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MAIN BODY ECU INSTALLATION

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CAUTION / NOTICE / HINT

Note:

  • Before replacing the main body ECU (multiplex network body ECU), refer to Service Bulletin.

  • When installing the main body ECU (multiplex network body ECU), always replace it with a new one.

Tip:

  • Use the same procedure for RHD and LHD vehicles.

  • The procedure listed below is for LHD vehicles.

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PROCEDURE


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    INSTALL MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)


    1. B004Y8T

      Hold the main body ECU (multiplex network body ECU) with your dominant hand.

      B004VVWC01
      *a Connector
      Note:

      • Do not touch the connector.

      • Make sure foreign matter does not enter the terminals.

    2. B004V1AC01
      *a Fitting Surface

      Hold the instrument panel junction block assembly with your other hand.

      Note:

      Make sure there is no foreign matter in the fitting surface.

    3. B004XBKC01
      *a 20° or more
      B004RMI Install in this Direction
      B004VGX Housing Sidewall

      Set the guide of the main body ECU (multiplex network body ECU) against the housing sidewall.

      Tip:

      Make sure the angle between the instrument panel junction block assembly and the main body ECU (multiplex network body ECU) is 20° or more.

    4. B004UKAC01
      B004RMI Install in this Direction
      B004VGX Housing Sidewall

      Slide the guide of the main body ECU (multiplex network body ECU) along the housing sidewall in the direction indicated by the arrow.

    5. B004SRCC01
      B004RMI Install in this Direction
      B004VGX Side A

      Slide it until it contacts side A.

    6. B004T0DC01
      B004RMI Install in this Direction

      Contact side A.

      Note:

      Do not contact side A with the main body ECU (multiplex network body ECU) too hard.

    7. B004V57C01
      *a Center of Rotation(Contacts Surface A)
      B004RMI Rotate in this Direction
      B004YRXC01
      *a Center of Rotation(Contacts Surface A)
      B004RMI Rotate in this Direction

      While pressing the main body ECU (multiplex network body ECU) against side A (center of rotation) of the instrument panel junction block assembly, rotate it until it enters the lock of the instrument panel junction block assembly.

      Tip:

      The center of rotation is the one that contacts surface A.

    8. B004XQ7C01
      *a Before Locking *b Main Body ECU (Multiplex Network Body ECU) Lock
      *c Instrument Panel Junction Block Assembly Lock - -

      Rotate it until it enters the lock of the instrument panel junction block assembly.

    9. B004WYRC01
      B004RMI Install in this Direction
      B004VGX Pressing Area

      Press the pressing area of the main body ECU (multiplex network body ECU).

      Note:
      • B004XAQC01
        *a Press the 2 sides of the main body ECU (multiplex network body ECU) with both hands. *b Press the center of the main body ECU (multiplex network body ECU) with one hand.
        B004V32 Place fingers or the palm of your hand here - -

        Press it in one of the following ways.

      • Check the engagement of the main body ECU (multiplex network body ECU) and the instrument panel junction block assembly by the locking sound.

      • Do not hit on or put your weight on the main body ECU (multiplex network body ECU) when engaging the main body ECU (multiplex network body ECU).

    10. B004X6OC01
      *a After Locking (Height Matches) *b Back Side of Main Body ECU (Multiplex Network Body ECU)
      *c Rib Surrounding Instrument Panel Junction Block Assembly - -
      B004RMI Confirm Visually - -
      B004TYHC01
      *a Back Side of Main Body ECU (Multiplex Network Body ECU)
      *b Rib Surrounding Instrument Panel Junction Block Assembly

      Check that the back side of the main body ECU (multiplex network body ECU) and the rib surrounding the instrument panel junction block assembly are the same height.

    11. B004V9G

      Attach the claw.

    12. Install the wiring harness clamp bracket with the nut.

      8.0 N*m 82 kgf*cm 71 in.*lbf
      B004VS8
      Note:

      If the removed nut is the same shape as that shown in the illustration, replace it the supplied replacement part.

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    INSTALL INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY WITH MAIN BODY ECU


    1. B004VV8C01
      *a Lever Connector - -
      B004RMI Rotate in this Direction - -

      Attach the claw to connect the 2 lever connectors.

      Note:

      Be sure to connect the lever connector securely.

    2. Attach the clamp.

    3. B004RC5C01
      *a Lever Connector - -
      B004RMI Rotate in this Direction - -

      Connect the 5 connectors.

    4. Attach the claw to connect the 2 lever connectors.

      Note:

      Be sure to connect the lever connector securely.

    5. B004WAX

      Install the instrument panel junction block assembly with main body ECU with the 2 nuts.

      B004VS8
      Note:

      If the removed nut is the same shape as that shown in the illustration, replace it the supplied replacement part.

      8.0 N*m 82 kgf*cm 71 in.*lbf
    6. B004U55

      Connect the ECU with the 2 nuts.

      B004VS8
      Note:

      If the removed nut is the same shape as that shown in the illustration, replace it the supplied replacement part.

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    INSTALL NO. 3 INSTRUMENT PANEL TO COWL BRACE SUB-ASSEMBLY

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    INSTALL NO. 1 HEATER TO REGISTER DUCT

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    INSTALL NO. 1 AIR DUCT SUB-ASSEMBLY

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    INSTALL LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY

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