Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information BCM-0103

Condition




The brake pedal position sensor transmits a signal to the brake control module (BCM) about the position of the brake pedal and the speed at which it is pressed. The diagnostic trouble code (DTC) is stored if the brake control module (BCM) registers that the signal from the pedal position sensor is higher than 4.85 V or lower than 0.15 V for too long.
The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on.

Substitute value
- There is no traction control at the rear wheels in cars equipped with TRACS. (The traction control on the front wheels is still OK.).

Hint: Brake system, abbreviations Brake System, Abbreviations

Possible source
- Open-circuit in the signal cable
- Open-circuit in the supply cable
- Open-circuit in the ground lead
- Short-circuit to supply in the signal cable or ground cable
- Short-circuit to ground in signal cable
- Incorrectly installed sensor
- Damaged sensor
- Internal fault in the brake control module (BCM).

Fault symptom[s]
- Traction control is not functioning.