2007 Lexus LS 460LFACTORY OEM SERVICE PROCEDURE

Power Window Control System: Precaution

  1. NOTICE FOR INITIALIZATION 

    When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cable is reconnected.

    SYSTEM NAME CHART

    System Name See
    Navigation System (for DVD) INITIALIZATION
    Advanced Parking Guidance System
    Power Trunk Lid System
    Rear Door Sunshade System
  2. PRECAUTIONS WHEN USING INTELLIGENT TESTER OR TECHSTREAM 
    1. When using the intelligent tester or Techstream with the engine switch off to troubleshoot: Connect the intelligent tester (with CAN VIM) or Techstream to the vehicle, and turn a courtesy light switch on and off at 1.5 second intervals until communication between the tester and vehicle begins.
    2. After all DTCs are cleared, check if the trouble occurs again 6 seconds after the engine switch on (IG).
  3. POWER WINDOW CONTROL SYSTEM PRECAUTIONS 
    CAUTION:
    • The power window control system prohibits the AUTO UP/DOWN function when the jam protection function malfunctions. Therefore, troubleshoot the power window control system after confirming that no diagnostic codes are displayed.
    • When the power window regulator or the power window regulator motor assembly is replaced, the power window control system must be initialized.
    • After a door glass or a door glass run has been replaced, the jam protection function may operate unexpectedly when the AUTO UP function is used. In such cases, the AUTO UP function can be resumed by repeating the following operation at least 5 times:
      1. Close the power window by fully pulling up the power window switch and holding it at the AUTO UP position.
      2. Open the power window by fully pushing down the power window switch.
    • The jam protection function may operate unexpectedly even when the power window control system is normal, due to detection of a different operation learned value when the door glass moving speed changes sharply under any of the following conditions:
      1. A power window being opened or closed while the vehicle is driving on a rough road.
      2. A power window being opened or closed while the door is being opened or closed.
      3. A sharp voltage change.
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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