What does code P2E7F mean?

DTC codes / P2Exx · Hybrid propulsion / P2E7F

P2E7FA/C Compressor Control Module Internal Temperature Sensor B Circuit Low

P2E7F indicates that the air conditioning (A/C) compressor control module has detected an abnormally low voltage signal from its internal temperature sensor B circuit. The module monitors this sensor to protect the compressor from overheating, and a low signal tells it that the sensor circuit is shorted to ground or the sensor itself has failed.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaHybrid propulsion

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.