SFI SYSTEM DTC CHECK / CLEAR

Tech Tips


  • DTCs which are stored in the ECM can be displayed on the intelligent tester. The intelligent tester can display both current and pending DTCs.

  • Some DTCs are not stored if the ECM does not detect the same malfunction again during a second consecutive driving cycle. However, such malfunctions, detected on only one occasion, are stored as pending DTCs.


  1. CHECK FOR DTC (Using intelligent tester)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

    4. Enter the following menus: Powertrain / Engine and ECT / DTC.

    5. Check the DTC(s) and freeze frame data, and then write them down.

    6. Check the details of the DTC(s) Click here.

  2. CLEAR DTC (Using intelligent tester)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the tester on.

    4. Enter the following menus: Powertrain / Engine and ECT / DTC / Clear.

    5. Press the YES button.

  3. CLEAR DTC (Without using intelligent tester)


    1. Perform either of the following operations:


      1. Disconnect the cable from the negative (-) battery terminal for more than 1 minute.

      2. Remove the EFI MAIN from the engine room relay block (located inside the engine compartment) for more than 1 minute.