What does code P2D26 mean?

Q: What does code P2D26 mean?

Coolant Pump E Control Circuit Performance/Stuck Off. P2D26 indicates that the engine control module (ECM) has detected a performance fault in the electrical control circuit for the engine coolant pump, specifically that the pump is stuck off or not responding as commanded. The ECM monitors the circuit for expected current draw or feedback when the pump is activated, and when the signal does not match the commanded state, it sets this code and may illuminate the check engine light.

DTC codes / P2Dxx · Hybrid propulsion / P2D26

P2D26Coolant Pump E Control Circuit Performance/Stuck Off

P2D26 indicates that the engine control module (ECM) has detected a performance fault in the electrical control circuit for the engine coolant pump, specifically that the pump is stuck off or not responding as commanded. The ECM monitors the circuit for expected current draw or feedback when the pump is activated, and when the signal does not match the commanded state, it sets this code and may illuminate the check engine light.

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.