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Pinpoint Test A: All Power Windows Are Inoperative

WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
  1. A1 CHECK VOLTAGE TO THE LH FRONT WINDOW CONTROL SWITCH - CIRCUIT CBP47 (GN/BU) 
    • Key in OFF position.
    • Disconnect: LH Front Window Control Switch C504a and C504b
    • Key in ON position.
    • Measure the voltage between LH front window control switch C504a-2, circuit CBP47 (GN/BU), harness side and ground.
      • Fig 1: Measuring Voltage
      GF0041787Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  A2.
    2. NO  : INSPECT SJB circuit breaker 47 (30A). If OK, go to  A3 .
  2. A2 CHECK GROUND TO THE LH FRONT WINDOW CONTROL SWITCH - CIRCUIT GD149 (BK/GY) 
    • Key in OFF position.
    • Measure the resistance between LH front window control switch C504b-7, circuit GD149 (BK/GY), harness side and ground.
      • Fig 2: Measuring Resistance
      GF0041788Courtesy 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.
  3. A3 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-2, circuit CBP47 (GN/BU), harness side and SJB C2280d-32, circuit CBP47 (GN/BU), harness side.
      • Fig 3: Measuring Resistance
      GF0041789Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to Pinpoint Test I .
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
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