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Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 1164 (Windows And Glass) >> Diagnostic Tests >> Glass, Frames and Mechanisms >> Pinpoint Tests >> Pinpoint Test E: A Single Power Window is Inoperative - RH Rear Window >> Pinpoint Test E: A Single Power Window Is Inoperative - RH Rear Window

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

WARNING: This page is about a different car, the 2008 Mercury Mariner and 2008 Ford Escape. However, it is still accessible from the selected car via links, so may be relevant.
  1. E1 CHECK THE RH REAR WINDOW OPERATION FROM THE LH FRONT WINDOW CONTROL SWITCH 
    • Key in ON position.
    • 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? 
    1. YES  : Go to  E2.
    2. NO  : Go to  E3.
  2. E2 CHECK CIRCUIT CPW14 (VT/WH) FOR VOLTAGE 
    • Key in OFF position.
    • Disconnect: RH Rear Window Control Switch C801
    • Key in ON position.
    • Measure the voltage between RH rear window control switch C801-3, circuit CPW14 (VT/WH), harness side and ground.
      • Fig 1: Checking Circuit For Voltage
      GF0023756Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    1. YES  : INSTALL a new RH rear window control switch. REFER to Window Control Switch . TEST the system for normal operation.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  3. E3 CHECK CIRCUITS CPW23 (GY) AND CPW24 (WH/VT) FOR VOLTAGE AND GROUND 
    • Key in OFF position.
    • Disconnect: RH Rear Window Motor C803
    • Key in ON position.
    • 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 positions.
      • Fig 2: Measuring Voltage
      GF0041790Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts in both switch directions? 
    1. YES  : INSTALL a new window regulator and motor. REFER to Window Regulator - Rear Door . TEST the system for normal operation.
    2. NO  : Go to  E4.
  4. E4 CHECK THE RH REAR WINDOW CONTROL SWITCH 
    • Key in OFF position.
    • Disconnect: RH Rear Window Control Switch C801
    • Carry out the Window Control Switch component test on the RH rear window control switch. Refer to appropriate COMPONENT TESTING article.
    • Did the RH rear window control switch pass the component test? 
    1. YES  : Go to  E5.
    2. 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 C801-5, circuit CPW24 (WH/VT), harness side and RH rear window motor C803-1, circuit CPW24 (WH/VT), harness side; and between RH rear window control switch C801-2, circuit CPW23 (GY), harness side, and RH rear window motor C803-2, circuit CPW23 (GY), harness side.
      • Fig 3: Measuring Resistance
      GF0041792Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    1. YES  : Go to  E6.
    2. 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 For Short To Ground
      GF0023758Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 
    1. YES  : Go to  E7.
    2. 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-4, circuit CPW17 (BN/GN), harness side and RH rear window control switch C801-1, circuit CPW17 (BN/GN) harness side; and between LH front window control switch C504b-8, circuit CPW18 (GY/VT), harness side and RH rear window control switch C801-6, circuit CPW18 (GY/VT), harness side.
      • Fig 5: Measuring Resistance
      GF0041795Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    1. YES  : Go to  E8.
    2. 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 For Short To Ground
      GF0023760Courtesy of FORD MOTOR CO.
    • Are the resistances greater than 10,000 ohms? 
    1. YES  : INSTALL a new LH front window control switch. REFER to Window Control Switch . TEST the system for normal operation.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
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