Checking the power supply and ground for the steering wheel module (SWM)

Check the fuse in the passenger compartment fusebox for the steering wheel module (SWM).

Check the steering wheel module (SWM) connector. Check for contact resistance and oxidation.

Check the ground lead between the control module and the ground terminal. Check for an open-circuit. Also check the ground terminal. Check for contact resistance and oxidation.

Remedy as necessary.

Other information: 

• To access or replace the fuses, see Fusebox, passenger compartment, replacing
• To access or replace the steering wheel module (SWM), see Steering wheel module (SWM), replacing
• To connect the breakout box, see Connecting the breakout box
• For information about signals and connectors, see Signal specification
• For information about checking wiring and terminals see Checking wiring and terminals .

Fig 1: Identifying Breakout Box

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Ohmmeter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 3: Identifying Steering Wheel Module

Courtesy of VOLVO CARS OF NORTH AMERICA.

Was a fault detected? 

• YES 

  Refer to Checking the function of the steering wheel module (SWM) 

• NO 

  Refer to Signal missing