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Pinpoint Test G: A Single Power Window Is Inoperative - LH 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. G1 CHECK THE LH REAR WINDOW OPERATION FROM THE MASTER WINDOW CONTROL SWITCH 
    • Ignition ON.
    • Operate the LH rear window from the master window control switch.
    • Does the LH rear window operate from the master window control switch? 
    • Yes  : GO to  G2.
    • No  : GO to  G3.
  2. G2 CHECK FOR VOLTAGE TO THE LH REAR WINDOW CONTROL SWITCH 
    • Ignition OFF.
    • Disconnect: LH Rear Window Control Switch C701.
    • Ignition ON.
      • NOTE: Make sure the window lock-out switch is in the UNLOCK position.
      Fig 1: Measuring Voltage Between LH Rear Window Control Switch C701-2, Circuit CPW01 (BN/BU), Harness Side And Ground
      G06938535Courtesy of FORD MOTOR CO.
    • Measure the voltage between LH rear window control switch C701-2, circuit CPW01 (BN/BU), harness side and ground.
    • Is the voltage greater than 10 volts? 
    • Yes  : INSTALL a new LH 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. G3 CHECK FOR VOLTAGE AND GROUND TO THE WINDOW MOTOR 
    • Ignition OFF.
    • Disconnect: LH Rear Power Window Motor C703.
    • Ignition ON.
      • NOTE: During the following step, the voltage being measured changes polarity dependent upon which direction the window control switch is activated.
      Fig 2: Checking Voltage And Ground To Window Motor
      G06938540Courtesy of FORD MOTOR CO.
    • Measure the voltage between LH rear power window motor C703-1, circuit CPW22 (GN/VT), harness side and LH rear power window motor C703-2, circuit CPW21 (BN), harness side while operating the master window control switch in the down then up positions.
    • Is the voltage greater than 10 volts when the window control switch is operated and 0 volt in the rest position? 
  4. G4 CHECK THE LH REAR WINDOW CONTROL SWITCH 
    • Ignition OFF.
    • Disconnect: LH Rear Window Control Switch C701.
    • Carry out the window control switch component test on the LH rear window control switch.

      Refer to OEM WIRING DIAGRAMS COMPONENT TESTING for component testing.

    • Did the LH rear window control switch pass the component test? 
    • Yes  : GO to  G5.
    • No  : INSTALL a new LH rear window control switch. REFER to Window Control Switch . TEST the system for normal operation.
  5. G5 CHECK FOR AN OPEN CIRCUIT BETWEEN THE REAR WINDOW CONTROL SWITCH AND THE WINDOW MOTOR 
    • Measure the resistance between LH rear window control switch C701, harness side and LH rear power window motor C703, harness side, using the following chart:
      LH Rear Window Control Switch Circuit LH Rear Power Window Motor
      C701-1 CPW22 (GN/VT) C703-1
      C701-7 CPW21 (BN) C703-2
      Fig 3: Measuring Resistance Between LH Rear Window Control Switch C701 And LH Rear Power Window Motor C703, Harness Side
      G06938541Courtesy of FORD MOTOR CO.
    • Are the resistances less than 5 ohms? 
    • Yes  : GO to  G6.
    • No  : REPAIR the circuit(s). TEST the system for normal operation.
  6. G6 CHECK FOR AN OPEN CIRCUIT BETWEEN THE LH REAR WINDOW CONTROL SWITCH AND THE MASTER WINDOW CONTROL SWITCH 
    • Disconnect: Master Window Control Switch C504C.
    • Measure the resistance between master window control switch C504C, harness side and LH rear window control switch C701, harness side using the following chart:
      Master Window Control Switch Circuit LH Rear Window Control Switch
      C504C-8 CPW15 (YE) C701-3
      C504C-7 CPW16 (BU/OG) C701-6
      Fig 4: Measuring Resistance Between Master Window Control Switch C504C And LH Rear Window Control Switch C701, Harness Side
      G06938542Courtesy 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). CARRY OUT the window motor initialization procedure. REFER to Window Motor Initialization . TEST the system for normal operation.
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