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Home >> Lexus >> 2009 >> LS 460 AWD >> Repair and Diagnosis >> Body & Frame >> Windows >> Windshield/WINDOWGLASS >> Power Window Control System >> Front Passenger Side Power Window does not Operate with Front Passenger Side Power Window Switch >> Inspection Procedure
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Inspection Procedure

  1. CHECK LIN COMMUNICATION SYSTEM 
    1. Check for LIN communication system DTCs related to the power window control system.

      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 

  2. CHECK FOR DTC (B2312) 
    1. Check if DTC B2312 is output.

      OK: 

      DTC B2312 is not output. 

      NG:  GO TO DTC B2312 

      OK: Go to Next Step 

  3. READ VALUE USING TECHSTREAM (FRONT POWER WINDOW REGULATOR MOTOR RH) 
    1. Use the Data List to check if the power window regulator motor is functioning properly.

      P-Door Motor: 

      DATA LIST REFERENCE CHART

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

      OK: 

      Techstream display changes normally when front passenger side power window switch is operated. 

      NG: Go to step 4 

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

  4. CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU RH POWER WINDOW REGULATOR SWITCH) 
    1. Disconnect the P4 ECU connector.
    2. Disconnect the N6 switch connector.
    3. Measure the resistance according to the value (s) in the table below.

      Standard resistance 

      STANDARD RESISTANCE REFERENCE CHART

      Tester Connection Condition Specified Condition
      P4-27 (SGND) - N6-5 (GND) Always Below 1 Ω
      P4-27 (SGND) or N6-5 (GND) - Body ground Always 10 kΩ or higher
      Fig 1: Identifying P4 ECU Connector And N6 Switch Connector Terminals
      G05853279Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      OK: Go to Next Step 

  5. CHECK HARNESS AND CONNECTOR (FRONT MULTIPLEX NETWORK DOOR ECU RH FRONT POWER WINDOW REGULATOR MOTOR RH) 
    1. Disconnect the N1 ECU connector.
    2. Disconnect the N3 motor connector.
    3. Measure the resistance according to the value (s) in the table below.

      Standard resistance 

      STANDARD RESISTANCE REFERENCE CHART

      Tester Connection Condition Specified Condition
      N1-5 (BDRJ) - N3-2 (B) Always Below 1 Ω
      N1-2 (PWE) - N3-1 (E) Always Below 1 Ω
      N1-5 (BDRJ) or N3-2 (B) - Body ground Always 10 kΩ or higher
      N1-2 (PWE) or N3-1 (E) - Body ground Always 10 kΩ or higher
      Fig 2: Identifying N1 ECU Connector And N3 Motor Connector Terminals
      G05853280Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      OK: Go to Next Step 

  6. CHECK HARNESS AND CONNECTOR (POWER WINDOW REGULATOR SWITCH - FRONT POWER WINDOW REGULATOR MOTOR RH) 
    1. Disconnect the N6 switch connector.
    2. Disconnect the N3 motor connector.
    3. Measure the resistance according to the value (s) in the table below.

      Standard resistance 

      STANDARD RESISTANCE REFERENCE CHART

      Tester Connection Condition Specified Condition
      N6-2 (UP) - N3-10 (UP1) Always Below 1 Ω
      N6-10 (DOWN) - N3-7 (DWN1) Always Below 1 Ω
      N6-2 (UP) or N3-10 (UP1) - Body ground Always 10 kΩ or higher
      N6-10 (DOWN) or N3-7 (DWN1) - Body ground Always 10 kΩ or higher
      Fig 3: Identifying N6 Switch Connector And N3 Motor Connector Terminals
      G05853300Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

      OK: Go to Next Step 

  7. INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY 
    1. Remove the switch.
    2. Measure the resistance according to the value (s) in the table below.

      Standard resistance 

      STANDARD RESISTANCE REFERENCE CHART

      Tester Connection Switch Condition Specified Condition
      N6-2 (UP) - N6-5 (GND) Manual UP operation Below 1 Ω
      N6-10 (DOWN) - N6-5 (GND) Manual DOWN operation Below 1 Ω
      Fig 4: Identifying Power Window Regulator Switch Assembly And Connector Terminals
      G04952116Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

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

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