Wiper and Washer Systems: Testing and Inspection

Alternating Park Position (APP Function), Deactivating

Special tools, testers and auxiliary items required

• Vehicle diagnosis, testing and information system (VAS 5051B)

Windshield wiper system is equipped with APP function (alternating park position).

The APP function causes the wiper at every second wiper shut off to move upward slightly after reaching the lowest position.

To install the motor crank on the wiper motor and to set the windshield wiper blade end position, it is necessary to shut off the motor in the lowest park position. The APP function must be activated to ensure this.

• An activation of APP function is not possible.

• APP function is automatically activated after 100 wiping cycles. This applies to wiper motors in which the APP function was deactivated as well as for new wiper motors.

- Connect the (VAS 5051B). Refer to=> [ Vehicle Diagnosis, Testing and Information Systems ] Testing and Inspection.

- On the (VAS 5051B) , select "Guided Fault Finding".

- Using the "Go To" button, select "Functions/Component selection" and the following menu options in sequence:

• Body

• Electrical Equipment

• 01 - On Board Diagnostic (OBD) capable systems

• Vehicle electrical system control module

• Functions

• Coding the wiper motor control module/deactivating the APP function

• After successfully completing coding / deactivating of the APP function, wiper motor is located in the lower park position after the next wiper cycle.