SMART ENTRY AND START SYSTEM(for Start Function), Diagnostic DTC:B279C, 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 function is installed, the ECM will store 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 function is installed. (1-trip detection logic*) ECM -
B279C95 Engine Immobiliser System Incorrect Assembly An ECM that is incompatible with the immobiliser function is installed. (1-trip detection logic*) ECM -

Vehicle Condition and Fail-safe Function when Malfunction Detected
Vehicle Condition when Malfunction Detected Fail-safe Function when Malfunction Detected
Engine cannot be started -
Related Data List and Active Test
DTC No. Data List and Active Test

B279C*1

B279C95*2

 -

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.

  • The smart entry and start system (for Start Function) uses the LIN communication system and CAN communication system. Inspect the communication function by following How to Proceed with Troubleshooting. Troubleshoot the smart entry and start system (for Start Function) after confirming that the communication systems are functioning properly.

    Click here

  • Before replacing the ECM, refer to Service Bulletin.

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

PROCEDURE


  1. REPLACE ECM


    1. Temporarily replace the ECM with a new one.

      for A25A-FKS: Click here

      for 2GR-FKS: Click here

      for 2AR-FE: Click here

      Result
      Proceed to
      NEXT

    NEXT

    END (ECM WAS DEFECTIVE)