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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1721 (Wiper System & Washer System) >> Diagnosis And Testing >> Wipers and Washers >> Pinpoint Tests >> Pinpoint Test A: The Wipers are Inoperative >> Normal Operation

Normal Operation

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

The wiper/washer module is hot at all times through circuit SBB09 (RD). When the ignition switch is in the RUN or ACCESSORY position, voltage is supplied to the wiper/washer module through circuit CBP45 (YE). The wiper/washer module and wiper motor are grounded through circuit GD121 (BK/YE). The multifunction switch is grounded through circuit GD116 (BK/VT). The multifunction switch sends open and ground input signals to the wiper/washer module through circuits CRW17 (GN/VT), CRW18 (VT/WH), CRW19 (BU/OG) and CRW08 (VT/OG) in order to activate the wiper motor to the requested modes. The wiper/washer module supplies voltage to the wiper motor through circuits CRW16 [(GY/BN) low] and CRW15 [(BN/WH) high].

This pinpoint test is intended to diagnose the following: 

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