LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2009 >> LS 460L RWD >> Repair and Diagnosis >> Body & Frame >> Windows >> Windshield/WINDOWGLASS >> Power Window Control System >> Rear Power Window LH Auto Up/Down Function does not Operate with Rear Power Window Switch LH >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

  1. CHECK FOR DTC 
    1. Check for DTCs.

      Result: 

      RESULT REFERENCE CHART

      Result Proceed to
      DTC is not output A
      B2311 is output B
      B2312 is output C
      B2313 is output D
      LIN communication system DTC output reoccur E

      B:  GO TO DTC B2311 

      C:  GO TO DTC B2312 

      D:  GO TO DTC B2313 

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

      A: Go to Next Step 

  2. CHECK MANUAL UP/DOWN FUNCTION 
    1. Check that the manual UP/DOWN function using the rear power window regulator switch LH can operate the driver door power window.

      OK: 

      Manual UP/DOWN function operates normally. 

      NG: OTHER PROBLEM (See  REAR POWER WINDOW LH DOES NOT OPERATE WITH REAR POWER WINDOW SWITCH LH   ) 

      OK: Go to Next Step 

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

      RL-Door Motor: 

      DATA LIST REFERENCE CHART

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      RL Door P/W Auto SW Rear power window LH auto UP/DOWN switch signal/ON or OFF ON: Rear power window LH auto UP/DOWN switch operated
      OFF: Rear power window switch LH not operated      		 -

      OK: 

      Techstream display changes normally when rear power window switch LH is operated. 

      NG: Go to step 4 

      OK: REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (See  REMOVAL   ) 

  4. CHECK HARNESS AND CONNECTOR (REAR POWER WINDOW REGULATOR SWITCH LH - POWER WINDOW REGULATOR MOTOR LH) 
    1. Disconnect the O18 switch connector.
    2. Disconnect the O19 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
      O18-4 (AUTO) - O19-4 (AUTO) Always Below 1 Ω
      O18-4 (AUTO) or O19-4 (AUTO) - Body ground Always 10 kΩ or higher
      Fig 1: Identifying O18 Switch Connector And O19 Motor Connector Terminals
      G05853317Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 

      OK: Go to Next Step 

  5. INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH 
    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
      O18-4 (AUTO) - O18-5 (GND) AUTO UP/DOWN operation Below 1 Ω
      Fig 2: Identifying Rear Power Window Regulator Switch Assembly LH And Connector Terminals
      G06197122Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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

      OK: REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (See  REMOVAL   ) 

scientia non olet · About LEMON Manuals