ENGINE IMMOBILISER SYSTEM (w/o Smart Entry and Start System), Diagnostic DTC:B2795

DTC Code DTC Name
B2795 Unmatched Key Code

DESCRIPTION

This DTC is stored when a key with a different vehicle serial number is inserted into the ignition key cylinder.

DTC No. DTC Detection Condition Trouble Area DTC Output Confirmation Operation
B2795 A key with a different vehicle serial number is inserted into the ignition key cylinder (1 trip detection logic*).

  • Key

  • Transponder key ECU assembly

 Insert the key into the ignition key cylinder.

*: Only output while a malfunction is present.

Vehicle Condition and Fail-safe Operation when Malfunction Detected
Vehicle Condition when Malfunction Detected Fail-safe Operation when Malfunction Detected
Engine cannot be started -
Related Data List and Active Test Items
DTC No. Data List and Active Test
B2795 -

INSPECTION PROCEDURE

Note


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

  • After repair, confirm that no DTCs are output by performing "DTC Output Confirmation Operation".

  • When using the GTS with the vehicle ignition switch off, connect the GTS to the vehicle and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the GTS and the vehicle begins. Then select the Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Immobiliser. While using the GTS, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the GTS and the vehicle.

PROCEDURE


  1. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  2. CHECK FOR DTC


    1. Insert and remove each registered key one at a time, and check for DTCs each time Click here.

      Tech Tips


      • Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure.

      • If DTC B2795 is stored, check for DTCs with the next key after clearing the DTCs.

      OK
      DTC B2795 is not output.
      Result
      Result Proceed to
      DTC B2795 is not output A
      DTC B2795 is output for all of the keys B
      DTC B2795 is output for any of the keys C

    B

    REPLACE TRANSPONDER KEY ECU ASSEMBLY

    C

    CHECK OPERATION (IG ON) Click here

    A

    USE SIMULATION METHOD TO CHECK Click here

  3. CHECK OPERATION (IG ON)


    1. Check that the ignition switch can be turned to ON using the key for which the DTC was stored.

      OK
      Ignition switch can be turned to ON using the key (for which the DTC was stored).

    NG

    REPLACE KEY FOR WHICH DTC WAS OUTPUT

    OK

  4. REREGISTRATION


    1. Clear the DTCs Click here.

    2. Reregister the key ID code with the transponder key ECU assembly.

      OK
      Registration procedure can be completed.

    NG

    REPLACE KEY FOR WHICH DTC WAS OUTPUT

    OK

    END (KEY REGISTRATION FAILURE)