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Home >> Ford >> 2012 >> Mustang Base, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 607 (Windows And Glass - Glass, Frames And Mechanisms) >> Diagnosis And Testing >> Glass, Frames and Mechanisms >> Pinpoint Tests >> Pinpoint Test A: All Power Windows are Inoperative - Intermittent Operation, Super Cab or Super Crew >> Pinpoint Test A: All Power Windows Are Inoperative - Intermittent Operation

Pinpoint Test A: All Power Windows Are Inoperative - Intermittent Operation

WARNING: This page is about a different car, the 2014 Ford F-150. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
  1. A1 CHECK FOR A SHORT TO GROUND IN THE POWER WINDOW SYSTEM 
    • Disconnect: BCM  Circuit Breaker 48 (30A).
    • Install a fused jumper wire in place of BCM  circuit breaker 48 (30A).
    • Ignition ON.
    • Attempt to operate each individual power window in both directions from the LH window control switch as well as the passenger door(s) window control switch(es).

    Did the jumper wire fuse open during the test? 

    • Yes  : REFER to the OEM WIRING DIAGRAMS to identify the possible causes of the circuit short.

      REPAIR the circuit. TEST the system for normal operation.

    • No  : INSTALL a new circuit breaker. TEST the system for normal operation.
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