Computers and Control Systems: Service Precautions

2AZ-FE ENGINE CONTROL SYSTEM: SFI SYSTEM:

PRECAUTION

NOTICE:
- Perform RESET MEMORY (AT initialization) when replacing the automatic transmission assembly, engine assembly or ECM (Programming and Relearning).
- Perform REGISTRATION (VIN registration) when replacing the ECM (Programming and Relearning).

HINT: Initialization cannot be completed by removing the battery.