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Home >> Ford >> 2002 >> Cutaway 7.3 F >> Repair and Diagnosis >> External Pages >> Different car >> Section 2878 (Windows And 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 2010 Ford Pickup, 2010 Ford F550 Super Duty, 2010 Ford F450 Super Duty, and 2010 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 CIRCUIT CBP47 (GN/BU) FOR VOLTAGE 
    • Disconnect: LH Front Window Control Switch C504A (Crew Cab) or C535B (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 CBP47 (GN/BU), harness side and ground.
      Fig 1: Measuring Voltage Between LH Front Window Control Switch C504A-2 (Crew Cab) And Ground
      G06780596Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes:  GO to  B3.
    • No:  VERIFY SJB  circuit breaker 47 (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 CIRCUIT CBP47 (GN/BU) FOR AN OPEN 
    • Ignition OFF.
    • Disconnect: SJB  C2280D.
    • Measure the resistance between LH front window control switch C504A-2 (Crew Cab) or C535-7 (regular and SuperCab), circuit CBP47 (GN/BU), harness side and SJB  C2280D-32, circuit CBP47 (GN/BU), harness side.
      Fig 2: Measuring Resistance Between LH Front Window Control Switch C504A-2 (Crew Cab) And SJB C2280D-32
      G06780597Courtesy 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 CIRCUIT GD179 (BK/VT) FOR AN OPEN 
    • Ignition OFF.
    • Open the driver door.
    • Measure the resistance between LH front window control switch C504B-7 (Crew Cab) or C535-2 (regular and SuperCab), circuit GD179 (BK/VT), harness side and ground.
      Fig 3: Measuring Resistance Between LH Front Window Control Switch C504B-7 (Crew Cab) And Ground
      G06780598Courtesy 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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