What does code P2DF6 mean?

Q: What does code P2DF6 mean?

Coolant Pump E Control Circuit High. P2DF6 indicates that the engine control module (ECM) has detected an abnormally high voltage on the control circuit for the coolant pump designated as 'E'. This typically means the circuit is open, shorted to voltage, or the pump's internal electronics have failed, preventing the ECM from properly commanding the pump.

DTC codes / P2Dxx · Hybrid propulsion / P2DF6

P2DF6Coolant Pump E Control Circuit High

P2DF6 indicates that the engine control module (ECM) has detected an abnormally high voltage on the control circuit for the coolant pump designated as 'E'. This typically means the circuit is open, shorted to voltage, or the pump's internal electronics have failed, preventing the ECM from properly commanding the pump.

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.