Diagnostic trouble code (DTC) information
Condition
The brake pedal position sensor is part of "Active brake assistance". The sensor transmits a signal to the brake control module about the position of the brake pedal and the speed at which it is pressed. These signals are required to determine how much brake power is required in each brake situation.
The pedal position sensor is included on cars without brake assistance and is then used by the control module to check the operation of the stop lamp switch.
Diagnostic trouble code (DTC) BCM-0147 is stored if the control module registers a faulty signal from the pedal position sensor.
The diagnostic trouble code (DTC) can be diagnosed after the brake pedal has been depressed to the maximum, the engine has been started, and the brake pedal released. After having been stationary for approximately 10 seconds and then driven faster than 10 km/h for at least 10 seconds. Then stopped the car by braking.
Substitute Value
- Brake assistance is blocked.
HINT: For information about abbreviations, see Brake system, abbreviations .
Possible Source
- Open-circuit in the wiring
- Short-circuit to ground or supply voltage in the wiring
- Incorrectly installed pedal position sensor
- Defective pedal position sensor
- Defective brake control module.
Fault symptom[s]
- General yellow warning lamp lit.