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

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DTC Code DTC Name
B279C Theft Deterrent System Presence Detection
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DESCRIPTION

This code is stored when an ECM that is incompatible with the engine immobiliser system is installed to the vehicle.

DTC No. Detection Item DTC Detection Condition Trouble Area Note
B279C Theft Deterrent System Presence Detection An ECM that is incompatible with the engine immobiliser system is installed (1 trip detection logic*). 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 -
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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".

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PROCEDURE


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    CLEAR DTC


    1. Clear the DTCs.

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      1. Powertrain > Engine > Clear DTCs


      Result
      Proceed to
      NEXT

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    CHECK FOR DTC


    1. Start the engine.

    2. Check for DTCs.

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      1. Powertrain > Engine > Trouble Codes


      Tip:

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

      OK
      DTC B279C is not output.
      Result
      Proceed to
      OK
      NG

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    REPLACE CURRENT ECM WITH PROPER ECM


    1. Replace the current ECM with the proper ECM.


      Result
      Proceed to
      NEXT

    • NEXT

      END