D7BA/C Compressor Motor Phase U Current High
- P0D7CA/C Compressor Motor Phase V Current Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.