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 circuit DLC3 terminals.
If the engine starts normally, initialization is not necessary. Perform step the "idle the engine" procedure below only when using the intelligent tester.

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. Select the following menu items: Powertrain / Engine and ECT / Utility / Supply Pump Initialization.
5. Press Next.
6. Press Next.
7. 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.
  Note
  - Do not race the engine immediately after starting the engine.
  - After idling the engine, racing the engine is acceptable.
  1. 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.
    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 and fuel temperature is difficult to estimate, use the intelligent tester and select the following menu items: Powertrain / Engine and ECT / Data List / Coolant Temp.
10. Initialization is complete.
When not using intelligent tester
1. Using SST, connect terminals TC and CG of the DLC3.
  
  SST
  
  09843-18040
2. Turn the ignition switch ON.
3. Wait 3 minutes.
4. Turn the ignition switch OFF.
5. Remove the connections from terminals TC and CG.
6. Start the engine.
  
  If the engine cannot be started, repeat the initialization procedures from the beginning.
7. Idle the engine.
  Note
  - Do not race the engine immediately after starting the engine.
  - After idling the engine, racing the engine is acceptable.
  1. 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.
      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.
8. Initialization is complete.