AHS ECU REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization or registration) that must be performed after parts are removed and installed, or replaced during AHS ECU removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
Front bumper assembly Front television camera view adjustment Panoramic view monitor system

Click here for Initialization

Click here for Calibration
Front bumper assembly (w/ Intelligent clearance sonar system)

  • Ultrasonic sensor detection angle

  • Ultrasonic sensor detection angle registration

  • Intelligent clearance sonar system

  • LEXUS parking assist-sensor system

Click here

Tech Tips


  • Use the same procedure for the RH side and LH side.

  • The following procedure is for the LH side.

PROCEDURE


  1. REMOVE HEADLIGHT ASSEMBLY

    Click here

  2. REMOVE HEADLIGHT LIGHT CONTROL ECU SUB-ASSEMBLY

    Note

    Make sure to replace the headlight gasket with a new one. Failure to do so may cause water ingress.


    1. B005P8O

      Remove the 3 screws.

    2. B005N8F

      Remove the connector cover.

    3. B005MRY

      Disconnect the 2 connectors to remove the headlight light control ECU sub-assembly.

      Note

      If the headlight light control ECU sub-assembly has been struck or dropped, replace it with a new one.

  3. REMOVE HEADLIGHT GASKET

    Note

    Make sure to replace the headlight gasket with a new one. Failure to do so may cause water ingress.


    1. B005P03

      Remove the headlight gasket.