2007 Lexus LS 460FACTORY OEM SERVICE PROCEDURE

Inspection Procedure

  1. CHECK FOR DTC 
    1. Check for DTCs.

      Result: 

      FOR DTC

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

    A: GO TO  DTC B2311   

    B: GO TO  DTC B2312   

    C: GO TO  DTC B2313  

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

    E: GO TO NEXT STEP 

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

      OK: Manual UP/DOWN function operates normally. 

    NG: OTHER PROBLEM (See  DRIVER SIDE POWER WINDOW DOES NOT OPERATE WITH POWER WINDOW MASTER SWITCH   ) 

    OK: GO TO NEXT STEP 

  3. READ VALUE OF INTELLIGENT TESTER OR TECHSTREAM 
    1. Use the Data List to check if the master switch is functioning properly.
      1. Intelligent tester

        MASTER SW: 

        INTELLIGENT TESTER MASTER SW

        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        P/W AUTO SW Driver side power window auto UP/DOWN switch signal / ON or OFF ON: Driver side power window auto UP/DOWN switch on master switch operated
        OFF: Driver side power window switch on master switch not operated
        -
      2. Techstream

        Master Switch: 

        TECHSTREAM MASTER SW

        Tester Display Measurement Item/Range Normal Condition Diagnostic Note
        D Door P/W Auto SW Driver side power window auto UP/DOWN switch signal / ON or OFF ON: Driver side power window auto UP/DOWN switch on master switch operated
        OFF: Driver side power window switch on master switch not operated
        -

        OK: Tester display changes normally when master switch is operated. 

    NG: REPLACE MASTER SWITCH ASSEMBLY (See  REMOVAL   ) 

    OK: REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH (for Driver Side) (See  REMOVAL   ) 

Factory Service Tools

Use the Manual With the Right Hardware

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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