Checking wiring and sensors

Disconnect the cable harness between the steering wheel angle sensor module (SAS) and the steering wheel module (SWM)
Connect the breakout box.
Check the wiring between the steering wheel angle sensor module (SAS) terminal #14 (#A38) and steering wheel module (SWM) terminal #18 (#A18). Check for an open-circuit. See Open-circuit, permanent faults . Check for a short-circuit to supply voltage. See Short-circuit to supply voltage. Permanent faults .

HINT: With the ignition on and the breakout box connected to the steering wheel module (SWM), check the supply voltage to the steering wheel angle sensor control module: Measure the voltage between terminals #?? and #??. The voltage should be 12 V.

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 angle sensor.

Other information:
- To connect the breakout box, see Connecting the breakout box to the steering angle sensor
- To replace the steering wheel angle sensor, see Contact reel/steering wheel angle sensor, replacing
- for information about signals, see Signal description, Control unit for the steering wheel angle sensor (SAS) .
Fig 1: 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 Angle Sensor
Courtesy of VOLVO CARS OF NORTH AMERICA.

Was a fault found in the wiring?