MAIN BODY ECU INSTALLATION

CAUTION / NOTICE / HINT

Note


  • The main body ECU (multiplex network body ECU) is not reusable.

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

Tech Tips


  • Use the same procedure for RHD and LHD vehicles.

  • The procedure listed below is for LHD vehicles.

PROCEDURE


  1. INSTALL MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

    Note


    • Make sure that the connecting surfaces are free of foreign matter.

    • Do not touch the driver side junction block assembly connector or the main body ECU (multiplex network body ECU) connector.


    1. B001G1JC12
      *a Guide Part
      *b 20° or more
      B001CE2 Housing Sidewall

      Set a new main body ECU (multiplex network body ECU) to the position where the guide part of the main body ECU (multiplex network body ECU) contacts the housing sidewall of the driver side junction block assembly as shown in the illustration.

      Tech Tips

      Make sure to keep the angle at 20° or more as shown in the illustration.

    2. B001C96C11
      *a Guide Part
      B001CE2 Housing Sidewall

      Slide the main body ECU (multiplex network body ECU) along the housing sidewall as shown in the illustration and attach the guide.

    3. B001HJ3C08
      *a Side A

      Slide the main body ECU (multiplex network body ECU) so that it contacts side A as shown in the illustration.

      Note

      Do not apply excessive force to the main body ECU (multiplex network body ECU).

    4. B001FSYC08
      *a Side A Contact Portion

      With the main body ECU (multiplex network body ECU) to side A of the driver side junction block assembly (point of rotation), rotate it downward as shown in the illustration.

      Tech Tips

      Rotate until ECU's lock engages into driver side junction block assembly's lock.

    5. B001GLHC01
      *1 Main Body ECU (Multiplex Network Body ECU)
      *2 Driver Side Junction Block Assembly
      B001CE2 ECU Push Area

      Press down on the push area until the claw attaches to install the main body ECU (multiplex network body ECU).

      Note


      • Make sure to press only the pushing area.

      • Confirm the engagement of the main body ECU (multiplex network body ECU) and driver side junction block assembly by listening for the click sound of the lock engaging.

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

      • Using thumbs of both hands placed on each side of ECU.

      Tech Tips

      If a click sound cannot be heard, visually check the engagement of the lock. The engagement can also be confirmed if the main body ECU (multiplex network body ECU) and driver side junction block assembly are flush.

    6. B001DUQC01
      *A for LHD
      *B for RHD

      Attach the guide.

    7. Install the wiring harness clamp bracket with the bolt.

      Torque:
      8.0 N*m  { 82 kgf*cm, 71 in.*lbf }

  2. INSTALL DOOR CONTROL BATTERY (w/ Door Control Battery)

    Click here

  3. INSTALL DRIVER SIDE JUNCTION BLOCK ASSEMBLY WITH MAIN BODY ECU (for LHD, except 5L-E)


    1. B001HBL

      Attach the claw to connect the lever connector.

      Note

      Be sure to connect the lever connector securely.

    2. B001HSL

      Attach the claw to connect the lever connector.

      Note

      Be sure to connect the lever connector securely.

    3. B001H4S

      Attach the clamp.

    4. B001EYP

      Attach the clamp.

    5. B001DW2

      Attach the clamp.

    6. B001EFQC01
      B001CHY Nut (A)
      B001DEF Nut (B)

      Install the 2 nuts (A).

      Torque:
      8.0 N*m  { 82 kgf*cm, 71 in.*lbf }

    7. w/ Door Control Battery:


      1. Install the 2 nuts (A) and nut (B).

        Torque:
        8.0 N*m  { 82 kgf*cm, 71 in.*lbf }
    8. B001I2TC01
      B001CHY Lever Connector
      B001DEF Connector (A)
      B001HIB Connector (B)

      Attach the claw to connect the 2 lever connectors.

      Note

      Be sure to connect the lever connector securely.

    9. Connect the 2 connectors (A).

    10. w/ Door Control Battery:


      1. Connect the connector (B).

    11. B001F60C01
      B001CHY Connector (A)
      B001DEF Connector (B)

      for Type A:


      1. Connect the 2 connectors (A) and connector (B) to install the driver side junction block assembly with main body ECU.

    12. for Type B:


      1. Connect the 2 connectors (A) to install the driver side junction block assembly with main body ECU.

  4. INSTALL DRIVER SIDE JUNCTION BLOCK ASSEMBLY WITH MAIN BODY ECU (for LHD, 5L-E)


    1. B001E7F

      Attach the claw to connect the lever connector.

      Note

      Be sure to connect the lever connector securely.

    2. B001G7E

      Attach the claw to lock the connector lock as shown in the illustration.

