Diagnostic Trouble Code (DTC) Information BCM-0148

Condition 

Fig 1: Identifying Steering Wheel Module (SWM)

Courtesy of VOLVO CARS OF NORTH AMERICA.

The steering wheel module (SWM) communicates with the brake control module (BCM) using data that is transmitted in "small packages". Each package has an ID number.

The diagnostic trouble code (DTC) is stored if the brake control module (BCM) registers that an ID number does not correspond to what the control module expects.

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 intermittent open-circuit on the Control 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.