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Home >> Ford >> 2012 >> Mustang Base, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 403 (Windows And Glass - Glass, Frames And Mechanisms) >> Diagnosis And Testing >> Glass, Frames and Mechanisms >> Pinpoint Tests >> Pinpoint Test K: All Passenger Windows Are Inoperative - LH and RH Rear, Crew Cab >> Normal Operation

Normal Operation

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The LH and RH rear window control switches receive power from the LH front window control switch when the window lock switch is set to the UNLOCK position. Ground is also provided to the LH and RH rear window control switches from the LH front window control switch. The LH and RH rear window control switches transfer power and ground to their respective rear window motors. Window direction is controlled by reversing polarity of the voltage and ground circuits being supplied to the window motor.

When operating the LH or RH rear window from the LH front window control switch, power and ground is sent from the LH front window control switch through the normally closed contacts within the LH or RH rear window control switch to operate the LH or RH rear window. Window direction is controlled by reversing polarity of the voltage and ground circuits being supplied to the window motor.

This pinpoint test is intended to diagnose the following: 

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