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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 2003 (Wiper System & Washer System) >> Diagnosis And Testing >> Wipers and Washers >> Pinpoint Tests >> Pinpoint Test B: The Wipers are Inoperative - Rear Window >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

Under normal operation, the rear window wiper motor receives power through circuits SBB19 (BU/RD) and CBP43 (GY). The rear window wiper motor is grounded through circuit GD149 (BK/GY). The rear window wiper motor receives open and ground inputs from the multifunction switch through circuits CRW20 (GY/YE) and CRW21 (YE/VT) to activate the wiper to the appropriate speeds. The multifunction switch supplies a ground input to the rear wiper motor on CRW21 (YE/VT) when INT 1 is selected. The multifunction switch supplies ground to the rear wiper motor on CRW21 (YE/VT) and CRW20 (GY/YE) when INT 2 is selected.

This pinpoint test is intended to diagnose the following: 

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