DTC codes / C05xx · Brakes, steering and suspension / C05C0
This code means the antilock brake system (ABS) module has not completed the calibration routine for the brake pedal position sensor, so it cannot reliably tell how far the brake pedal is pressed. The computer detected that the learned zero or rest position for sensor A is missing or invalid, which disables functions that depend on accurate pedal travel.
Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.
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