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Pinpoint Test H: A Single Power Window Is Inoperative - MKZ, LH Or RH Rear

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. H1 CHECK THE VOLTAGE TO THE LH OR RH REAR WINDOW CONTROL SWITCH 
    • Disconnect: Inoperative Rear Window Control Switch C701 (LH) or C819 (RH).
    • Ignition ON.
      • NOTE: Set the master window control lockout switch to the UNLOCK position.
      Fig 1: Measuring Voltage Between Inoperative Rear Window Connector And Ground
      G06259593Courtesy of FORD MOTOR CO.
    • 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 C819-3, 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? 
      • Yes:  GO to H2.
      • No:  REPAIR the circuit. TEST the system for normal operation.
  2. H2 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 C819-1, circuit CPW17 (BN/GN), harness side and ground; and between RH rear window control switch C819-6, 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 2: Measuring Resistance Between Inoperative Window Control Switch And Ground
      G06259596Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
      • Yes:  GO to  H4.
      • No:  GO to H3.
  3. H3 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 power window, measure the resistance between master window control switch C535B-1, circuit CPW15 (YE) and LH rear window control switch C701-1, circuit CPW15 (YE), harness side; and between master window control switch C535B-2, circuit CPW16 (BU/OG) and LH rear window control switch C701-6, circuit CPW16 (BU/OG), harness side.
      Fig 3: Checking Circuits To Inoperative Rear Window Control Switch For Open (For Inoperative LH Rear Power Window)
      G07789074Courtesy of FORD MOTOR CO.
    • For an inoperative RH rear power window, measure the resistance between master window control switch C535B-7, circuit CPW17 (BN/GN) and RH window control switch C819-1, circuit CPW17 (BN/GN), harness side; and between master window control switch C535B-8, circuit CPW18 (GY/VT) and RH rear window control switch C819-6, circuit CPW18 (GY/VT), harness side.
      Fig 4: Checking Circuits To Inoperative Rear Window Control Switch For Open (For Inoperative RH Rear Power Window)
      G07789075Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
      • Yes:  INSTALL a new master window control switch. REFER to Window Control Switch  . TEST the system for normal operation.
      • No:  REPAIR the circuit(s) for an open. TEST the system for normal operation.
  4. H4 CHECK THE INOPERATIVE WINDOW CONTROL SWITCH 
    • Connect: Master 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 CPW21 (BN), 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 CPW22 (GN/VT), 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 C819-2, circuit CPW23 (GY), harness side and RH rear window control switch C819-3, circuit CPW14 (VT/WH), harness side; and between RH rear window control switch C819-5, circuit CPW24 (WH/VT), harness side and RH rear window control switch C819-6, circuit CPW18 (GY/VT), harness side. The RH rear window should operate in the downward direction.
      Fig 5: Checking Inoperative Window Control Switch
      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 CPW21 (BN), 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 CPW22 (GN/VT), 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 C819-2, circuit CPW23 (GY), harness side and RH rear window control switch C819-1, circuit CPW17 (BN/GN), harness side; and between RH rear window control switch C819-5, circuit CPW24 (WH/VT), harness side and RH rear window control switch C819-3, circuit CPW14 (VT/WH), harness side. The RH rear window should operate in the upward direction.
      Fig 6: Checking Inoperative Window Control Switch
      G06259601Courtesy of FORD MOTOR CO.
    • Did the inoperative window operate correctly? 
      • Yes:  INSTALL a new master window control switch or RH rear window control switch. REFER to Window Control Switch  . TEST the system for normal operation.
      • No:  GO to H5.
  5. H5 CHECK THE POWER WINDOW MOTOR CIRCUITS 
    • Ignition OFF.
    • Disconnect: Inoperative Rear Window Motor C703 (LH) or C803 (RH).
    • For an inoperative LH rear window, measure the resistance between LH rear window control switch C701-5, circuit CPW22 (GN/VT), harness side and LH rear window motor C703-1, circuit CPW22 (GN/VT), harness side.
    • For an inoperative RH rear window, measure the resistance between RH rear window control switch C819-5, circuit CPW24 (WH/VT), harness side and RH rear window motor C803-1, circuit CPW24 (WH/VT), harness side.
      Fig 7: Checking Power Window Motor Circuits
      G06259602Courtesy of FORD MOTOR CO.
    • For an inoperative LH rear window, measure the resistance between LH rear window control switch C701-2, circuit CPW21 (BN), harness side and LH rear window motor C703-2, circuit CPW21 (BN), harness side.
    • For an inoperative RH rear window, measure the resistance between RH rear window control switch C819-2, circuit CPW23 (GY), harness side and RH rear window motor C803-2, circuit CPW23 (GY), harness side.
      Fig 8: Checking Power Window Motor Circuits
      G07789078Courtesy 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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