Diagnostic Trouble Code (DTC) Information BCM-0115

Condition

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

Courtesy of VOLVO CARS CORPORATION

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

NOTE: This diagnostic trouble code (DTC) can be stored incorrectly if the ignition is turned to position II using a key from another vehicle.

The steering wheel module (SWM) transmits a signal via CAN to the brake control module (BCM). The signal indicates whether the steering wheel angle sensor is functioning correctly or not.

The diagnostic trouble code (DTC) is stored if the brake control module (BCM) registers that the signal from the steering wheel module (SWM) is absent.

The diagnostic trouble code (DTC) can be diagnosed when the ignition is switched on.

Substitute Value

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

HINT: BRAKE SYSTEM, ABBREVIATIONS

Possible Source

Disruption or open-circuit on the Control area network (CAN)
Steering wheel module (SWM) not connected to the controller area network (CAN)
Internal fault in the steering wheel module (SWM).

Fault symptom[s]

The information lamp is lit
Traction control does not function
The stability control system does not function.