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Pinpoint Test A: All Power Windows Are Inoperative - MKX

WARNING: This page is about a different car, the 2007 Lincoln MKX and 2007 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
  1. A1 CHECK CIRCUITS CBP41 (BU) AND CBP47 (GN/BU) FOR VOLTAGE 
    • Disconnect: LH Front Window Control Switch C535A
    • Disconnect: LH Front Window Control Switch C535B
    • Key in ON position.
      • Fig 1: Checking Circuit CBP02 (GN) And CPW30 (GY/YE) For Voltage
      GF0028348Courtesy of FORD MOTOR CO.
    • Measure the voltage between LH front window control switch C535A-3, circuit CBP41 (BU), harness side and ground; and between LH front window control switch C535B-3, circuit CBP47 (GN/BU), harness side and ground.
    • Is the voltage greater than 10 volts for both measurements? 
    1. YES  : INSTALL a new LH front window control switch. REFER to Window Control Switch . TEST the system for normal operation.
    2. NO  : VERIFY the SJB fuse 41 (15A) is OK. If OK, go to  A2.
  2. A2 CHECK CIRCUITS CBP41 (BU) AND CBP47 (GN/BU) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: SJB C2280D
      • Fig 2: Measuring Resistance Between LH Front Window Control Switch C535A-3, Circuit CBP41 (BU)
      GF0030905Courtesy of FORD MOTOR CO.
    • Measure the resistance between LH front window control switch C535A-3, circuit CBP41 (BU), harness side and SJB C2280D-16, circuit CBP41 (BU), harness side; and between LH front window control switch C535B-3, circuit CBP47 (GN/BU), harness side and SJB C2280D-32, circuit CBP47 (GN/BU), harness side.
    • Are the resistances less than 5 ohms for both measurements? 
    1. YES  : Go to Pinpoint Test L  to diagnose the delayed accessory relay circuit.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
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