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Pinpoint Test A: All Power Windows Are Inoperative

  1. A1 CHECK CIRCUIT CBP47 (GN/BU) FOR VOLTAGE 
    • Disconnect: LH Front Window Control Switch C504a
    • Key in ON position.
    • Measure the voltage between LH front window control switch C504a-5, circuit CBP47 (GN/BU), harness side and ground.
      • Fig 1: Measuring Voltage
      GF0016478Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  A3.
    2. NO  : Go to  A2.
  2. A2 CHECK CIRCUIT CBP47 (GN/BU) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: SJB C2280d
    • Measure the resistance between LH front window control switch C504a-5, circuit CBP47 (GN/BU), harness side and SJB C2280d-32, circuit CBP47 (GN/BU), harness side.
      • Fig 2: Measuring Resistance
      GF0045452Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to Pinpoint Test H  to diagnose the accessory delay relay circuit.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  3. A3 CHECK CIRCUIT GD133 (BK) FOR AN OPEN 
    • Disconnect: LH Front Window Control Switch C504b
    • Measure the resistance between LH front window control switch C504b-4, circuit GD133 (BK), harness side and ground.
      • Fig 3: Measuring Resistance
      GF0016480Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. YES  : INSTALL a new LH front window control switch. REFER to Window Control Switch . TEST the system for normal operation.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
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