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Home >> Ford >> 2012 >> Mustang Base, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 77 (Wiper System & Washer System -- F250-F550 Super Duty) >> Diagnosis And Testing >> Wipers and Washers >> Pinpoint Tests >> Pinpoint Test E: The Washer Pump is Inoperative >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2012 Ford Pickup, 2012 Ford F550 Super Duty, 2012 Ford F450 Super Duty, and 2012 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

When the multifunction switch is placed in the WASH position, the SCCM sends the request to the windshield wiper motor over the LIN. The windshield wiper motor then supplies power to the washer pump which directs washer fluid to the windshield.

This pinpoint test is intended to diagnose the following: 

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