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Pinpoint Test F: A Single Power Window Is Inoperative - LH Or RH Rear, 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. F1 CHECK THE VOLTAGE TO THE LH REAR OR RH REAR WINDOW CONTROL SWITCH 
    • Disconnect: Inoperative Rear Window Control Switch C701 (LH) or C801 (RH).
    • Ignition ON.
      • NOTE: Set the LH front window lock switch to the UNLOCK position.
    • Measure the voltage between the inoperative rear window connector and ground:
      • for the RH rear window control switch, measure the voltage between RH rear window control switch C801-3, circuit CPW14 (VT/WH), harness side and ground.
      • for the LH rear window control switch, measure the voltage between C701-3, circuit CPW14 (VT/WH), harness side and ground.
        Fig 1: Measuring Voltage Between Rear Window Connector And Ground
        G06259593Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes:  GO to  F4.
    • No:  GO to F2  .
  2. F2 CHECK THE VOLTAGE TO THE LH FRONT WINDOW CONTROL SWITCH 
    • Disconnect: LH Front Window Control Switch C535B.
    • Measure the voltage between LH front window control switch C535B-3, circuit CBP47 (GN/BU), harness side and ground.
      Fig 2: Measuring Voltage Between LH Front Window Control Switch C535B-3 And Ground
      G06504571Courtesy of FORD MOTOR CO.
    • Is the voltage greater than 10 volts? 
    • Yes:  GO to F3  .
    • No:  REPAIR the circuit. TEST the system for normal operation.
  3. F3 CHECK FOR AN OPEN IN CIRCUIT CPW14 (VT/WH) 
    • Ignition OFF.
    • Measure the resistance between the inoperative rear window connector and the LH front window control switch connector.
      • for the RH rear window control switch, measure the resistance between RH window control switch C801-3, circuit CPW14 (VT/WH), harness side and LH front window control switch C535B-4, circuit CPW14 (VT/WH), harness side.
      • for the LH rear window control switch, measure the resistance between LH window control switch C701-3, circuit CPW14 (VT/WH), harness side and LH front window control switch C535B-4, circuit CPW14 (VT/WH), harness side.
        Fig 3: Measuring Resistance Between Rear Window And LH Front Window Control Switch Connector Terminals
        G06504572Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 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.
  4. F4 CHECK THE GROUNDS TO THE INOPERATIVE REAR WINDOW CONTROL SWITCH 
    • Ignition OFF.
    • Measure the resistance between the inoperative window control switch and ground:
      • for the RH rear window control switch, 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.
      • for the LH rear window control switch, measure the resistance between LH rear window control switch C701-1, circuit CPW15 (YE), harness side and ground; and between LH rear window control switch C701-6, circuit CPW16 (BU/OG), harness side and ground.
        Fig 4: Measuring Resistance Between Window Control Switch And Ground
        G06504573Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes:  GO to  F7.
    • No:  GO to F5  .
  5. F5 CHECK THE CIRCUITS TO THE INOPERATIVE REAR WINDOW CONTROL SWITCH FOR AN OPEN 
    • Ignition OFF.
    • Disconnect: LH Front Window Control Switch C535B.
    • For an inoperative LH rear window, measure the resistance between LH front window control switch C535B-1, circuit CPW15 (YE), harness side and LH rear window control switch C701-1, circuit CPW15 (YE), harness side; and between LH front window control switch C535B-2, circuit CPW16 (BU/OG), harness side and LH rear window control switch C701-6, circuit CPW16 (BU/OG), harness side.
      Fig 5: Measuring Resistance Between LH Front Window Control Switch C535B-1 And LH Rear Window Control Switch C701-1
      G06504574Courtesy of FORD MOTOR CO.
    • For an inoperative RH rear window, measure the resistance between LH front window control switch C535B-7, circuit CPW17 (BN/GN), harness side and RH window control switch C801-1, circuit CPW17 (BN/GN), harness side; and between LH front window control switch C535B-8, circuit CPW18 (GY/VT), harness side and RH rear window control switch C801-6, circuit CPW18 (GY/VT), harness side.
      Fig 6: Measuring Resistance Between LH Front Window Control Switch C535B-7 And RH Window Control Switch C801-1
      G06504575Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes:  GO to F6  .
    • No:  REPAIR the circuit(s) for an open. TEST the system for normal operation.
