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NETWORK GATEWAY ECU REMOVAL

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CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during central gateway ECU (network gateway ECU) removal/installation are shown below.

Table 1. Necessary Procedures After Parts Removed/Installed/Replaced
Replaced Part or Performed Procedure Necessary Procedure Effect/Inoperative Function when Necessary Procedure not Performed Link
Battery terminal is disconnected/reconnected Perform steering sensor zero point calibration Lane departure alert system (w/ Steering Control)

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Pre-collision system
Memorize steering angle neutral point Parking assist monitor system

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Replacement of clearance warning ECU assembly*1 Adjust TOYOTA parking assist-sensor system TOYOTA parking assist-sensor system

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CAUTION:
B0071NY

Some of these service operations affect the SRS airbag system. Read the precautionary notices concerning the SRS airbag system before servicing.

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PROCEDURE


  1. Click here

    PRECAUTION (for LHD)

    Note:

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

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  2. Click here

    DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL (for LHD)

    for 2AR-FE:

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    for A25A-FKS:

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    for 2GR-FKS:

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    CAUTION:
    B006XLM

    • Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

    • If an airbag deploys for any reason, it may cause a serious injury.

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    REMOVE NO. 1 METER HOOD CLUSTER (for LHD)

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  4. Click here

    REMOVE NO. 2 INSTRUMENT PANEL GARNISH SUB-ASSEMBLY (for LHD)

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  5. Click here

    REMOVE INSTRUMENT PANEL FINISH PLATE GARNISH (for LHD)

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  6. Click here

    REMOVE FRONT DOOR SCUFF PLATE RH (for LHD)

    Tip:

    Use the same procedure as for the LH side.

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  7. Click here

    REMOVE COWL SIDE TRIM SUB-ASSEMBLY RH (for LHD)

    Tip:

    Use the same procedure as for the LH side.

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  8. Click here

    DISCONNECT FRONT DOOR OPENING TRIM WEATHERSTRIP RH (for LHD)

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  9. Click here

    REMOVE INSTRUMENT SIDE PANEL RH (for LHD)

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  10. Click here

    REMOVE NO. 2 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY (for LHD)

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  11. Click here

    REMOVE LOWER NO. 2 INSTRUMENT PANEL AIRBAG ASSEMBLY (for LHD, w/ Passenger Side Knee Airbag)

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  12. Click here

    REMOVE LOWER INSTRUMENT PANEL SUB-ASSEMBLY (for LHD, w/o Passenger Side Knee Airbag)

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  13. Click here

    REMOVE LOWER INSTRUMENT PANEL SUB-ASSEMBLY (for LHD, w/ Passenger Side Knee Airbag)

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  14. Click here

    REMOVE ECU INTEGRATION BOX RH (for LHD, w/ ECU Integration Box RH)


    1. Disconnect each connector.

    2. B0070I5

      Disengage the 2 clamps.

    3. Remove the bolt, nut and ECU integration box RH.

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    REMOVE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) (for LHD, w/o ECU Integration Box RH)


    1. B006XRU

      Disconnect the central gateway ECU (network gateway ECU) connector.

    2. Disengage the clamp.

    3. B006ZHL

      Remove the nut and central gateway ECU (network gateway ECU).

  16. Click here

    REMOVE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) (for LHD, w/ ECU Integration Box RH)


    1. B0070KK

      Disengage the 2 claws and remove the central gateway ECU (network gateway ECU).

      Note:

      • If the ECU integration box is deformed or damaged, replace it.

      • Do not bend the 2 claws more than necessary.

  17. Click here

    REMOVE LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY (for RHD)

    Tip:

    Use the same procedure as for LHD.

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  18. Click here

    REMOVE NO. 3 INSTRUMENT PANEL TO COWL BRACE SUB-ASSEMBLY (for RHD)

    Tip:

    Use the same procedure as for LHD.

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  19. Click here

    REMOVE ECU INTEGRATION BOX RH (for RHD)


    1. Disconnect each connector.

    2. B007028

      Disengage the clamp.

    3. Remove the bolt, 2 nuts and ECU integration box RH.

  20. Click here

    REMOVE CENTRAL GATEWAY ECU (NETWORK GATEWAY ECU) (for RHD)


    1. B006YDW

      Disengage the 2 claws and remove the central gateway ECU (network gateway ECU).

      Note:

      • If the ECU integration box is deformed or damaged, replace it.

      • Do not bend the 2 claws more than necessary.