What does code P26BC mean?

Q: What does code P26BC mean?

Engine Coolant Bypass Valve C Stuck Closed. P26BC indicates that the engine control module has detected a fault in the engine coolant bypass valve circuit for valve 'C', specifically that the valve is stuck in the closed position. The computer commands the valve to open or close and monitors the circuit and its effect on coolant flow, and it sets this code when the valve fails to respond or the feedback signal indicates it remains closed.

DTC codes / P26xx · Computer and output circuits / P26BC

P26BCEngine Coolant Bypass Valve C Stuck Closed

P26BC indicates that the engine control module has detected a fault in the engine coolant bypass valve circuit for valve 'C', specifically that the valve is stuck in the closed position. The computer commands the valve to open or close and monitors the circuit and its effect on coolant flow, and it sets this code when the valve fails to respond or the feedback signal indicates it remains closed.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaComputer and output circuits

Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.