What does code P26AE mean?

Q: What does code P26AE mean?

Engine Coolant Bypass Valve B Control Circuit High. P26AE means the powertrain control module (PCM) commanded the engine coolant bypass valve B to a specific position, but the feedback circuit reported a voltage higher than the expected range for that command. The computer sees the valve control circuit stuck high, so it cannot trust that the bypass valve is moving coolant where it should.

DTC codes / P26xx · Computer and output circuits / P26AE

P26AEEngine Coolant Bypass Valve B Control Circuit High

P26AE means the powertrain control module (PCM) commanded the engine coolant bypass valve B to a specific position, but the feedback circuit reported a voltage higher than the expected range for that command. The computer sees the valve control circuit stuck high, so it cannot trust that the bypass valve is moving coolant where it should.

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.