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Home >> Ford >> 2002 >> Cutaway 7.3 F >> Repair and Diagnosis >> External Pages >> Different car >> Section 2994 (Windows & Glass - Glass, Frames And Mechanisms -- 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 2011 Ford Pickup, 2011 Ford F550 Super Duty, 2011 Ford F450 Super Duty, and 2011 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 C504A (Crew Cab) or C535 (regular and SuperCab).
    • Ignition ON.
    • Measure the voltage between LH front window control switch C504A-2 (Crew Cab) or C535-7 (regular and SuperCab), circuit CBP01 (BU), harness side and ground.
      Fig 1: Measuring Voltage Between LH Front Window Control Switch And Ground
      G07485968Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes:  GO to  B3.
    • No:  VERIFY BCM  circuit breaker 48 (30A) is OK. If OK, GO to  B2.

      If not OK, REFER to the appropriate System Wiring Diagrams article to identify the possible causes of the circuit short.

  2. B2 CHECK THE LH FRONT WINDOW CONTROL SWITCH POWER CIRCUIT FOR AN OPEN 
    • Ignition OFF.
    • Disconnect: BCM  C2280D.
    • Measure the resistance between LH front window control switch C504A-2 (Crew Cab) or C535-7 (regular and SuperCab), circuit CBP01 (BU), harness side and BCM  C2280D-27, circuit CBP01 (BU), harness side.
      Fig 2: Measuring Resistance Between LH Front Window Control Switch And BCM Connector End View
      G07485969Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes:  GO to PINPOINT TEST F  to DIAGNOSE the accessory delay relay system.
    • No:  REPAIR the circuit. TEST the system for normal operation.
  3. B3 CHECK THE LH FRONT WINDOW CONTROL SWITCH GROUND 
    • Ignition OFF.
    • Measure the resistance between LH front window control switch C504B-7 (Crew Cab) or C535-2 (regular and SuperCab), circuit GD137 (BK/WH), harness side and ground.
      Fig 3: Measuring Resistance Between LH Front Window Control Switch C504B-7 And Ground Connector End View
      G07485970Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes:  INSTALL a new LH front window control switch. REFER to WINDOW CONTROL SWITCH .
    • No:  REPAIR the circuit. TEST the system for normal operation.
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