Checking the Turn Signal Lamp Switch

Checking the turn signal lamp switch

Checking components
Activate the turn signal lamp switch. Read off the status.

Hint: If the direction indicator switch status is OK the problem is in the Steering wheel module (SWM).





Was the direction indicator switch status OK?

Yes - No Fault Found

No - Replacing a component

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Replacing a component
Change direction indicator switch.

Other information:
- Turn signal switch, replacing Turn Signal Switch, Replacing

Select continue when the defect has been remedied.

Continue - Checking components

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Checking components
Activate the turn signal lamp switch. Read off the status.

Hint: If the direction indicator switch status is OK the problem is in the direction indicator switch.





Was the direction indicator switch status OK?

Yes - Fault Found

No - Checking the windshield wiper switch

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Replacing a component
Try replacing the control module.

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

Other information
- Steering wheel module (SWM), replacing Service and Repair





Were any defects found?

Yes - Fault Found

No - No Fault Found

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Checking the windshield wiper switch
If there is a malfunction on the wiper switch or its connector in the Steering wheel module (SWM) this may affect the direction indicator function. Disconnect the wiper lever and see if the direction indicator function starts to work.
Remedy as necessary.

Other information
- Washer / wiper switch, replacing Service and Repair

Was a fault detected?

Yes - Fault Found

No - Replacing a component

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