What does code P2B61 mean?

Q: What does code P2B61 mean?

Engine Coolant Flow Control Valve Stuck Closed. P2B61 indicates that the powertrain control module has detected the engine coolant flow control valve is stuck in the closed position, preventing coolant from circulating through the intended path. The computer typically commands the valve to open and monitors the resulting change in coolant temperature or flow, and it sets this code when the expected response does not occur.

DTC codes / P2Bxx · Hybrid propulsion / P2B61

P2B61Engine Coolant Flow Control Valve Stuck Closed

P2B61 indicates that the powertrain control module has detected the engine coolant flow control valve is stuck in the closed position, preventing coolant from circulating through the intended path. The computer typically commands the valve to open and monitors the resulting change in coolant temperature or flow, and it sets this code when the expected response does not occur.

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.