What does code C063B mean?

Q: What does code C063B mean?

Brake Pressure Sensor H Circuit Low. C063B indicates that the anti-lock brake system (ABS) control module has detected an abnormally low voltage signal from the brake pressure sensor H circuit, which is typically the master cylinder pressure sensor or a related pressure transducer. The module sets this code when the sensor output falls below the expected minimum threshold for a calibrated period, indicating a short to ground, an open circuit, or a faulty sensor.

DTC codes / C06xx · Brakes, steering and suspension / C063B

C063BBrake Pressure Sensor H Circuit Low

C063B indicates that the anti-lock brake system (ABS) control module has detected an abnormally low voltage signal from the brake pressure sensor H circuit, which is typically the master cylinder pressure sensor or a related pressure transducer. The module sets this code when the sensor output falls below the expected minimum threshold for a calibrated period, indicating a short to ground, an open circuit, or a faulty sensor.

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.