ENGINE IMMOBILISER SYSTEM(w/o Power Switch), 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 Code 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.

Vehicle Condition and Fail-safe Operation when Malfunction Detected
Vehicle Condition when Malfunction Detected Fail-safe Operation When Malfunction Detected
Hybrid control system cannot be started -
Related Data List and Active Test
DTC Code Data List and Active Test
B2795 Different Serial Number

CAUTION / NOTICE / HINT

Note


  • When replacing the key or transponder key ECU assembly, refer to Service Bulletin.

  • After performing repairs, perform the operation that fulfills the DTC output confirmation operation, and then confirm that no DTCs are output again.

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
      OK A
      NG (any key) B
      NG (all keys) C

    A

    USE SIMULATION METHOD TO CHECK Click here

    C

    REPLACE TRANSPONDER KEY ECU ASSEMBLY Click here

    B

  3. CHECK IGNITION SWITCH (OPERATION)


    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 THAT CANNOT START HYBRID CONTROL SYSTEM

    OK

  4. REREGISTER MALFUNCTIONING KEY


    1. Clear the DTCs Click here.

    2. Reregister the key code with the transponder key ECU assembly (Refer to Service Bulletin).

      OK
      Registration procedure can be completed.

    OK

    END (KEY CODE IS NOT REGISTERED NORMALLY)

    NG

    REPLACE KEY THAT CANNOT START HYBRID CONTROL SYSTEM

  5. REPLACE TRANSPONDER KEY ECU ASSEMBLY


    1. Replace the transponder key ECU assembly with a new one (Refer to Service Bulletin).


    NEXT

  6. REGISTER KEY


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


    NEXT

  7. REGISTER ECU COMMUNICATION ID


    1. Register the ECU communication ID (Refer to Service Bulletin).


    NEXT

  8. CLEAR DTC


    1. Clear the DTCs Click here.


    NEXT

  9. CHECK FOR DTC


    1. Check for DTCs 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.

    OK

    END (TRANSPONDER KEY ECU ASSEMBLY WAS DEFECTIVE)

    NG

    REPLACE KEY THAT CANNOT START HYBRID CONTROL SYSTEM