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Home >> Ford >> 2009 >> Flex Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1086 (Windows And Glass) >> Diagnostic Tests >> Glass, Frames and Mechanisms >> Pinpoint Tests >> Pinpoint Test C: A Single Power Window is Inoperative - LH Front, MKX >> Pinpoint Test C: A Single Power Window Is Inoperative - LH Front, MKX

Pinpoint Test C: A Single Power Window Is Inoperative - LH Front, 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. C1 CHECK THE POWER TO THE WINDOW MOTOR 
    • Disconnect: LH Front Window Motor C540
    • Fig 1: Measuring Voltage Between LH Front Window Motor C540-1, Circuit SBP04 (GN/RD) & Ground
      GF0030907Courtesy of FORD MOTOR CO.
    • Measure the voltage between LH front window motor C540-1, circuit SBP04 (GN/RD), harness side and ground.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  C2.
    2. NO  : VERIFY smart junction box (SJB) fuse 4 (30A) is OK. If OK, REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH front window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
  2. C2 CHECK CIRCUIT CBP41 (BU) FOR AN OPEN 
    • Key in ON position.
    • Fig 2: Measuring Voltage Between LH Front Window Motor C540-3, Circuit CBP41 (BU) & Ground
      GF0030908Courtesy of FORD MOTOR CO.
    • Measure the voltage between LH front window motor C540-3, circuit CBP41 (BU), harness side and ground.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  C3.
    2. NO  : REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH front window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
  3. C3 CHECK CIRCUIT GD133 (BK) FOR AN OPEN 
    • Key in OFF position.
    • Fig 3: Measuring Voltage Between LH Front Window Motor C540-4, Circuit GD133 (BK) & Ground
      GF0030909Courtesy of FORD MOTOR CO.
    • Measure the resistance between LH front window motor C540-4, circuit GD133 (BK), harness side and ground.
    • Is the resistance less than 5 ohms? 
    1. YES  : Go to  C4.
    2. NO  : REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH front window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
  4. C4 CHECK THE LH FRONT WINDOW CONTROL SWITCH-TO-LH FRONT WINDOW MOTOR FEEDS 
    • Disconnect: LH Front Window Control Switch C535A
    • Fig 4: Measuring Voltage Between LH Front Window Motor C540-6, Circuit CPW10 (YE/VT) & Ground
      GF0030910Courtesy of FORD MOTOR CO.
    • Measure the resistance between LH front window motor C540-6, circuit CPW10 (YE/VT), harness side and LH front window control switch C535A-7, circuit CPW10 (YE/VT), harness side.
    • Fig 5: Measuring Voltage Between LH Front Window Motor C540-2, Circuit CPW29 (VT/GY) & Ground
      GF0030911Courtesy of FORD MOTOR CO.
    • Measure the resistance between LH front window motor C540-2, circuit CPW29 (VT/GY), harness side and LH front window control switch C535A-8, circuit CPW29 (VT/GY), harness side.
    • Fig 6: Measuring Voltage Between LH Front Window Motor C540-5, Circuit CPW11 (BU/GY) & Ground
      GF0030912Courtesy of FORD MOTOR CO.
    • Measure the resistance between LH front window motor C540-5, circuit CPW11 (BU/GY), harness side and LH front window control switch C535A-4, circuit CPW11 (BU/GY), harness side.
    • Are the resistances less than 5 ohms? 
    1. YES  : Go to  C5.
    2. NO  : REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the LH front window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
  5. C5 CHECK THE LH FRONT WINDOW CONTROL SWITCH 
    • Carry out the LH Front Window Control Switch Component Test. Refer to COMPONENT TESTING.
    • Did the window control switch pass the component test? 
    1. YES  : INSTALL a new LH front window motor. REFER to Glass, Frames and Mechanisms - Exploded View, Front Door  and Window Regulator and Motor - Front Door . INITIALIZE the LH front window motor. REFER to Window Motor Initialization . TEST the system for normal operation.
    2. NO  : INSTALL a new LH front window control switch. REFER to Window Control Switch . INITIALIZE the LH front window motor. REFER to Window Motor Initialization . TEST the system for normal operation.