Checking the Windscreen-Wiper Switch

Checking the windscreen-wiper switch

Checking the components
Activate windscreen-wiper switch and read status.

Hint: If read-out of status on windscreen-wiper switch gave a correct result the fault is not in the SWM.





Did read-out of status on windscreen-wiper switch give a correct result?

Yes - No Fault Found

No - Replacing the component

-------------------------------------------------

Replacing the component
Replace the windscreen-wiper switch

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

Press Continue when fault has been repaired.

Continue - Checking the components

-------------------------------------------------

Checking the components
Activate windscreen-wiper switch and read status.

Hint: If read-out of status on windscreen-wiper switch gave a correct result the fault was in the windscreen-wiper switch.





Did read-out of status on windscreen-wiper switch give a correct result?

Yes - FAULT FOUND

No - Replacing the component

-------------------------------------------------

Replacing the component
Test by replacing the control unit.

Caution! A new control unit is supplied without software. The new control unit must be programmed before it will work.

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





Is there a fault?

Yes - FAULT FOUND

No - No Fault Found

-------------------------------------------------