What does code P26F8 mean?

Q: What does code P26F8 mean?

Coolant Pump C Stuck/Stalled. P26F8 indicates that the powertrain control module (PCM) has detected a stuck or stalled condition in coolant pump C, which is an auxiliary electric pump used for dedicated cooling circuits such as turbocharger after-run, battery thermal management, or cabin heat support. The PCM commands the pump on and monitors feedback, typically through a speed signal or current draw, and sets this code when the pump fails to respond or reports zero speed while commanded.

DTC codes / P26xx · Computer and output circuits / P26F8

P26F8Coolant Pump C Stuck/Stalled

P26F8 indicates that the powertrain control module (PCM) has detected a stuck or stalled condition in coolant pump C, which is an auxiliary electric pump used for dedicated cooling circuits such as turbocharger after-run, battery thermal management, or cabin heat support. The PCM commands the pump on and monitors feedback, typically through a speed signal or current draw, and sets this code when the pump fails to respond or reports zero speed while commanded.

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.