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Pinpoint Test E: A Single Power Window Is Inoperative - RH Front, MKX

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: Use the correct probe adapter(s) from the Flex Probe Kit when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
  1. E1 CHECK THE LH FRONT WINDOW CONTROL SWITCH OPERATION 
    • Attempt to operate the RH window using the LH front power window control switch.
    • Does the RH window operate when using the LH front power window control switch? 
    • Yes:  GO to  E7.
    • No:  GO to E2  .
  2. E2 CHECK THE POWER TO THE WINDOW MOTOR 
    • Ignition OFF.
    • Disconnect: RH Front Window Motor C646.
    • Measure the voltage between RH front window motor C646-1, circuit SBP01 (RD), harness side and ground.
      Fig 1: Measuring Voltage Between RH Front Window Motor C646-1 And Ground
      G06504548Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes:  GO to E3  .
    • No:  VERIFY Smart Junction Box (SJB) fuse 1 (30A) is OK. If OK, REPAIR the circuit. DEINITIALIZE, then INITIALIZE the RH front window motor. REFER to WINDOW MOTOR INITIALIZATION . TEST the system for normal operation.

      If not OK, REFER to the SYSTEM WIRING DIAGRAMS for Edge or SYSTEM WIRING DIAGRAMS for MKX to identify the possible causes of the circuit short. REPAIR the circuit. DE-INITIALIZE, then INITIALIZE the RH front window motor. REFER to WINDOW MOTOR INITIALIZATION . TEST the system for normal operation.

  3. E3 CHECK CIRCUIT CBP41 (BU) FOR AN OPEN 
    • Ignition ON.
    • Measure the voltage between RH front window motor C646-3, circuit CBP41 (BU), harness side and ground.
      Fig 2: Measuring Voltage Between RH Front Window Motor C646-3 And Ground
      G06504549Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes:  GO to E4  .
    • No:  REPAIR the circuit. DEINITIALIZE, then INITIALIZE the RH front window motor. REFER to WINDOW MOTOR INITIALIZATION . TEST the system for normal operation.
  4. E4 CHECK CIRCUIT GD140 (BK/GN) FOR AN OPEN 
    • Measure the resistance between RH front window motor C646-4, circuit GD140 (BK/GN), harness side and ground.
      Fig 3: Measuring Resistance Between RH Front Window Motor C646-4 And Ground
      G06504550Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes:  GO to E5  .
    • No:  REPAIR the circuit. DEINITIALIZE, then INITIALIZE the RH front window motor. REFER to WINDOW MOTOR INITIALIZATION . TEST the system for normal operation.
  5. E5 CHECK THE LH FRONT WINDOW CONTROL SWITCH-TO-RH FRONT WINDOW MOTOR FEEDS 
    • Disconnect: LH Front Window Control Switch C535A.
    • Measure the resistance between RH front window motor C646-6, circuit CPW12 (GN/OG), harness side and LH front window control switch C535A-2, circuit CPW12 (GN/OG), harness side.
      Fig 4: Measuring Resistance Between RH Front Window Motor C646-6 And LH Front Window Control Switch C535A-2
      G06504563Courtesy of FORD MOTOR CO.
    • Measure the resistance between RH front window motor C646-2, circuit CPW31 (GN/WH), harness side and LH front window control switch C535A-1, circuit CPW31 (GN/WH), harness side.
      Fig 5: Measuring Resistance Between RH Front Window Motor C646-2 And LH Front Window Control Switch C535A-1
      G06504564Courtesy of FORD MOTOR CO.
    • Measure the resistance between RH front window motor C646-5, circuit CPW13 (BN/YE), harness side and LH front window control switch C535A-5, circuit CPW13 (BN/YE), harness side.
      Fig 6: Measuring Resistance Between RH Front Window Motor C646-5 And LH Front Window Control Switch C535A-5
      G06504565Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes:  GO to E6  .
    • No:  REPAIR the circuit. DEINITIALIZE, then INITIALIZE the RH front window motor. REFER to WINDOW MOTOR INITIALIZATION . TEST the system for normal operation.
  6. E6 CHECK THE LH FRONT WINDOW CONTROL SWITCH 
    • Carry out the LH front window control switch component test.

      Refer to COMPONENT TESTING for component testing.

    • Did the LH front window control switch pass the component test? 
  7. E7 CHECK CIRCUIT CBP41 (BU) FOR VOLTAGE 
    • Disconnect: RH Front Window Control Switch C648.
    • Ignition ON.
    • Measure the voltage between RH front window control switch C648-2, circuit CBP41 (BU), harness side and ground.
      Fig 7: Measuring Voltage Between RH Front Window Control Switch C648-2 And Ground
      G06259590Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes:  GO to E8  .
    • No:  REPAIR the circuit. TEST the system for normal operation.
  8. E8 CHECK THE LH FRONT WINDOW CONTROL SWITCH-TO-RH FRONT WINDOW CONTROL SWITCH CIRCUITS 
    • Ignition OFF.
    • Disconnect: LH Front Window Control Switch C535A.
    • Measure the resistance between RH front window control switch C648-5, circuit CPW12 (GN/OG), harness side and LH front window control switch C535A-2, circuit CPW12 (GN/OG), harness side.
      Fig 8: Measuring Resistance Between RH Front Window Control Switch C648-5 And LH Front Window Control Switch C535A-2
      G06259591Courtesy of FORD MOTOR CO.
    • Measure the resistance between RH front window control switch C648-4, circuit CPW31 (GN/WH), harness side and LH front window control switch C535A-1, circuit CPW31 (GN/WH), harness side.
      Fig 9: Measuring Resistance Between RH Front Window Control Switch C648-4 And LH Front Window Control Switch C535A-1
      G06504568Courtesy of FORD MOTOR CO.
    • Measure the resistance between RH front window control switch C648-3, circuit CPW13 (BN/YE), harness side and LH front window control switch C535A-5, circuit CPW13 (BN/YE), harness side.
      Fig 10: Measuring Resistance Between RH Front Window Control Switch C648-3 And LH Front Window Control Switch C535A-5
      G06504569Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes:  INSTALL a new RH front window control switch. REFER to WINDOW CONTROL SWITCH . TEST the system for normal operation.
    • No:  REPAIR the circuit. TEST the system for normal operation.
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