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Home >> Lexus >> 2008 >> IS F >> Repair and Diagnosis >> Body & Frame >> Windows >> Windshield/WINDOWGLASS >> Power Window Control System >> Rear Power Window RH does not Operate with Rear Power Window Switch RH >> Inspection Procedure
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Inspection Procedure

NOTE:
  • When the rear power window regulator motor assembly (for rear RH side) connector, the multiplex network master switch assembly connector or the multiplex network switch assembly (for rear RH side) is disconnected, the power window control system must be initialized (See CUSTOMIZE PARAMETERS  ).
  • Since the power window control system has functions that use multiplex communication (BEAN), first confirm that there is no malfunction in the multiplex communication system by inspecting the multiplex communication functions in accordance with the How to Proceed with Troubleshooting procedure (See HOW TO PROCEED WITH TROUBLESHOOTING  ). Then, conduct the following inspection procedure.
  1. CHECK FUSE (RR DOOR RH) 
    1. Remove the RR DOOR RH fuse from the main body ECU RH (cowl side junction block RH)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      RR DOOR RH fuse Always Below 1 Ω

    NG: REPLACE FUSE 

    OK: Go to next step 

  2. CHECK POWER WINDOW CONTROL SYSTEM (REAR RH SIDE REMOTE UP/DOWN FUNCTION) 
    1. Check that the rear RH side remote UP/DOWN function operates normally (See OPERATION CHECK  )

      OK: Rear RH side remote UP/DOWN function operates normally. 

    NG: Go to step 3 

    OK: REPLACE MULTIPLEX NETWORK SWITCH ASSEMBLY (for Rear RH side)  (See REMOVAL  )

  3. CHECK HARNESS AND CONNECTOR (SWITCH (for Rear RH Side) - BODY GROUND AND BATTERY) 
    1. Disconnect the multiplex network switch assembly (for rear RH side) connector.
    2. Measure the resistance according to the value(s) in the table below

      Standard Resistance 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      N1-7 (GND) - Body ground Always Below 1 Ω
    3. Measure the voltage according to the value(s) in the table below

      Standard Voltage 

      STANDARD VOLTAGE

      Tester Connection Condition Specified Condition
      N1-12 (BDR) - N1-7 (GND) Always 11 to 14 V
      Fig 1: Identifying Multiplex Network Switch Assembly (For Rear RH Side) Connector
      G05755751Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  4. INSPECT MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY (WINDOW LOCK SWITCH OPERATION SIGNAL) 
    1. Turn the engine switch on (IG)
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage 

      STANDARD VOLTAGE

      Tester Connection Switch Condition Specified Condition
      M7-6 (PWS) - Body ground Power window lock switch UNLOCK 11 to 14 V
      M7-6 (PWS) - Body ground Power window lock switch LOCK Below 1 V
    3. Fig 2: Identifying Multiplex Network Master Switch Assembly Connector
      G05755738Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY 

    OK: Go to next step 

  5. CHECK HARNESS AND CONNECTOR (MASTER SWITCH - SWITCH (for Rear RH Side)) 
    1. Disconnect the multiplex network master switch assembly connector
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      M7-6 (PWS) - N1-11 (PCT1) Always Below 1 Ω
      M7-6 (PWS) - Body ground Always 10 kΩ or higher
    3. Fig 3: Identifying Multiplex Network Switch Assembly (For Rear RH Side) Connector And Multiplex Network Master Switch Assembly Connector
      G05755753Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to next step 

  6. INSPECT REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear RH side) 
    1. Remove the rear power window regulator motor assembly (for rear RH side) (See REMOVAL  ).
    2. Check power window regulator motor operation.
      1. Apply battery voltage to connector terminals 1 and 2
        NOTE: Do not apply battery voltage to any terminals except terminals 1 and 2.
      2. Check that the motor gear rotates smoothly as follows

        OK 

        MEASUREMENT CONDITION AND SPECIFIED CONDITION

        Measurement Condition Specified Condition
        Battery positive (+) → 1
        Battery negative (-) → 2
        Motor gear rotates counterclockwise
        Battery positive (+) → 2
        Battery negative (-) → 1
        Motor gear rotates clockwise
    3. Check PTC operation
      NOTE: This check must be performed with the power window regulator and door glass installed on the vehicle.
      Fig 4: Identifying Power Window Regulator Motor Operation
      G05755754Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Install the rear power window regulator motor assembly (for rear RH side) (See INSTALLATION  )
      2. Connect an electrical tester DC 400 A probe to the wire harness of terminal 1
        NOTE: Match the arrow mark of the probe with the direction of the current flow.
      3. Fully close the door glass by pulling up the multiplex network switch assembly (for rear RH side) Wait for approximately 60 seconds
      4. Continue to pull up the multiplex network switch assembly (for rear RH side) and measure how long it takes for the electrical current to change from a range of 16 to 28 A to approximately 1 A (current shut-off inspection)

        Standard: 4 to 90 seconds 

      5. Wait for 60 seconds after the previous step, and then push down the multiplex network switch assembly (for rear RH side).
        Fig 5: Identifying Rear Power Window Regulator Motor Assembly (For Rear RH Side) Connector
        G05755755Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

        OK: The rear RH side window goes down. 

    NG: REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Rear RH Side)  (See REMOVAL  )

    OK: Go to next step 

  7. CHECK HARNESS AND CONNECTOR (SWITCH (for Rear RH Side) - REGULATOR MOTOR) 
    1. Disconnect the front power window regulator motor assembly (for rear RH side) connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance 

      STANDARD RESISTANCE

      Tester Connection Condition Specified Condition
      N1-6 (UP) - N7-1 (U) Always Below 1 Ω
      N1-1 (DN) - N7-2 (D) Always Below 1 Ω
      N1-6 (UP) - Body ground Always 10 kΩ or higher
      N1-1 (DN) - Body ground Always 10 kΩ or higher
    3. Fig 6: Identifying Front Power Window Regulator Motor Assembly (For Rear RH Side) Connector
      G05755756Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE MULTIPLEX NETWORK SWITCH ASSEMBLY (for Rear RH side)  (See REMOVAL  )