OBD-II code · Powertrain (generic)
P0D73 A/C Compressor Control Module Internal Temperature Sensor A Circuit Low
The ECM detects a low fault on the a/c compressor control module internal temperature sensor a circuit. Reading cannot be used reliably for control.
Is it safe to drive with P0D73?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySignal wire shorted to ground
- PossibleInternal sensor short
- Less likelyConnector pins corroded - high contact resistance
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 Internal Temp Sensor A, Wiring Harness, AC Compressor Module
Related codes
- P0D70A/C Compressor Control Module Internal Temperature Sensor A Circuit
- P0D71A/C Compressor Control Module Internal Temperature Sensor A Performance
- P0D72A/C Compressor Control Module Internal Temperature Sensor A Circuit High
- P0D74A/C Compressor Control Module Internal Temperature Sensor A Circuit Intermittent/Erratic
- P0D75A/C Compressor Control Module Output Driver Temperature Sensor Circuit
- P0D76A/C Compressor Control Module Output Driver Temperature Sensor Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.