What does code P2B9C mean?

Q: What does code P2B9C mean?

Coolant Pump A Stuck/Stalled. P2B9C indicates that the engine control module has detected a stuck or stalled condition in the electric coolant pump circuit, typically by comparing commanded pump speed to actual feedback. The pump is not moving coolant as requested, which can lead to overheating if not addressed.

DTC codes / P2Bxx · Hybrid propulsion / P2B9C

P2B9CCoolant Pump A Stuck/Stalled

P2B9C indicates that the engine control module has detected a stuck or stalled condition in the electric coolant pump circuit, typically by comparing commanded pump speed to actual feedback. The pump is not moving coolant as requested, which can lead to overheating if not addressed.

SystemPowertrain

Code typeGeneric (all makes)

SeverityHigh

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.