Faulty Signal

Faulty signal

Checking the fitting of the Steering Angle Sensor (SAS)




The diagnostic trouble code (DTC) shows that the steering wheel angle sensor may be incorrectly installed. It is extremely important that the contact reel/steering wheel angle sensor is installed correctly. If the unit is installed with the turning central section one turn out of place, full steering lock can break internal components. If this has occurred, replace the contact reel.
- Ignition off.
- Align the wheels in the straight ahead position.
- Remove the steering wheel.
Check that the white markings are visible in the contact reel window when the wheels are in the straight ahead position. If the steering wheel angle is incorrect the contact roller shall be adjusted so that the white marking is visible in the contact roller's window when the contact roller's lock screw is located in the correct position.

Note! The diagnostic trouble codes (DTCs) for steering wheel buttons are stored if the ignition key is turned to ignition position II when the steering wheel is removed.

Remedy as necessary.

Other information
- Steering wheel control module Service and Repair

Select an alternative below
1. No defect found on contact roller.
2. The contact roller is adjusted incorrectly.





Select an alternative.

1 - Check the Steering Wheel Module (SWM)

2 - Checking the control module

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Fault-tracing information




Information

Fault-tracing information
In case of this defect, troubleshooting is not followed by verification.
The information can be displayed again or the fault-tracing for this fault can be interrupted.

Do you want to view the information again?

Yes - Attempt New Test

No - FAULT FOUND

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Attempt New Test - Checking the fitting of the Steering Angle Sensor (SAS)

FAULT FOUND - DONE

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Check the Steering Wheel Module (SWM)
The Steering Wheel Module (SWM) has registered an internal fault.

Hint: The steering wheel angle sensor is integrated in the Steering Wheel Module (SWM) and cannot be replaced as a separate unit.

If the fault is intermittent, it has been registered previously but is no longer present. Intermittent malfunctions may be due to interference at start-up of the Steering Wheel Module (SWM) or may be another type of recurring problem. The fault is evaluated depending on how it occurs. If the fault recurs, replace the control module.
Replace the steering wheel module (SWM) in the event of a permanent fault.
Remedy as necessary.





Continue - Fault-tracing information

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Checking the control module








- Ignition off.
- Reconnect the connectors, reinstall components etc.
- Ignition on.
- Turn the steering wheel to the limit position in both directions.
- Read off diagnostic trouble codes (DTCs).
If the diagnostic trouble code (DTC) is intermittent, this means that the cause of the fault has been found. If the fault is permanent, replace the control module.

Other information
- Steering wheel control module Service and Repair





Continue - Fault-tracing information

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