What does code P0CE9 mean?

Q: What does code P0CE9 mean?

Hybrid/EV Electronics Coolant Pump A Control Circuit/Open. P0CE9 indicates that the hybrid or electric vehicle control module has detected an open circuit or control fault in the electrical path for coolant pump 'A', which circulates liquid coolant through the power electronics. The computer monitors the pump's control circuit and sets this code when the expected voltage or current feedback does not match commanded operation.

DTC codes / P0Cxx · Hybrid propulsion / P0CE9

P0CE9Hybrid/EV Electronics Coolant Pump A Control Circuit/Open

P0CE9 indicates that the hybrid or electric vehicle control module has detected an open circuit or control fault in the electrical path for coolant pump 'A', which circulates liquid coolant through the power electronics. The computer monitors the pump's control circuit and sets this code when the expected voltage or current feedback does not match commanded operation.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaHybrid propulsion

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