HEADLIGHT ECU INSTALLATION

CAUTION / NOTICE / HINT

PROCEDURE

1. INSTALL HEADLIGHT GASKET

   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 ECU sub-assembly LH connector with bare hands.

   • Do not reuse the headlight gasket.

   SST

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

   
   

   1. 

      Install a new headlight gasket.

2. INSTALL HEADLIGHT ECU SUB-ASSEMBLY LH

   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).

   • If the headlight ECU sub-assembly LH has been dropped, replace it with a new one.

   • If the headlight ECU sub-assembly LH has been removed, replace the headlight gasket with a new one.

   • Perform work using clean rubber gloves.

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

   SST

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

   
   

   1. Connect the connector.

      Note

      Do not drop the connector in the headlight assembly LH.

      

      *A

      for ALPHARD

      *B

      for VELLFIRE

   2. Install the headlight ECU sub-assembly LH with the 3 screws.

      

      *A

      for ALPHARD

      *B

      for VELLFIRE

   3. Connect the connector and lock the connector lock lever.

      

      *A	for ALPHARD	*B	for VELLFIRE
      *a	Connector Lock Lever	-	-

3. INSTALL WASHER INLET (for RH Side)

   
   

   1. 

      Install the washer inlet with the clip.

4. PERFORM INITIALIZATION

   Note

   
   

   • If any of the work in the table below has been performed, vehicle information registration and initialization of the headlight ECU sub-assembly LH is necessary.

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     Performed Work or System Condition	Necessary Procedures
     Replacement of the headlight ECU sub-assembly LH	Vehicle information registration for the headlight ECU sub-assembly LH Initialization of the headlight ECU sub-assembly LH

   • A new headlight ECU sub-assembly LH cannot operate until the vehicle information is registered.

   • After replacing the headlight ECU sub-assembly LH, it is necessary to register the vehicle information and then perform initialization.

   • Even if the headlight ECU sub-assembly RH is replaced with a new one, vehicle information registration and initialization are not necessary.

   • Vehicle information registration must be performed with the main body ECU (multiplex network body ECU) connected via CAN communication.