AHS ECU REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during the headlight light control ECU sub-assembly removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced
Replacement Part or Procedure Necessary Procedure Effect/Inoperative when not Performed Link
Removal/installation of headlight light control ECU sub-assembly Adjust millimeter wave radar sensor assembly

  • Dynamic radar cruise control system

  • Pre-crash safety system

  • Forward recognition camera system

  • LKA/LDA system

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Tech Tips


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

  • The following procedure listed below is for LH side.

PROCEDURE


  1. PRECAUTION

    Note


    • Be sure to read Precaution thoroughly before servicing.

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    • Handle components indoors as much as possible to prevent foreign matter from entering and adhering to headlight assembly components.

    • Do not reuse parts which have reduced fastening ability due to thread damage.

    • When installing components, make sure that the wire harness is not pinched or pulled.

    • Do not use solvent to clean components. Only clean them with a dry cloth.

  2. REMOVE HEADLIGHT ASSEMBLY

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  3. REMOVE HEADLIGHT LIGHT CONTROL ECU SUB-ASSEMBLY

    Note


    • Prevention of static electricity is required during this procedure.

    • Use static electricity countermeasures SST (desktop antistatic mat set) and observe all precautions to prevent damage to the system by electrostatic discharge (ESD).

    • Perform work using clean rubber gloves.

    • Do not touch the headlight light control ECU sub-assembly connector with bare hands.

    SST
    09890-47010   ( 09891-04010, 09891-04020, 09891-04030, 09891-04040 )

    1. B002E17

      Remove the 3 screws.

    2. B002DUV

      Remove the cover.

    3. B002DG0

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

    4. B002CHX

      Remove the headlight light control ECU sub-assembly gasket.