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Home >> Toyota >> 2008 >> Sequoia Platinum, 4WD >> Repair and Diagnosis >> Body & Frame >> Windows >> Window/Glass >> Power Window Control System >> Remote Up / Down Function Does Not Operate >> Inspection Procedure

Inspection Procedure

  1. CHECK POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY (WINDOW LOCK SWITCH) 
    1. Turn the window lock switch OFF and operate the switches on the power window regulator master switch. Check that the remote UP/DOWN function operates normally.

      OK: Remote UP/DOWN function operates normally. 

      Result 

      RESULT CHART

      Result Proceed to
      OK A
      NG (Front RH side) B
      NG (Rear side) C
      Fig 1: Identifying Window Lock Switch
      G05655792Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    B: Go to step 2 

    C: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY  (See REMOVAL  )

    A: END 

  2. CHECK LIN COMMUNICATION SYSTEM 
    1. Check for LIN communication system DTCs related to the power window control system (See DIAGNOSTIC TROUBLE CODE CHART ).

      OK: LIN communication system DTCs are not output. 

    NG: GO TO LIN COMMUNICATION SYSTEM  (See HOW TO PROCEED WITH TROUBLESHOOTING )

    OK: Go to next step 

  3. READ VALUE USING TECHSTREAM (POWER WINDOW MASTER SWITCH) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch to ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Master Switch / Data List /
    5. According to the display on the Techstream, read the Data List.

      Master Switch 

      MASTER SWITCH REFERENCE CHART

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      P Door P/W Auto SW Front passenger side power window remote auto UP/DOWN switch signal / ON or OFF ON: Front passenger side power window remote auto UP/DOWN switch on multiplex network master switch operated
      OFF: Front passenger side power window switch on multiplex network master switch not operated
      -
      P Door P/W Up SW Front passenger side power window remote manual UP switch signal / ON or OFF ON: Front passenger side power window remote manual UP switch on multiplex network master switch operated
      OFF: Front passenger side power window switch on multiplex network master switch not operated
      -
      P Door P/W Down SW Front passenger side power window remote manual DOWN switch signal / ON or OFF ON: Front passenger side power window remote manual DOWN switch on multiplex network master switch operated
      OFF: Front passenger side power window switch on the multiplex network master switch not operated
      -

      OK: The Techstream display changes normally when master switch is operated. 

    NG: REPLACE POWER WINDOW REGULATOR MASTER SWITCH ASSEMBLY  (See REMOVAL  )

    OK: REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH  (See REMOVAL  )