ENGINE IMMOBILISER SYSTEM(w/o Entry and Start System), Diagnostic DTC:B1577

DTC Code DTC Name
B1577 Immobiliser System EEPROM Malfunction

DESCRIPTION

The ECM stores this code when an internal malfunction is detected in the main body ECU (network gateway ECU) or when the ROM in the main body ECU (network gateway ECU) cannot be accessed.

DTC Code DTC Detection Condition Trouble Area
B1577

  • Internal malfunction in the main body ECU (network gateway ECU).

  • When the ROM in the main body ECU (network gateway ECU) cannot be accessed.

 Main body ECU (network gateway ECU)

CAUTION / NOTICE / HINT

Note

If the main body ECU (network gateway ECU) is replaced, refer to Service Bulletin.

PROCEDURE


  1. REGISTER ECU COMMUNICATION ID


    1. Register the ECU communication ID (Refer to Service Bulletin).

      OK
      The ECU communication ID can be registered

    OK

    END

    NG

  2. REGISTER ECU COMMUNICATION ID


    1. Register the ECU communication ID (Refer to Service Bulletin).

      OK
      The ECU communication ID can be registered

    OK

    END

    NG

  3. REGISTER ECU COMMUNICATION ID


    1. Register the ECU communication ID (Refer to Service Bulletin).

      OK
      The ECU communication ID can be registered

    OK

    END

    NG

    REPLACE MAIN BODY ECU (NETWORK GATEWAY ECU) Click here