What does code P2CB3 mean?

Q: What does code P2CB3 mean?

Charge Air Cooler Coolant Pump B Stuck/Stalled. P2CB3 indicates that the powertrain control module has detected a stuck or stalled condition in the electric coolant pump that circulates liquid through the charge air cooler circuit, often called pump B. The computer commands the pump on and monitors feedback, and it sets this code when the pump fails to respond, draws abnormal current, or does not build expected pressure within a calibrated time.

DTC codes / P2Cxx · Hybrid propulsion / P2CB3

P2CB3Charge Air Cooler Coolant Pump B Stuck/Stalled

P2CB3 indicates that the powertrain control module has detected a stuck or stalled condition in the electric coolant pump that circulates liquid through the charge air cooler circuit, often called pump B. The computer commands the pump on and monitors feedback, and it sets this code when the pump fails to respond, draws abnormal current, or does not build expected pressure within a calibrated time.

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.