LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2021 >> LS 500 Base, AWD >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System - Diagnostic Codes & Symptom Tests >> Power Window Control System >> Remote Up / Down Function does not Operate [10/2023 - ] >> Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Remote Up / Down Function does not Operate [10/2023 - ]: Procedure

  1. PERFORM INITIALIZATION (APPLICABLE LOCATION) 
    1. Initialize the power window regulator motor assembly (applicable location).

      Refer to REGISTRATION [10/2023 - ]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  2

  2. CHECK POWER WINDOW CONTROL SYSTEM (APPLICABLE LOCATION) 
    1. Check that the power window operates normally by opening and closing it (applicable location).

      Refer to OPERATION CHECK [10/2023 - ]

      OK

      Power window operates normally (applicable location).

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (PROBLEM DUE TO INITIALIZATION FAILURE) 

    Result: 

    NG 

    See step  3

  3. READ VALUE USING GTS (MASTER SWITCH) 
    1. Read the Data List according to the display on the GTS.

      Body Electrical > Main Body > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      P Door P/W AUTO Switch Front passenger door power window auto switch signal OFF or ON OFF: Front passenger door power window auto up or auto down switch not being operated
      ON: Front passenger door power window auto up or auto down switch being operated
      -
      RR Door P/W AUTO Switch Rear RH door power window auto switch signal OFF or ON OFF: Rear RH door power window auto up or auto down switch not being operated
      ON: Rear RH door power window auto up or auto down switch being operated
      -
      RL Door P/W AUTO Switch Rear LH door power window auto switch signal OFF or ON OFF: Rear LH door power window auto up or auto down switch not being operated
      ON: Rear LH door power window auto up or auto down switch being operated
      -
      P Door P/W UP Switch Front passenger door power window manual up switch signal OFF or ON OFF: Front passenger door power window manual up switch not being operated
      ON: Front passenger door power window manual up switch being operated
      -
      RR Door P/W UP Switch Rear RH door power window manual up switch signal OFF or ON OFF: Rear RH door power window manual up switch not being operated
      ON: Rear RH door power window manual up switch being operated
      -
      RL Door P/W UP Switch Rear LH door power window manual up switch signal OFF or ON OFF: Rear LH door power window manual up switch not being operated
      ON: Rear LH door power window manual up switch being operated
      -
      P Door P/W DOWN Switch Front passenger door power window manual down switch signal OFF or ON OFF: Front passenger door power window manual down switch not being operated
      ON: Front passenger door power window manual down switch being operated
      -
      RR Door P/W DOWN Switch Rear RH door power window manual down switch signal OFF or ON OFF: Rear RH door power window manual down switch not being operated
      ON: Rear RH door power window manual down switch being operated
      -
      RL Door P/W DOWN Switch Rear LH door power window manual down switch signal OFF or ON OFF: Rear LH door power window manual down switch not being operated
      ON: Rear LH door power window manual down switch being operated
      -
      Window Lock Switch Window lock switch signal OFF or ON OFF: Window lock switch off (not pushed in)
      ON: Window lock switch on (pushed in)
      -

      Body Electrical > Main Body > Data List 

      Tester Display
      P Door P/W AUTO Switch
      RR Door P/W AUTO Switch
      RL Door P/W AUTO Switch
      P Door P/W UP Switch
      RR Door P/W UP Switch
      RL Door P/W UP Switch
      P Door P/W DOWN Switch
      RR Door P/W DOWN Switch
      RL Door P/W DOWN Switch
      Window Lock Switch

      OK

      On the GTS screen, ON or OFF is displayed accordingly.

      Result

      Result Proceed to
      NG A
      OK (when the window for which remote operation is impossible is the passenger side window) (for LHD) B
      OK (when the window for which remote operation is impossible is the passenger side window) (for RHD) C
      OK (when the window for which remote operation is impossible is the rear left side window) D
      OK (when the window for which remote operation is impossible is the rear right side window) E

    Result: 

    REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY. Refer to  REMOVAL [12/2017 - ] 

    Result: 

    REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH. Refer to  REMOVAL [10/2023 - ] 

    Result: 

    REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH. Refer to  REMOVAL [10/2023 - ] 

    Result: 

    REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH. Refer to  REMOVAL [10/2023 - ] 

    Result: 

    REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH. Refer to  REMOVAL [10/2023 - ]