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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 2007 Lincoln MKX and 2007 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.
  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)
    • Key in ON position.
      • Fig 1: Measuring Voltage Between The Inoperative Rear Window Connector & Ground
      GF0028368Courtesy of FORD MOTOR CO.
      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.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  F4.
    2. NO  : Go to  F2.
  2. F2 CHECK THE VOLTAGE TO THE LH FRONT WINDOW CONTROL SWITCH 
    • Disconnect: LH Front Window Control Switch C535B
      • Fig 2: Measuring Voltage Between LH Front Window Control Switch C535B-3, Circuit CBP47 (GN/BU)
      GF0028369Courtesy of FORD MOTOR CO.
    • Measure the voltage between LH front window control switch C535B-3, circuit CBP47 (GN/BU), and ground.
    • Is the voltage greater than 10 volts? 
    1. YES  : Go to  F3.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
  3. F3 CHECK FOR AN OPEN IN CIRCUIT CPW14 (VT/WH) 
    • Key in OFF position.
      • Fig 3: Measuring Resistance Between Inoperative Rear Window Connector & LH Front Window Control Switch Connector
      GF0030919Courtesy of FORD MOTOR CO.
    • 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.
    • Is the resistance less than 5 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.
  4. F4 CHECK THE GROUNDS TO THE INOPERATIVE REAR WINDOW CONTROL SWITCH 
    • Key in OFF position.
      • Fig 4: Measuring Resistance Between Inoperative Window Control Switch & Ground
      GF0030920Courtesy of FORD MOTOR CO.
    • 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.
    • Are the resistances less than 5 ohms? 
    1. YES  : Go to  F7.
    2. NO  : Go to  F5.
  5. F5 CHECK THE CIRCUITS TO THE INOPERATIVE REAR WINDOW CONTROL SWITCH FOR AN OPEN 
    • Key in OFF position.
    • Disconnect: LH Front Window Control Switch C535B
      • Fig 5: Measuring Resistance Between LH Front Window Control Switch C535B-1, Circuit CPW15 (YE)
      GF0030921Courtesy of FORD MOTOR CO.
    • For an inoperative LH rear power window, measure the resistance between LH front window control switch C535B-1, circuit CPW15 (YE) 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) and LH rear window control switch C701-6, circuit CPW16 (BU/OG) harness side.
      • Fig 6: Measuring Resistance Between LH Front Window Control Switch C535B-7, Circuit CPW17 (BN/GN)
      GF0030922Courtesy of FORD MOTOR CO.
    • For an inoperative RH rear power window, measure the resistance between LH front window control switch C535B-7, circuit CPW17 (BN/GN) and RH window control switch C819-1, circuit CPW17 (BN/GN), harness side; and between LH front window control switch C535B-8, circuit CPW18 (GY/VT) and RH rear window control switch C819-6, circuit CPW18 (GY/VT) harness side.
    • Are the resistances less than 5 ohms? 
    1. YES  : Go to  F6.
    2. 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 
      Fig 7: Measuring Resistance Between LH Front Window Control Switch C535B-6, Circuit GD133 (BK)
      GF0030923Courtesy of FORD MOTOR CO.
    • Measure the resistance between LH front window control switch C535B-6, circuit GD133 (BK), and ground.
    • Is the resistance less than 5 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.
  7. F7 CHECK THE INOPERATIVE WINDOW CONTROL SWITCH 
    • Connect: LH Front Window Control Switch C535B
    • Key in ON position.
    • 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.
      • Fig 8: Connecting Fused Jumper Wire Between RH Rear Window Control Switch C801-2, Circuit CPW23 (GY)
      GF0028375Courtesy of FORD MOTOR CO.
    • 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.
    • 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.
      • Fig 9: Connecting Fused Jumper Wire Between RH Rear Window Control Switch C801-2, Circuit CPW22 (GN/VT)
      GF0028376Courtesy of FORD MOTOR CO.
    • For an inoperative RH rear window, connect a fused jumper wire between RH rear window control switch C801-2, circuit CPW22 (GN/VT), 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.
    • Did the inoperative window operate correctly? 
    1. YES  : INSTALL a new LH or RH rear window control switch. REFER to Window Control Switch . TEST the system for normal operation.
    2. NO  : Go to  F8.
  8. F8 CHECK THE POWER WINDOW MOTOR CIRCUITS 
    • Key in OFF position.
    • 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.
      • Fig 10: Measuring Resistance Between RH Rear Window Control Switch C801-2, Circuit CPW23 (GY)
      GF0030924Courtesy of FORD MOTOR CO.
    • 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.
    • 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.
      • Fig 11: Measuring Resistance Between RH Rear Window Control Switch C801-5, Circuit CPW24 (WH/VT)
      GF0030925Courtesy of FORD MOTOR CO.
    • 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 C703-1, circuit CPW24 (WH/VT), harness side.
    • Is the resistance less than 5 ohms? 
    1. YES  : INSTALL a new LH or RH rear window motor. REFER to Window Regulator Motor . TEST the system for normal operation.
    2. NO  : REPAIR the circuit. TEST the system for normal operation.
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