What does code C05C4 mean?

Q: What does code C05C4 mean?

Brake Pressure Sensor F Missing Calibration. C05C4 indicates that the antilock braking system (ABS) control module has detected a missing calibration for the brake pressure sensor labeled F, meaning the sensor's zero point or scaling has not been learned by the module. The computer expects a stored calibration value from a learn procedure, and without it the module cannot trust the sensor's pressure readings for functions like stability control or hill assist.

DTC codes / C05xx · Brakes, steering and suspension / C05C4

C05C4Brake Pressure Sensor F Missing Calibration

C05C4 indicates that the antilock braking system (ABS) control module has detected a missing calibration for the brake pressure sensor labeled F, meaning the sensor's zero point or scaling has not been learned by the module. The computer expects a stored calibration value from a learn procedure, and without it the module cannot trust the sensor's pressure readings for functions like stability control or hill assist.

SystemChassis

Code typeGeneric (all makes)

SeverityMedium

Fix difficultyIntermediate

AreaBrakes, steering and suspension

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