ENGINE IMMOBILISER SYSTEM(w/o Entry and Start System), Diagnostic DTC:B1406

DTC Code DTC Name
B1406 SCU EEPROM NG

DESCRIPTION

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

DTC Code DTC Detection Condition Trouble Area
B1406 Internal malfunction in the transponder key ECU assembly when the ROM in the transponder key ECU assembly cannot be accessed. Transponder key ECU assembly

CAUTION / NOTICE / HINT

Note

If the transponder key ECU assembly is replaced, refer to Service Bulletin.

PROCEDURE


  1. REGISTER RECOGNITION CODES


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


    NEXT

  2. CHECK FOR DTC


    1. Check for DTCs Click here.

      OK
      DTC B1406 is not output.

    OK

    END

    NG

    REPLACE TRANSPONDER KEY ECU ASSEMBLY