IMMOBILISER SYSTEM(w/o 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 immobiliser system is installed.

ECM

  • DTC Output Confirmation Operation:

  • Check for DTCs.

B279C95

Engine Immobiliser System Incorrect Assembly

An ECM that is incompatible with immobiliser system is installed.

ECM

  • DTC Output Confirmation Operation:

  • Check for DTCs.
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

DTC No.

Data List and Active Test

  • B279C*1

  • B279C95*2

-

*1: except 8NR-FTS

*2: for 8NR-FTS

CAUTION / NOTICE / HINT

Note:

  • If the ECM 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.

      Powertrain > Engine and ECT > Clear DTCs

      Powertrain > Engine and ECT > Clear DTCs

      Powertrain > Engine > Clear DTCs

    Result

    Proceed to

    NEXT
    NEXT

  2. CHECK FOR DTC

    1. Start the engine.

    2. Check for DTCs.

      Powertrain > Engine and ECT > Trouble Codes

      Powertrain > Engine and ECT > Trouble Codes

      Powertrain > Engine > Trouble Codes

      Tip:

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

      OK

      DTC 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 hereClick hereClick here

    B

  3. REPLACE CURRENT ECM WITH PROPER ECM

    1. Replace the current ECM with the proper ECM.

      for 1AD-FTV: Click here

      for 1ND-TV:Click here

      for 1NR-FE:Click here

      for 1ZR-FAE:Click here

      for 1ZR-FE:Click hereClick here

      for 2ZR-FE:Click hereClick here

      for 8NR-FTS:Click here

      for 1WW:Click here

    Result

    Proceed to

    NEXT
    NEXT

    END