What does code P2AFD mean?

Q: What does code P2AFD mean?

Engine Coolant Temperature Sensor 4 Range/Performance. P2AFD indicates that the engine control module has detected an out-of-range or performance fault in the circuit for engine coolant temperature sensor 4, which is a secondary or auxiliary coolant sensor on some vehicles. The computer compares the sensor signal against expected values and flags the code when the reading is implausible, intermittent, or stuck within a narrow range.

DTC codes / P2Axx · Hybrid propulsion / P2AFD

P2AFDEngine Coolant Temperature Sensor 4 Range/Performance

P2AFD indicates that the engine control module has detected an out-of-range or performance fault in the circuit for engine coolant temperature sensor 4, which is a secondary or auxiliary coolant sensor on some vehicles. The computer compares the sensor signal against expected values and flags the code when the reading is implausible, intermittent, or stuck within a narrow range.

SystemPowertrain

Code typeGeneric (all makes)

SeverityLow

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.