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 No. DTC Detection Condition Trouble Area
B2790 ID code box detects internal malfunction.

  • ID code box

  • Certification ECU

INSPECTION PROCEDURE

Note

If the ID code box is replaced, register the ECU code and ECU communication ID.

PROCEDURE


  1. REPLACE ID CODE BOX


    1. Replace the ID code box.


    NEXT

  2. ECU CODE REGISTRATION


    1. Register the ECU code.


    NEXT

  3. ECU COMMUNICATION ID REGISTRATION


    1. Register the ECU communication ID.


    NEXT

  4. CHECK DTC OUTPUT


    1. Clear the DTCs Click here.

    2. Recheck for DTCs Click here.

      OK
      B2790 output does not recur.

    NG

    REPLACE CERTIFICATION ECU

    OK

    END (ID CODE BOX IS DEFECTIVE)