ECD SYSTEM INITIALIZATION


  1. SUPPLY PUMP INITIALIZATION PROCEDURE

    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 A (See procedure "A") and B (See procedure "B") only.


    1. Replace the normal DLC3 cable (12 V specification) for the intelligent tester with the 24 V DLC3 cable.

      Note

      Be sure to use the 24 V DLC3 cable when connecting the intelligent tester to the DLC3. Using the normal DLC3 cable (12 V specification) will cause damage to the tester.

    2. A01CIQ9

      Connect the intelligent tester to the DLC3.

    3. Turn the ignition switch to the ON position.

      Note

      Do not start the engine.

    4. Turn the intelligent tester on.

    5. Enter the following menu items: Powertrain / Engine and ECT / Utility / Supply Pump Initialization.

    6. Press "Next".

    7. A01CI3R

      Press "Next".

    8. A01CHEK

      Press "Exit".

    9. Start the engine to check if initialization is complete. If the engine cannot be started, repeat the initialization procedures from the beginning (Procedure "A").

    10. Idle the engine for at least 1 minute under the following conditions (Procedure "B"):


      • 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 warming up 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 menu items: Powertrain / Engine and ECT / Data List / Coolant Temp.

    11. Initialization is complete.