Diagnostic trouble code (DTC) information

Condition

Fig 1: Identifying Brake Control Module (BCM) & Steering Wheel Angle Sensor

Courtesy of VOLVO CARS OF NORTH AMERICA.

NOTE:

The diagnostic trouble code (DTC) applies only to cars with dynamic stability and traction control (DSTC).

The control module for the steering angle sensor transmits a status signal to the brake control module (BCM).

Diagnostic trouble code (DTC) BCM-0109 is stored if the brake control module (BCM) receives a message from the steering angle sensor indicating an internal fault.

Substitute Value

Traction control is blocked
Stability control is blocked
Active yaw control is blocked.

HINT: For information about abbreviations, see Brake system, abbreviations .

Possible Source

Internal fault in the control module for the steering wheel angle sensor.

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]

The anti-spin warning lamp is lit (up to and including 2002 model year)
General yellow warning lamp lit (from model year 2003 inclusive)
Anti-spin does not function
The stability control system does not function
The traction control system does not function.