Diagnostic Trouble Code (DTC) Information

Diagnostic trouble code (DTC) information

Condition




The brake control module (BCM) receives information about the wheel speed for each wheel. The wheel sensors, which are on the wheel spindle, read off a pulse wheel on the wheel spindle.
Diagnostic trouble code (DTC) BCM-0012, BCM-0022, BCM-0032 or BCM-0042 is stored, depending on the wheel sensor, if the brake control module (BCM) registers that the signal from the wheel sensor has been disrupted for a period of 15 consecutive wheel revolutions.
- BCM-0012: Wheel sensor, left front
- BCM-0022: Wheel sensor, right front
- BCM-0032: Wheel sensor, left rear
- BCM-0042: Wheel sensor, right rear.
The diagnostic trouble code (DTC) can be diagnosed at speeds above 20 km/h.

Substitute value
- ABS is blocked
- Traction Control is blocked
- Stability Control is blocked
- Active yaw control is blocked
- Electronic Brake force Distribution (EBD) is blocked if two or more wheel sensors are not working.

Hint: Brake system, abbreviations Brake System, Abbreviations

Possible source
- Loose wheel sensor
- The pulse wheel is not functioning.
- Dirt between wheel sensor and pulse wheel.

Note! This diagnostic trouble code (DTC) is not due to an internal hardware fault in the Brake control module (BCM) and must not be remedied by replacing the control module.

Fault symptom[s]

If a wheel sensor is defective
- The ABS warning lamp is lit
- The information lamp is lit
- The ABS system does not function
- Traction control does not function
- The stability control system does not function.

If two or more wheel sensors are defective
- General warning lamp lit
- The warning lamp for brake circuit not functioning is lit
- The ABS system does not function
- Traction control does not function
- The stability control system does not function.

Note! If the fault becomes intermittent, the ABS warning lamp will not go out until the vehicle speed exceeds 10 km/h in the next operating cycle.