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Pinpoint Test C: A Single Power Window Is Inoperative - LH Front

WARNING: This page is about a different car, the 2009 Ford Pickup, 2009 Ford F550 Super Duty, 2009 Ford F450 Super Duty, and 2009 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: If the LH front window is already in the full down position, skip to pinpoint Step C2.
  1. C1 CHECK THE LH FRONT POWER WINDOW DOWN OPERATION 
    • Key in OFF position.
    • Disconnect: LH Front Window Control Switch C504a (Crew Cab) or C504b (Regular and SuperCab)
    • Key in ON position.
      • Fig 1: Checking LH Front Power Window Down Operation - Regular Or SuperCab
      GF0047995Courtesy of FORD MOTOR CO.
    • For regular or SuperCab, connect a 30A fused jumper wire between LH front window control switch C504b-7, circuit CBP47 (GN/BU) harness side and LH window control switch C504b-1, circuit CPW10 (YE/VT), harness side; and between LH front window control switch C504b-5, circuit CPW11 (BU/GY), harness side and LH front window control switch C504b-2, circuit GD179 (BK/VT), harness side.
      • Fig 2: Checking LH Front Power Window Down Operation - Crew Cab
      GF0047996Courtesy of FORD MOTOR CO.
    • For Crew Cab, connect a 30A fused jumper wire between LH front window control switch C504a-2, circuit CBP47 (GN/BU) harness side and LH window control switch C504a-1, circuit CPW10 (YE/VT), harness side; and between LH front window control switch C504a-5, circuit CPW11 (BU/GY), harness side and ground.
    • Does the LH front window move down? 
    1. YES  : REMOVE the jumper wires. Go to  C2.
    2. NO  : REMOVE the jumper wires. Go to  C3.
  2. C2 CHECK THE LH FRONT POWER WINDOW UP OPERATION 
    • Key in ON position.
      • Fig 3: Checking LH Front Power Window Up Operation - Regular Or SuperCab
      GF0047997Courtesy of FORD MOTOR CO.
    • For regular or SuperCab, connect a 30A fused jumper wire between LH front window control switch C504b-7, circuit CBP47 (GN/BU) harness side and LH window control switch C504b-5, circuit CPW11 (BU/GY), harness side; and between LH front window control switch C504b-1, circuit CPW10 (YE/VT), harness side and LH front window control switch C504b-2, circuit GD179 (BK/VT), harness side.
      • Fig 4: Checking LH Front Power Window Up Operation - Crew Cab
      GF0047998Courtesy of FORD MOTOR CO.
    • For Crew Cab, connect a 30A fused jumper wire between LH front window control switch C504a-2, circuit CBP47 (GN/BU) harness side and LH window control switch C504a-5, circuit CPW11 (BU/GY), harness side; and between LH front window control switch C504a-1, circuit CPW10 (YE/VT), harness side and ground.
    • Does the LH front window move up? 
    1. YES  : INSTALL a new LH front window control switch. REFER to Window Control Switch .
    2. NO  : REMOVE the jumper wires. Go to  C3.
  3. C3 CHECK CIRCUIT CPW10 (YE/VT) FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: LH Front Window Motor C524
      • Fig 5: Checking Circuit CPW10 (YE/VT) For An Open
      GF0047999Courtesy of FORD MOTOR CO.
    • Measure the resistance between LH front window motor C524-2, circuit CPW10 (YE/VT) harness side and LH front window control switch C504b-1 (regular and SuperCab) or C504a-1 (Crew Cab), circuit CPW10 (YE/VT) harness side.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  C4.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  4. C4 CHECK CIRCUIT CPW11 (BU/GY) FOR AN OPEN 
      Fig 6: Checking Circuit CPW11 (BU/GY) For An Open
      GF0048000Courtesy of FORD MOTOR CO.
    • Measure the resistance between LH front window motor C524-1, circuit CPW11 (BU/GY) harness side and LH front window control switch C504b-5 (regular and SuperCab) or C504a-5 (Crew Cab), circuit CPW11 (BU/GY) harness side.
    • Is the resistance less than 5 ohms? 
    1. YES  : Make sure there are no mechanical binding conditions preventing the glass mechanism from operating correctly. If a mechanical binding issue is found, repair as necessary. If no mechanical binding condition exists, INSTALL a new LH front window motor. REFER to Window Regulator Motor - Front Door . TEST the system for normal operation.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
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