What does code P2AFE mean?

Q: What does code P2AFE mean?

Engine Coolant Temperature Sensor 4 Circuit Low. P2AFE indicates that the powertrain control module (PCM) has detected an abnormally low voltage signal on the circuit for engine coolant temperature sensor number four. The PCM expects a voltage that varies with coolant temperature, and a low reading tells it the sensor circuit is shorted to ground or otherwise reading colder than physically possible.

DTC codes / P2Axx · Hybrid propulsion / P2AFE

P2AFEEngine Coolant Temperature Sensor 4 Circuit Low

P2AFE indicates that the powertrain control module (PCM) has detected an abnormally low voltage signal on the circuit for engine coolant temperature sensor number four. The PCM expects a voltage that varies with coolant temperature, and a low reading tells it the sensor circuit is shorted to ground or otherwise reading colder than physically possible.

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.