Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Computers and Control Systems: Service Precautions





3UZ-FE ENGINE CONTROL SYSTEM: SFI SYSTEM: PRECAUTION

NOTICE:
* Perform initialization (throttle position) after replacing the throttle body assembly or cleaning any throttle body components Installation.
* Perform initialization (throttle position) after reconnecting the battery cable or replacing the ECM Installation.
* Initialize the following systems after disconnecting and reconnecting the cable from the negative (-) battery terminal.






* Perform the RESET MEMORY (A/T initialization) operation after replacing the automatic transmission assembly, engine assembly or ECM.
* Perform Registration (VIN registration) when replacing the ECM Programming and Relearning.
HINT
RESET MEMORY cannot be completed by only disconnecting the cable from the negative (-) battery terminal.