Checking Rear Windshield Washing

Checking rear windshield washing

Checking components
Activate the tailgate washer with the wiper switch. Read off the status.

Hint: If the wiper switch status is OK the fault is not in the steering wheel module (SWM).





Was the wiper switch status OK?

Yes - No Fault Found

No - Replacing the component

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Replacing the component
Replace the wiper switch.

Other information:
- To replace the wiper switch, see Washer / wiper switch, replacing Service and Repair.

Select "Continue" when the fault has been remedied.

Continue - Checking components

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Checking components
Activate the tailgate washer. Read off the status.

Hint: If the tailgate washer status is OK the fault is in the tailgate washer.





Was the tailgate washer status OK?

Yes - Fault Found

No - Replacing the component

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Replacing the component
Try replacing the steering wheel module (SWM).

Caution! A new control module is delivered without software. The control module must be programmed in order to function after replacement.

Other information:
- To replace and program the steering wheel module (SWM), see Steering wheel module (SWM), replacing Service and Repair.





Was a fault detected?

Yes - Fault Found

No - No Fault Found

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