OBD-II code · Powertrain (generic, extended)
P2E7E A/C Compressor Control Module Internal Temperature Sensor B Circuit High
The ECM detects a circuit high fault on the a/c compressor control module internal temperature sensor b circuit. Reading cannot be used reliably for control.
Is it safe to drive with P2E7E?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelySignal wire shorted to B+
- PossibleOpen sensor
- 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 B, Wiring Harness, AC Compressor Module
Related codes
- P2E7BDrive Motor A Excitation Current Sensor Circuit
- P2E7CA/C Compressor Control Module Internal Temperature Sensor B Circuit
- P2E7DA/C Compressor Control Module Internal Temperature Sensor B Range/Performance
- P2E7FA/C Compressor Control Module Internal Temperature Sensor B Circuit Low
- P2E80A/C Compressor Control Module Internal Temperature Sensor B Circuit Intermittent/Erratic
- P2E81Cold Start Engine Coolant Bypass Valve D Stuck Closed
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.