Faulty Signal

Faulty signal. Permanent fault

Checking wiring and sensors








- Ignition off
- The control module for the steering wheel angle sensor disconnected
- Steering wheel module disconnected
- Connect the breakout box to the control module for the steering wheel angle sensor and to the steering wheel module.
Check the wiring between the control module for the steering wheel angle sensor
terminal #5 (terminal (#A29) and steering wheel module terminal #4 (terminal #A4)
terminal #12 (terminal (#A36) and steering wheel module terminal #13 (terminal #A13)
terminal #13 (terminal (#A37) and steering wheel module terminal #11 (terminal #A11)
terminal #14 (terminal (#A38) and steering wheel module terminal #18 (terminal #A18)
check for a short-circuit to each other.
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.

Other information:
- To disconnect the control module for the steering wheel angle sensor, see Steering wheel module (SWM), replacing Service and Repair
- To connect the breakout box to the steering wheel module, see Connecting the breakout box Connecting the Breakout Box, Steering Wheel Module (SWM)
- To replace the steering wheel angle sensor, see Contact reel / steering wheel angle sensor, replacing Contact Reel / Steering Wheel Angle Sensor, Replacing
- For information about signals to the control module for the steering wheel angle sensor, see Signal description, Control unit for the steering wheel angle sensor (SAS) Signal Specification
- For information about signals to the steering wheel module, see Signal specification Signal Specification, Steering Wheel Module (SWM).










Continue - Verification

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Verification




Verification

Hint: After the repair it is necessary to check that the fault has been rectified.




- Ignition off.
- Connect the connectors, install the components, etc.
- Ignition on.
- Read off steering wheel angle signal R1/R2/R3/R4.
- Turn the steering wheel slowly to full lock in both directions.
The value should change between OFF and ON.





Do the values alternate between OFF and ON?

Yes - VERIFIED

No - VERIFICATION FAILEDPAPER

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VERIFIED - Fault Found

VERIFICATION FAILED - Fault-tracing information

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Fault-tracing information




Information

Fault-tracing information
The fault should have been detected and remedied. As this is not the case fault-tracing has failed.
Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.

Do you want to exit fault-tracing?

Yes - FAULT-TRACING FAILED

No - Attempt New Test

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FAULT-TRACING FAILED - FAULT-TRACING FAILED

Attempt New Test - Checking wiring and sensors

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