What does code P0C73 mean?

Q: What does code P0C73 mean?

Hybrid Battery Pack Cooling Pump Performance. P0C73 indicates that the hybrid battery pack cooling pump is not performing as commanded, meaning the pump that circulates coolant through the high-voltage battery is either not running, running too slowly, or drawing abnormal current. The hybrid control module monitors pump speed and electrical current and sets this code when the actual pump response does not match the requested output within a calibrated time window.

DTC codes / P0Cxx · Hybrid propulsion / P0C73

P0C73Hybrid Battery Pack Cooling Pump Performance

P0C73 indicates that the hybrid battery pack cooling pump is not performing as commanded, meaning the pump that circulates coolant through the high-voltage battery is either not running, running too slowly, or drawing abnormal current. The hybrid control module monitors pump speed and electrical current and sets this code when the actual pump response does not match the requested output within a calibrated time window.

SystemPowertrain

Code typeGeneric (all makes)

SeverityHigh

Fix difficultyProfessional

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.