What does code P26D7 mean?

Q: What does code P26D7 mean?

Engine Coolant Pump Clutch Performance/Stuck Off. P26D7 indicates that the powertrain control module (PCM) has detected a performance fault with the engine coolant pump clutch circuit, specifically that the clutch is stuck in the off position or not engaging when commanded. The PCM monitors the clutch circuit and expects certain electrical feedback or coolant temperature changes when the clutch is activated; when the expected response is missing, it sets this code and illuminates the check engine light.

DTC codes / P26xx · Computer and output circuits / P26D7

P26D7Engine Coolant Pump Clutch Performance/Stuck Off

P26D7 indicates that the powertrain control module (PCM) has detected a performance fault with the engine coolant pump clutch circuit, specifically that the clutch is stuck in the off position or not engaging when commanded. The PCM monitors the clutch circuit and expects certain electrical feedback or coolant temperature changes when the clutch is activated; when the expected response is missing, it sets this code and illuminates the check engine light.

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.