IMMOBILISER SYSTEM(w/o 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.

Detection Item

DTC Detection Condition

Trouble Area

Note

B2795

Unmatched Key Code

A key with a different vehicle serial number is inserted into the ignition key cylinder (1 trip detection logic*).

  • Key

  • Transponder key ECU assembly

  • DTC Output Confirmation Operation:

  • Insert the key into the ignition key cylinder.

  • *: Only output while a malfunction is present.

Table 1. Vehicle Condition and Fail-safe Operation when Malfunction Detected

Vehicle Condition when Malfunction Detected

Fail-safe Operation when Malfunction Detected

Engine cannot be started

-
Table 2. Related Data List and Active Test Items

DTC No.

Data List and Active Test

B2795

-

CAUTION / NOTICE / HINT

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".

PROCEDURE

  1. CLEAR DTC

    1. Clear the DTCs.

      Body Electrical > Immobiliser > Clear DTCs

    Result

    Proceed to

    NEXT
    NEXT

  2. CHECK FOR DTC

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

      Body Electrical > Immobiliser > Trouble Codes

      Tip:

      • 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

    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
    A

    USE SIMULATION METHOD TO CHECK

    Click hereClick hereClick hereClick hereClick hereClick hereClick here

    B

    REPLACE TRANSPONDER KEY ECU ASSEMBLY

    C

  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).

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE KEY THAT DTC IS OUTPUT

    OK

  4. REREGISTRATION

    1. Clear the DTCs.

      Click hereClick hereClick here

      Body Electrical > Immobiliser > Clear DTCs

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

      OK

      Registration procedure can be completed.

    Result

    Proceed to

    OK

    NG
    OK

    END (KEY REGISTRATION FAILURE)

    NG

    REPLACE KEY THAT DTC IS OUTPUT