What does code P2CC4 mean?

Q: What does code P2CC4 mean?

Generator Voltage Sense Circuit B High. P2CC4 means the engine control module (ECM) has detected that the voltage feedback signal from the generator's sense circuit B is higher than the expected range for the current operating conditions. The ECM uses this signal to monitor charging system performance, and a high reading indicates an open circuit, short to voltage, or internal generator fault that prevents accurate voltage sensing.

DTC codes / P2Cxx · Hybrid propulsion / P2CC4

P2CC4Generator Voltage Sense Circuit B High

P2CC4 means the engine control module (ECM) has detected that the voltage feedback signal from the generator's sense circuit B is higher than the expected range for the current operating conditions. The ECM uses this signal to monitor charging system performance, and a high reading indicates an open circuit, short to voltage, or internal generator fault that prevents accurate voltage sensing.

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.