2008 Lexus LS 600hLFACTORY OEM SERVICE PROCEDURE

Inspection Procedure

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

    Result: 

    RESULT REFERENCE

    Result Proceed to
    DTC is not output A
    DTC is output B

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

    A: Go to Next Step 

  2. CHECK MASTER SWITCH ASSEMBLY (WINDOW LOCK SWITCH) 
    1. Turn the window lock switch OFF and operate the switches on the master switch Check that the remote UP/DOWN function operates normally

    OK: Remote UP/DOWN function operates normally. 

    NG: REPLACE MASTER SWITCH ASSEMBLY (Seepage WS-123) 

    Fig 1: Identifying Window Lock Switch
    G05776642Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: END 

Factory Service Tools

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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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