OBD-II code · Powertrain (generic)
P0EF5 Drive Motor C Temperature Sensor Circuit High
The ECM detects a high fault on the drive motor c temperature sensor circuit. Reading cannot be used reliably for control.
Is it safe to drive with P0EF5?
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
Symptoms
- EV/hybrid system warning light on
- Reduced motor power or torque
- Possible limp mode or vehicle shutdown
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1–5 h
- Emissions test
- Usually unaffected
- Parts involved
- Drive Motor C Temp Sensor, Wiring Harness, Hybrid Control Module
Related codes
- P0A2DDrive Motor A Temperature Sensor Circuit High
- P0A33Drive Motor B Temperature Sensor Circuit High
- P0EF2Drive Motor C Temperature Sensor Circuit
- P0EF3Drive Motor C Temperature Sensor Circuit Range/Performance
- P0EF4Drive Motor C Temperature Sensor Circuit Low
- P0EF6Drive Motor C Temperature Sensor Circuit Intermittent/Erratic
- P0EF7Battery Charger A Input Voltage Sensor B Circuit
- P0EF8Battery Charger A Input Voltage Sensor B Circuit Range/Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.