ENGINE IMMOBILISER SYSTEM(w/o Entry and Start System), Diagnostic DTC:B1402

DTC Code DTC Name
B1402 Immobiliser Key Check NG

DESCRIPTION

The main body ECU (network gateway ECU) stores this code if an improper key (a key not registered in the main body ECU (network gateway ECU)) is inserted into the ignition key cylinder.

DTC Code DTC Detection Condition Trouble Area
B1402 When an improper key (a key not registered in the main body ECU (network gateway ECU)) is inserted into the ignition key cylinder.

  • Key

  • 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. CHECK FOR DTC


    1. Check for DTCs Click here.

      OK
      DTC B1410 and B1411 is not output.

    NG

    GO TO DTC CHART Click here

    OK

  2. REGISTER KEY


    1. Reregister the key (Refer to Service Bulletin).

      OK
      The key ID can be registered.

    OK

    END

    NG

  3. REGISTER KEY


    1. Using an unregistered key, register the key ID (Refer to Service Bulletin).

      OK
      The key ID can be registered.

    OK

    END

    NG

    REPLACE MAIN BODY ECU (NETWORK GATEWAY ECU) Click here