What does code P0CF4 mean?

Q: What does code P0CF4 mean?

Control Pilot Circuit Range/Performance. P0CF4 indicates that the powertrain control module has detected an out-of-range or performance fault in the control pilot circuit, which is the low-voltage communication line used to negotiate charging between an electric vehicle and its charging equipment. The computer monitors the pulse-width modulated signal on this circuit and sets the code when the voltage or duty cycle falls outside the expected window for the commanded state.

DTC codes / P0Cxx · Hybrid propulsion / P0CF4

P0CF4Control Pilot Circuit Range/Performance

P0CF4 indicates that the powertrain control module has detected an out-of-range or performance fault in the control pilot circuit, which is the low-voltage communication line used to negotiate charging between an electric vehicle and its charging equipment. The computer monitors the pulse-width modulated signal on this circuit and sets the code when the voltage or duty cycle falls outside the expected window for the commanded state.

SystemPowertrain

Code typeGeneric (all makes)

SeverityMedium

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.