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Home >> Ford >> 2012 >> Mustang Boss 302 >> Repair and Diagnosis >> External Pages >> Different car >> Section 102 (Glass, Frames And Mechanisms - With Window One-Touch Up -- F250-F550 Super Duty) >> Diagnosis And Testing >> Glass, Frames and Mechanisms >> Pinpoint Tests >> Pinpoint Test B: All Power Windows are Inoperative >> Pinpoint Test B: All Power Windows Are Inoperative

Pinpoint Test B: All Power Windows Are Inoperative

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.
NOTE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
  1. B1 CHECK VOLTAGE TO LH FRONT WINDOW CONTROL SWITCH 
    • Disconnect: LH Front Window Control Switch C566B (Crew Cab) or C537 (regular and SuperCab).
    • Ignition ON.
    • Measure the voltage between LH front window control switch and ground.
      • For regular and SuperCab, measure the voltage between LH front window control switch C537-3, circuit CBP32 (GN/VT), harness side and ground.
      • For Crew Cab, measure the voltage between LH front window control switch C566B-3, circuit CBP01 (BU), harness side and ground.
        Fig 1: Measuring Voltage Between LH Front Window Control Switch C566B-3, Circuit CBP01 (BU), Harness Side And Ground
        G07975275Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes  : INSTALL a new LH front window control switch. REFER to WINDOW CONTROL SWITCH . TEST the system for normal operation.
    • No  : VERIFY BCM fuse 32 (15A) (regular and SuperCab) or circuit breaker 48 (30A) (Crew Cab) is OK. If OK, GO to PINPOINT TEST F  to diagnose the accessory delay circuit.

      If not OK, REFER to the appropriate SYSTEM WIRING DIAGRAMS to identify the possible causes of the circuit short. TEST the system for normal operation.