MAIN BODY ECU(for LHD) 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 main body ECU (instrument panel junction block assembly) removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced
Replacement Part or Procedure Necessary Procedure Effects/Inoperative when not Performed Link
Replacement of main body ECU (multiplex network body ECU) Code registration (Immobiliser system)

  • Wireless function

  • Smart function

  • Does not change to on (READY)

 See Service Bulletin for the registration method.

PROCEDURE


  1. PRECAUTION

    Note

    After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

    Click here

  2. REMOVE LUGGAGE TRIM SERVICE HOLE COVER

    Click here

  3. DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL

    Click here

  4. REMOVE LOWER INSTRUMENT PANEL FINISH PANEL

    Click here

  5. REMOVE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY WITH MAIN BODY ECU


    1. B000ZRM

      Disconnect the 5 connectors.

    2. B000ZV3C01
      B006JFV Remove in this Direction (1)
      B006JHL Remove in this Direction (2)

      Disengage the claws and pull down the lock lever to disconnect the 2 connectors as shown in the illustration.

    3. B000ZMB

      Remove the nut and bolt.

    4. Pull out the instrument panel junction block assembly with main body ECU.

    5. B000ZJWC01
      *a Protective Tape

      Using a screwdriver with its tip wrapped with protective tape, disengage the claws to separate instrument wire harness.

    6. B000ZFXC01
      B006JFV Remove in this Direction

      Disengage the claw and raise the lock lever to disconnect the connector as shown in the illustration.

    7. B000ZJ9C01
      B006JFV Remove in this Direction

      Disengage the claw and raise the lock lever to disconnect the connector as shown in the illustration and remove the instrument panel junction block assembly with main body ECU.

  6. REMOVE JUNCTION BLOCK BRACKET (for Upper Side)


    1. B000ZVEC01
      *a Protective Tape
      B006JFV Remove in this Direction

      Using a screwdriver with its tip wrapped with protective tape, disengage the claws to separate instrument wire harness.

    2. Remove the junction block bracket as shown in the illustration.

  7. REMOVE JUNCTION BLOCK BRACKET (for Lower Side)


    1. B000ZI5C01
      *a Protective Tape
      B006JFV Remove in this Direction

      Using a screwdriver with its tip wrapped with protective tape, disengage the claw.

    2. Remove the junction block bracket as shown in the illustration.

  8. REMOVE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)


    1. B000ZITC02
      *1 Instrument Panel Junction Block Assembly
      *2 Main Body ECU (Multiplex Network Body ECU)
      *a Protective Tape
      B006JEG Disengage in this Direction
      B006JKV Insert in this Direction

      Press the claw of the instrument panel junction block assembly as shown in the illustration to release the lock.

    2. With the instrument panel junction block assembly lock released, insert a screwdriver with its tip wrapped with protective tape horizontally between the main body ECU (multiplex network body ECU) and instrument panel junction block assembly.

      Note

      Use a screwdriver with a diameter between 5.0 mm (0.197 in.) and 6.3 mm (0.248 in.) and a length of approximately 90 mm (3.54 in.).

    3. B000ZPPC02
      *a Protective Tape
      B000ZUW Connector
      B006JFV Remove in this Direction

      Using a screwdriver with its tip wrapped with protective tape, carefully raise the main body ECU(multiplex network body ECU) to the position where the connector becomes disconnected.

      Note


      • Do not twist the screwdriver to raise the main body ECU (multiplex network body ECU).

      • Do not damage the connector

    4. B000ZH5C02
      B006JFV Remove in this Direction (1)
      B006JHL Remove in this Direction (2)

      Raise the main body ECU (multiplex network body ECU) as shown by the arrow (1), and then pull it out as shown by the arrow (2) in the illustration.

      Note

      Do not touch the main body ECU (multiplex network body ECU) connector.