IMMOBILISER SYSTEM(w/ Entry and Start System), Diagnostic DTC:B279C and B279C95

DTC Code DTC Name
B279C Theft Deterrent System Presence Detection
B279C95 Engine Immobiliser System Incorrect Assembly

DESCRIPTION

If an ECM that is incompatible with the immobiliser system is installed, the ECM stores this DTC.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

Note

B279C

Theft Deterrent System Presence Detection

An ECM that is incompatible with the immobiliser system is installed (1-trip detection logic*).

ECM

DTC output confirmation operation:

  • Check for DTCs.

B279C95

Engine Immobiliser System Incorrect Assembly

An ECM that is incompatible with the immobiliser system is installed (1-trip detection logic*).

ECM

DTC output confirmation operation:

  • Check for DTCs.

  • *: Only detected while a malfunction is present.

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

Vehicle Condition when Malfunction Detected

Fail-safe Function when Malfunction Detected

Engine cannot be started

-
Table 2. Related Data List and Active Test

DTC No.

Data List and Active Test

  • B279C*1

  • B279C95*2

-

  • *1: except 8NR-FTS

  • *2: for 8NR-FTS

CAUTION / NOTICE / HINT

Note:

  • When using the GTS with the engine switch off, connect the GTS to the DLC3 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 Model Code "KEY REGIST" under manual mode and enter the following menus: Body Electrical / Entry&Start(CAN). 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.

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

PROCEDURE

  1. CLEAR DTC

    1. Clear the DTCs.

      Powertrain > Engine and ECT > Clear DTCs

      Powertrain > Engine > Trouble Codes

    Result

    Proceed to

    NEXT
    NEXT

  2. CHECK FOR DTC

    1. Check for DTCs.

      Powertrain > Engine and ECT > Trouble Codes

      Powertrain > Engine > Trouble Codes

      Tip:

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

      OK

      B279C*1 or B279C95*2 is not output.

    Result

    Result

    Proceed to

    DTC B279C*1 or B279C95*2 is not output

    A

    DTC B279C*1 or B279C95*2 is output

    B

    • *1: except 8NR-FTS

    • *2: for 8NR-FTS

    A

    USE SIMULATION METHOD TO CHECK

    Click here

    B

  3. REPLACE CURRENT ECM WITH PROPER ECM

    1. Replace the current ECM with the proper ECM.

      for 1ND-TV:Click here

      for 1NR-FE:Click here

      for 1ZR-FAE:Click here

      for 1ZR-FE:Click here

      for 2ZR-FE:Click here

      for 8NR-FTS:Click here

    Result

    Proceed to

    NEXT
    NEXT

    END