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Home >> Lexus >> 2008 >> LX 570 >> Repair and Diagnosis >> Body & Frame >> Windows >> Windshield/WINDOWGLASS >> Power Window Control System >> Rear Power Window LH does not Operate with Rear Power Window Switch LH >> 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 (See DTC CHECK / CLEAR ).

      OK: LIN communication system DTCs are not output. 

    NG: GO TO LIN COMMUNICATION SYSTEM  (See DIAGNOSTIC TROUBLE CODE CHART )

    OK: Go to next step 

  2. CHECK FOR DTC (B2312) 
    1. Check if DTC B2312 is output (See DTC B2312 POWER WINDOW SWITCH MALFUNCTION  ).

      OK: DTC B2312 is not output. 

    NG: GO TO DTC B2312  (See DTC B2312 POWER WINDOW SWITCH MALFUNCTION  )

    OK: Go to next step 

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

      RL-Door Motor 

      ITEM RANGE REFERENCE

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      RL Door P/W Up SW Rear power window LH manual up signal / ON or OFF ON: Rear power window LH manual up switch operated
      OFF: Rear power window LH switch not operated
      -
      RL Door P/W Down SW Rear power window LH manual down signal / ON or OFF ON: Rear power window LH manual down switch operated
      OFF: Rear power window LH switch not operated
      -

      OK: Techstream display changes according to operation of rear power window switch LH. 

    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 - BODY GROUND) 
    1. Disconnect the J10 switch connector.
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      RESISTANCE REFERENCE

      Tester Connection Condition Specified Condition
      J10-5 (GND) - Body ground Always Below 1 Ω

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 1: Identifying J10 Connector Terminal
    G05767440Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to next step 

  5. CHECK HARNESS AND CONNECTOR (REAR POWER WINDOW REGULATOR MOTOR LH - BATTERY AND BODY GROUND) 
    1. Disconnect the J11 motor connector.
    2. Measure the voltage and resistance according to the value (s) in the table below.

      Standard Voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Condition Specified Condition
      J11-2 (B) - Body ground Always 11 to 14 V

      Standard Resistance 

      RESISTANCE REFERENCE

      Tester Connection Condition Specified Condition
      J11-1 (GND) - Body ground Always Below 1 Ω

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 2: Identifying J11 Connector Terminal
    G05636324Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to next step 

  6. CHECK HARNESS AND CONNECTOR (REAR POWER WINDOW REGULATOR SWITCH LH - REAR POWER WINDOW REGULATOR MOTOR LH) 
    1. Disconnect the J10 switch connector.
    2. Disconnect the J11 motor connector.
    3. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      RESISTANCE REFERENCE

      Tester Connection Condition Specified Condition
      J10-2 (UP) - J11-10 (UP) Always Below 1 Ω
      J10-10 (DOWN) - J11-7 (DOWN) Always Below 1 Ω
      J10-4 (AUTO) - J11-4 (AUTO) Always Below 1 Ω
      J10-2 (UP) or J11-10 (UP) - Body ground Always 10 kΩ or higher
      J10-10 (DOWN) or J11-7 (DOWN) - Body ground Always 10 kΩ or higher
      J10-4 (AUTO) or J11-4 (AUTO) - Body ground Always 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 3: Identifying J11 And J10 Connector Terminal
    G05767424Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to next step 

  7. INSPECT REAR POWER WINDOW REGULATOR SWITCH LH 
    1. Remove the rear power window regulator switch LH (See REMOVAL  ).
    2. Measure the resistance according to the value (s) in the table below.

      Standard Resistance 

      RESISTANCE REFERENCE

      Tester Connection Switch Condition Specified Condition
      J10-2 (UP) - J10-5 (GND) Manual up operation Below 1 Ω
      J10-10 (DOWN) - J10-5 (GND) Manual down operation Below 1 Ω

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

    Fig 4: Identifying Rear Power Window Regulator Switch Connector Terminal
    G05767443Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

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