ECD SYSTEM INITIALIZATION

Tech Tips

After replacing the supply pump and/or the ECM.


  • If the engine is defective or stalls immediately after startup, the ECM's learned values must be initialized. The engine can be initialized through the intelligent tester or by short circuiting DLC3 terminals.

  • If the engine starts normally, initialization is not necessary. Perform steps (i) and (j) only.


  1. SUPPLY PUMP INITIALIZATION PROCEDURE


    1. A01BB1C

      When using intelligent tester :


      1. Connect the intelligent tester to the DLC3.

      2. Turn the ignition switch ON.

        Note

        Do not start the engine.

      3. Turn the intelligent tester ON.

      4. Enter the following menus: Power train / Engine / Utility / Supply Pump Initialization.

      5. Press Next.

      6. A01BADB

        Press Next.

      7. A01BFOO

        Press Exit.

      8. Start the engine to check if the initialization is complete. If the engine cannot be started, repeat the initialization procedures from the beginning.

      9. Idle the engine for at least 1 minute under the following conditions:


        • The water temperature is 60°C (140°F) or more.

        • The fuel temperature is 20°C (68°F) or more.

        Note

        Do not race the engine immediately after starting the engine. After idling the engine, racing the engine is acceptable.

        Tech Tips


        • The water temperature can be estimated by touching the outlet hose.

        • The fuel temperature can be estimated by using the ambient temperature as a substitute.

        • If the water temperature is difficult to estimate, use the intelligent tester and enter the following menus: Power train / Engine / Data List / Coolant Temp.

      10. Initialization is complete.

    2. When not using intelligent tester :


      1. Using SST, connect the terminals TC and CG of the DLC3.

        SST
        09843-18040

      2. Turn ignition switch ON.

      3. Wait 3 minutes.

      4. Turn ignition switch OFF.

      5. Remove connection from terminals TC and CG.

      6. Start engine.

        If the engine cannot be started, repeat the initialization procedures from the beginning.

      7. Idle engine for at least 1 minute under the following conditions:


        • The water temperature is 60°C (140°F) or more.

        • The fuel temperature is 20°C (68°F) or more.

        Note


        • Do not race engine immediately after starting engine.

        • After idling engine, racing engine is acceptable.

        Tech Tips


        • Water temperature can be estimated by touching outlet hose.

        • Fuel temperature can be estimated by using ambient temperature as a substitute.

      8. Initialization complete.