  6. F6 CHECK THE GROUND TO THE LH FRONT WINDOW CONTROL SWITCH 
    • Measure the resistance between LH front window control switch C535B-6, circuit GD133 (BK), harness side and ground.
      Fig 7: Measuring Resistance Between LH Front Window Control Switch C535B-6 And Ground
      G06504576Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 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.
  7. F7 CHECK THE INOPERATIVE WINDOW CONTROL SWITCH 
    • Connect: LH Front Window Control Switch C535B.
    • Ignition ON.
    • For an inoperative LH rear window, connect a fused jumper wire between LH rear window control switch C701-2, circuit CPW22 (GN/VT), harness side and LH rear window control switch C701-3, circuit CPW14 (VT/WH), harness side; and between LH rear window control switch C701-5, circuit CPW21 (BN), harness side and LH rear window control switch C701-6, circuit CPW16 (BU/OG), harness side. The LH rear window should operate in the downward direction.
    • For an inoperative RH rear window, connect a fused jumper wire between RH rear window control switch C801-2, circuit CPW23 (GY), harness side and RH rear window control switch C801-3, circuit CPW14 (VT/WH), harness side; and between RH rear window control switch C801-5, circuit CPW24 (WH/VT), harness side and RH rear window control switch C801-6, circuit CPW18 (GY/VT), harness side. The RH rear window should operate in the downward direction.
      Fig 8: Connecting Fused Jumper Wire Between RH Rear Window Control Switch C801-2 And C801-3
      G06259600Courtesy of FORD MOTOR CO.
    • For an inoperative LH rear window, connect a fused jumper wire between LH rear window control switch C701-2, circuit CPW22 (GN/VT), harness side and LH rear window control switch C701-1, circuit CPW15 (YE), harness side; and between LH rear window control switch C701-5, circuit CPW21 (BN), harness side and LH rear window control switch C701-3, circuit CPW14 (VT/WH), harness side. The LH rear window should operate in the upward direction.
    • For an inoperative RH rear window, connect a fused jumper wire between RH rear window control switch C801-2, circuit CPW23 (GY), harness side and RH rear window control switch C801-1, circuit CPW17 (BN/GN), harness side; and between RH rear window control switch C801-5, circuit CPW24 (WH/VT), harness side and RH rear window control switch C801-3, circuit CPW14 (VT/WH), harness side. The RH rear window should operate in the upward direction.
      Fig 9: Connecting Fused Jumper Wire Between RH Rear Window Control Switch C801-2 And C801-1
      G06259601Courtesy of FORD MOTOR CO.
    • Did the inoperative window operate correctly? 
    • Yes:  INSTALL a new LH or RH rear window control switch. REFER to WINDOW CONTROL SWITCH . TEST the system for normal operation.
    • No:  GO to F8  .
  8. F8 CHECK THE POWER WINDOW MOTOR CIRCUITS 
    • Ignition OFF.
    • Disconnect: Inoperative Rear Window Motor C703 (LH) or C828 (RH).
    • For an inoperative LH rear window, measure the resistance between LH rear window control switch C701-2, circuit CPW22 (GN/VT), harness side and LH rear window motor C703-2, circuit CPW22 (GN/VT), harness side.
    • For an inoperative RH rear window, measure the resistance between RH rear window control switch C801-2, circuit CPW23 (GY), harness side and RH rear window motor C828-2, circuit CPW23 (GY), harness side.
      Fig 10: Measuring Resistance Between RH Rear Window Control Switch C801-2 And RH Rear Window Motor C828-2
      G06504579Courtesy of FORD MOTOR CO.
    • For an inoperative LH rear window, measure the resistance between LH rear window control switch C701-5, circuit CPW21 (BN), harness side and LH rear window motor C703-1, circuit CPW21 (BN), harness side.
    • For an inoperative RH rear window, measure the resistance between RH rear window control switch C801-5, circuit CPW24 (WH/VT), harness side and RH rear window motor C828-1, circuit CPW24 (WH/VT), harness side.
      Fig 11: Measuring Resistance Between RH Rear Window Control Switch C801-5 And RH Rear Window Motor C828-1
      G06504580Courtesy of FORD MOTOR CO.
    • Is the resistance less than 5 ohms? 
    • Yes:  INSTALL a new LH or RH rear window motor. REFER to WINDOW REGULATOR MOTOR . TEST the system for normal operation.
    • No:  REPAIR the circuit. TEST the system for normal operation.
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