ECD SYSTEM(w/ Glow Plug Controller) INITIALIZATION

Tech Tips


  • After replacing any of the injector assemblies, perform both the "Injector Compensation" and the "Pilot Quantity Learning Values Reset" functions using the GTS. If any of the injector assemblies and the ECM are replaced at the same time, perform the same initialization/registrations as when replacing the ECM.

  • After replacing the air fuel ratio sensor, perform the "A/F Sensor Compensation Reset" function using the GTS. If the air fuel ratio sensor and the ECM are replaced at the same time, perform the same initialization/registrations as when replacing the ECM.

  • After replacing the No. 2 exhaust manifold, perform the "DPF Deterioration Record Clear" function using the GTS. If the No. 2 exhaust manifold and the ECM are replaced at the same time, perform the same initialization/registrations as when replacing the ECM.

  • After replacing the engine assembly, perform both the "Injector Compensation" and the "Pilot Quantity Learning Values Reset" functions using the GTS. If the engine assembly and the ECM are replaced at the same time, perform the same initialization/registrations as when replacing the ECM.


  1. When the diesel throttle body assembly, electric EGR control valve assembly or turbocharger sub-assembly is replaced, perform initialization


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine and ECT > Clear DTCs

    5. Turn the ignition switch to off within 10 seconds of clearing DTCs and wait for 30 seconds.

      Tech Tips

      The ignition switch must be turned off before DTC recurs.

    6. Turn the ignition switch to ON and wait for 10 seconds or more.

  2. Pilot Quantity Learning Values Reset (When replacing all injector assemblies)

    Tech Tips

    When any injector assemblies and/or the engine assembly are replaced, the pilot quantity learning values stored in the ECM must be reset.


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine and ECT / Utility / Pilot Quantity Learning Values Reset.


      Powertrain > Engine and ECT > Utility
      Tester Display
      Pilot Quantity Learning Values Reset
    5. A01LV4D

      Press "Next".

      Tech Tips

      Confirm that the ignition switch is ON and the engine is stopped.

    6. A01M1D8

      Select "All Injectors" and press "NEXT".

    7. A01LZ2L

      Press "EXIT".

  3. Pilot Quantity Learning Values Reset (When replacing specific any of the injector assemblies)

    Tech Tips

    When any injector assemblies and/or the engine assembly are replaced, the pilot quantity learning values stored in the ECM must be reset.


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine and ECT / Utility / Pilot Quantity Learning Values Reset.


      Powertrain > Engine and ECT > Utility
      Tester Display
      Pilot Quantity Learning Values Reset
    5. A01LV4D

      Press "Next".

      Tech Tips

      Confirm that the ignition switch is ON and the engine is stopped.

    6. A01LX0E

      Select "Specific Injector(s)" and press "NEXT".

    7. A01LXR8

      Select the cylinder(s) where injector(s) was replaced, and press "NEXT".

    8. A01LZ2L

      Press "EXIT".

  4. DPF Deterioration Record Clear

    Tech Tips


    • This value is the ash accumulation volume in the DPF catalytic converter calculated by the ECM. If the ash accumulation volume in the DPF catalytic converter increases, the difference in pressure in front of and behind the DPF catalytic converter will increase. The difference in pressure in front of and behind the DPF catalytic converter is offset depending on the volume of accumulated ash.

    • When a DPF catalyst is replaced, the DPF deterioration record stored in the ECM must be cleared.


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine and ECT / Utility / DPF Deterioration Record Clear.


      Powertrain > Engine and ECT > Utility
      Tester Display
      DPF Deterioration Record Clear
    5. A01M29U

      Press "Next".

      Tech Tips

      Confirm that the ignition switch is ON and the engine is stopped.

    6. A01LUVU

      Press "Next".

  5. A/F Sensor Compensation Reset (When replace Air Fuel Ratio Sensor (Bank 1 Sensor 1))

    Tech Tips

    When an air fuel ratio sensor (bank 1 sensor 1) is replaced, the A/F sensor compensation learning value stored in the ECM must be reset.


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine and ECT / Utility / A/F Sensor Compensation Reset.


      Powertrain > Engine and ECT > Utility
      Tester Display
      A/F Sensor Compensation Reset
    5. A01M33T

      Press "Next".

      Tech Tips

      Confirm that the ignition switch is ON and the engine is stopped.

    6. A01M1LT

      Select "A/F Sensor B1S1" and press "Next".

    7. A01LYIM

      Press "EXIT".

  6. A/F Sensor Compensation Reset (When replace Air Fuel Ratio Sensor (Bank 1 Sensor 2))

    Tech Tips

    When an air fuel ratio sensor (bank 1 sensor 2) is replaced, the A/F sensor compensation learning value stored in the ECM must be reset.


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine and ECT / Utility / A/F Sensor Compensation Reset.


      Powertrain > Engine and ECT > Utility
      Tester Display
      A/F Sensor Compensation Reset
    5. A01M33T

      Press "Next".

      Tech Tips

      Confirm that the ignition switch is ON and the engine is stopped.

    6. A01LXFA

      Select "A/F Sensor B1S2" and press "Next".

    7. A01LYIM

      Press "EXIT".