    3. B001II1

      Attach the claw to connect the lever connector.

      Note

      Be sure to connect the lever connector securely.

    4. B001H4S

      Attach the clamp.

    5. B001EYP

      Attach the clamp.

    6. B001DW2

      Attach the clamp.

    7. B001CY2

      Install the 2 nuts.

      Torque:
      8.0 N*m  { 82 kgf*cm, 71 in.*lbf }
    8. B001H55C01
      B001CHY Lever Connector
      B001DEF Connector

      Attach the claw to connect the 2 lever connectors.

      Note

      Be sure to connect the lever connector securely.

    9. Connect the connector.

    10. B001GRW

      Connect the 3 connectors to install the driver side junction block assembly with main body ECU.

  5. INSTALL DRIVER SIDE JUNCTION BLOCK ASSEMBLY WITH MAIN BODY ECU (for RHD, except 5L-E)


    1. B001HW7

      Attach the claw to connect the lever connector.

      Note

      Be sure to connect the lever connector securely.

    2. B001GE3

      Attach the claw to connect the lever connector.

      Note

      Be sure to connect the lever connector securely.

    3. B001FLZ

      Attach the clamp.

    4. B001F8D

      Attach the clamp.

    5. B001HIZC01
      *a Clamp (A)
      *b Clamp (B)

      Attach the 2 clamps (A).

    6. Install the 2 nuts.

      Torque:
      8.0 N*m  { 82 kgf*cm, 71 in.*lbf }

    7. w/ KDSS:


      1. Install the stabilizer control ECU.

        Click here

    8. Attach the 2 clamps (B).

    9. B001DXWC01
      B001CHY Lever Connector
      B001DEF Connector

      Attach the claw to connect the lever connector.

      Note

      Be sure to connect the lever connector securely.

    10. Connect the 2 connectors.

    11. Attach the clamp.

    12. B001IL3C01
      B001CHY Lever Connector
      B001DEF Connector

      Attach the claw to connect the 2 lever connectors.

      Note

      Be sure to connect the lever connector securely.

    13. Connect the 2 connectors.

    14. B001DSZC01
      B001CHY Connector (A)
      B001DEF Connector (B)

      for Type A:


      1. Connect the 2 connectors (A) and connector (B) to install the driver side junction block assembly with main body ECU.

    15. for Type B:


      1. Connect the 2 connectors (A) to install the driver side junction block assembly with main body ECU.

  6. INSTALL DRIVER SIDE JUNCTION BLOCK ASSEMBLY WITH MAIN BODY ECU (for RHD, 5L-E)


    1. B001II5

      Attach the claw to connect the lever connector.

      Note

      Be sure to connect the lever connector securely.

    2. B001E9S

      Attach the claw to lock the connector lock as shown in the illustration.

    3. B001CU6

      Attach the claw to connect the lever connector.

      Note

      Be sure to connect the lever connector securely.

    4. B001FLZ

      Attach the clamp.

    5. B001F8D

      Attach the clamp.

    6. B001HIZC01
      *a Clamp (A)
      *b Clamp (B)

      Attach the 2 clamps (A).

    7. Install the 2 nuts.

      Torque:
      8.0 N*m  { 82 kgf*cm, 71 in.*lbf }

    8. Attach the 2 clamps (B).

    9. B001DXWC01
      B001CHY Lever Connector
      B001DEF Connector

      Attach the claw to connect the lever connector.

      Note

      Be sure to connect the lever connector securely.

    10. Connect the 2 connectors.

    11. Attach the clamp.

    12. B001CIKC01
      B001CHY Lever Connector
      B001DEF Connector

      Attach the claw to connect the 2 lever connectors.

      Note

      Be sure to connect the lever connector securely.

    13. Connect the connector.

    14. B001HLF

      Connect the 3 connectors to install the driver side junction block assembly with main body ECU.

  7. INSTALL LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY (w/ Knee Airbag)

    Click here

  8. INSTALL LOWER INSTRUMENT PANEL FINISH PANEL SUB-ASSEMBLY

    Click here

  9. INSTALL INSTRUMENT SIDE PANEL LH

    Click here

  10. INSTALL FRONT DOOR OPENING TRIM WEATHERSTRIP LH

    Click here

  11. INSTALL NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY

    Click here

  12. INSTALL COWL SIDE TRIM BOARD LH

    Click here

  13. INSTALL DOOR SCUFF PLATE ASSEMBLY LH

    Click here

  14. INSTALL FRONT FLOOR FOOTREST (for LHD)

    Click here

  15. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

    Note

    When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

    Click here

  16. PERFORM DIAGNOSTIC SYSTEM CHECK

    Click here

  17. CHECK SRS WARNING LIGHT

    Click here