IMMOBILISER SYSTEM, Diagnostic DTC:B2779

DTC Code DTC Name
B2779 Engine Starter Communication Malfunction

DESCRIPTION

When an internal malfunction occurs in the certification ECU (smart key ECU assembly), the certification ECU (smart key ECU assembly) stores this DTC.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Note

B2779

Engine Starter Communication Malfunction

An internal malfunction occurs in the certification ECU (smart key ECU assembly).

Certification ECU (smart key ECU assembly)

DTC output confirmation operation:

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

Vehicle Condition when Malfunction Detected

Fail-safe Operation when Malfunction Detected

Hybrid control system does not start with remote start operation

Hybrid control system cannot be started by remote start operation only
Table 2. Related Data List and Active Test

DTC No.

Data List and Active Test

B2779

-

CAUTION / NOTICE / HINT

Note:

  • Before replacing the certification ECU (smart key ECU assembly), refer to the Service Bulletin.

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

PROCEDURE

  1. CLEAR DTC

    1. Clear the DTCs.

      Click here

      Body Electrical > Entry&Start > Clear DTCs

    Result

    Proceed to

    NEXT
    NEXT

  2. CHECK DTC OUTPUT

    1. Check for DTCs.

      Click here

      Body Electrical > Entry&Start > Trouble Codes

    Result

    Proceed to

    DTC B2779 is not output

    DTC B2779 is output
    DTC B2779 is not output

    USE SIMULATION METHOD TO CHECK

    Click hereClick hereClick here

    DTC B2779 is output

    REPLACE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)