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Home >> Ford >> 2013 >> Edge SEL, 2.0L Eng VIN 9 >> Repair and Diagnosis >> External Pages >> Different car >> Section 267 (Wiper System & Washer System) >> Diagnosis And Testing >> Wipers and Washers >> Pinpoint Tests >> Pinpoint Test H: The Rear Window Wiper Is Inoperative In One Or Both Speeds >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2014 Lincoln MKX and 2014 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

The wiper/washer switch is mounted to the Steering Column Control Module (SCCM). The SCCM  sends the wiper mode request to the windshield wiper motor through the LIN  . When the request is received, the windshield wiper motor supplies a momentary ground to the rear window wiper motor. The position of the wiper/washer switch determines the frequency of this ground. When the wiper/washer switch is in the INT 1 position, the windshield wiper motor provides a momentary ground approximately once every 10 to 12 seconds. In the INT 2 position, the momentary ground is provided approximately once every 3 to 5 seconds. When the ground is present, it activates an integral relay within the rear window wiper motor which activates the motor. The rear window wiper motor is self parking.

This pinpoint test is intended to diagnose the following: 

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