What does code P26D8 mean?

Q: What does code P26D8 mean?

Engine Coolant Pump Clutch Stuck On. P26D8 indicates that the powertrain control module (PCM) has commanded the engine coolant pump clutch to disengage, but the clutch remains engaged or the circuit indicates it is still on. The PCM monitors the clutch control circuit and detects an unexpected voltage or current condition that confirms the clutch is stuck in the applied state.

DTC codes / P26xx · Computer and output circuits / P26D8

P26D8Engine Coolant Pump Clutch Stuck On

P26D8 indicates that the powertrain control module (PCM) has commanded the engine coolant pump clutch to disengage, but the clutch remains engaged or the circuit indicates it is still on. The PCM monitors the clutch control circuit and detects an unexpected voltage or current condition that confirms the clutch is stuck in the applied state.

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.