Checking wiring and sensors

Fig 1: Identifying Ignition OFF

GLL101045

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Disconnecting Control Unit

GLL101002

Courtesy of VOLVO CARS OF NORTH AMERICA.

Ignition off
The control module for the steering wheel angle sensor disconnected
Steering wheel module (SWM) disconnected
Connect the breakout box to the control module for the steering wheel angle sensor and to the steering wheel module (SWM)
Check the wiring between the control module for the steering wheel angle sensor terminal #4 (#A28) and steering wheel module (SWM) terminal #3 (#A3). Check for an open-circuit according to Open-circuit, permanent faults .

Try replacing the steering wheel angle sensor if no faults are found in the wiring between the control module for the steering wheel angle sensor and the steering wheel module (SWM).

Other information:
- To connect the breakout box to the control module for the steering wheel angle sensor, see Connecting the breakout box to the steering angle sensor
- To connect the breakout box to the steering wheel module (SWM), see Connecting the breakout box
- To replace the steering wheel angle sensor, see Contact reel/steering wheel angle sensor, replacing
- For information about signals for the control module for the steering wheel angle sensor, see Signal description, Control unit for the steering wheel angle sensor (SAS)
- For information about signals to the steering wheel module (SWM), see Signal specification .
Fig 3: Breakout Box
Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 4: Identifying Ohm Meter
Courtesy of VOLVO CARS OF NORTH AMERICA.

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Refer to Verification