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Pinpoint Test E: A Single Power Window Is Inoperative - RH Rear Window

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 RH REAR WINDOW OPERATION FROM THE LH FRONT WINDOW CONTROL SWITCH 
    • Ignition ON.
    • Operate the RH rear window from the LH front window control switch.
    • Does the RH rear window operate from the LH front window control switch? 
      • Yes  : GO to E2.
      • No  : GO to  E3.
  2. E2 CHECK CIRCUIT CPW14 (VT/WH) FOR VOLTAGE 
    • Ignition OFF.
    • Disconnect: RH Rear Window Control Switch C801.
    • Ignition ON.
    • NOTE: Set the LH window control switch to the UNLOCK position.

      Measure the voltage between RH rear window control switch C801-3, circuit CPW14 (VT/WH), harness side and ground.

      Fig 1: Measuring Voltage Between Rh Rear Window Control Switch C801-3, Circuit CPW14 (VT/WH) And Ground
      G07805446Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
      • Yes  : INSTALL a new RH rear window control switch. REFER to WINDOW CONTROL SWITCH . TEST the system for normal operation.
      • No  : REPAIR the circuit. TEST the system for normal operation.
  3. E3 CHECK CIRCUITS CPW23 (GY) AND CPW24 (WH/VT) FOR VOLTAGE AND GROUND 
    • Ignition OFF.
    • Disconnect: RH Rear Window Motor C803.
    • Ignition ON.
    • Measure the voltage between RH rear window motor C803-2, circuit CPW23 (GY), harness side and RH rear window motor C803-1, circuit CPW24 (WH/VT), harness side while operating the right rear window control switch in the DOWN then UP position.
      Fig 2: Checking Circuits CPW23 (GY) And CPW24 (WH/VT) For Voltage And Ground
      G07805447Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts when the switch is in the DOWN position; and greater than -10 volts when the switch is in the UP position? 
  4. E4 CHECK THE RH REAR WINDOW CONTROL SWITCH 
    • Ignition OFF.
    • Disconnect: RH Rear Window Control Switch C801.
    • Carry out the window control switch component test on the RH rear window control switch.

      Refer to COMPONENT TESTING article for component testing.

    • Did the RH rear window control switch pass the component test? 
      • Yes  : GO to E5.
      • No  : INSTALL a new RH rear window control switch. REFER to WINDOW CONTROL SWITCH . TEST the system for normal operation.
  5. E5 CHECK CIRCUITS CPW23 (GY) AND CPW24 (WH/VT) FOR AN OPEN 
    • Measure the resistance between RH rear window control switch C801, harness side and RH rear window motor C803, harness side using the following chart:
      RH Rear Window Control Switch Circuit RH Rear Window Motor
      C801-5 CPW24 (WH/VT) C803-1
      C801-2 CPW23 (GY) C803-2
      Fig 3: Checking Circuits CPW23 (GY) And CPW24 (WH/VT) For Open
      G07805448Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
      • Yes  : GO to E6.
      • No  : REPAIR the circuit. TEST the system for normal operation.
  6. E6 CHECK CIRCUITS CPW23 (GY) AND CPW24 (WH/VT) FOR A SHORT TO GROUND 
    • Measure the resistance between RH rear window control switch C801-5, circuit CPW24 (WH/VT), harness side and ground; and between RH rear window control switch C801-2, circuit CPW23 (GY), harness side and ground.
      Fig 4: Checking Circuits CPW23 (GY) And CPW24 (WH/VT) For Short To Ground
      G07805449Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10, 000 ohms? 
      • Yes  : GO to E7.
      • No  : REPAIR the circuit(s) in question. TEST the system for normal operation.
  7. E7 CHECK CIRCUITS CPW17 (BN/GN) AND CPW18 (GY/VT) FOR AN OPEN 
    • Measure the resistance between LH front window control switch C504B, harness side and RH rear window control switch C801, harness side using the following chart:
      LH Front Window Control Switch Circuit RH Rear Window Control Switch
      C504B-4 CPW17 (BN/GN) C801-1
      C504B-8 CPW18 (GY/VT) C801-6
      Fig 5: Checking Circuits CPW17 (BN/GN) And CPW18 (GY/VT) For Open
      G07805450Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
      • Yes  : GO to E8.
      • No  : REPAIR the circuit. TEST the system for normal operation.
  8. E8 CHECK CIRCUITS CPW17 (BN/GN) AND CPW18 (GY/VT) FOR A SHORT TO GROUND 
    • Measure the resistance between RH rear window control switch C801-1, circuit CPW17 (BN/GN), harness side and ground; and between RH rear window control switch C801-6, circuit CPW18 (GY/VT), harness side and ground.
      Fig 6: Checking Circuits CPW17 (BN/GN) And CPW18 (GY/VT) For Short To Ground
      G07805451Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10, 000 ohms? 
      • Yes  : INSTALL a new LH 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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