ENGINE IMMOBILISER SYSTEM (w/ Entry and Start System), Diagnostic DTC:B2790

DTC Code DTC Name
B2790 ID BOX EEPROM Malfunction

DESCRIPTION

This DTC is stored when the ID code box detects an internal malfunction.

DTC Code DTC Detection Condition Trouble Area
B2790 The ID code box detects an internal malfunction.

  • ID code box

  • Certification ECU

INSPECTION PROCEDURE

Note

Before replacing the certification ECU, refer to the Service Bulletin.

PROCEDURE


  1. REPLACE ID CODE BOX


    1. Replace the ID code box (Refer to the Service Bulletin).


    NEXT

  2. REGISTER RECOGNITION CODES


    1. Register the recognition codes in the ECUs (Refer to the Service Bulletin).


    NEXT

  3. REGISTER ECU COMMUNICATION ID


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


    NEXT

  4. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  5. CHECK FOR DTC


    1. Check for DTCs Click here.

      OK
      DTC B2790 is not output.

    NG

    REPLACE CERTIFICATION ECU

    OK

    END (ID CODE BOX IS DEFECTIVE)