Toyota Yaris: Sfi System / Precaution

Toyota Yaris XP210 (2020-2024) Reapir and Service Manual / Engine & Hybrid System / G16e-gts (engine Control) / Sfi System / Precaution




  • Before replacing the ECM, refer to Service Bulletin (for Immobiliser System).
  • When the ECM is replaced, update the ECU security key.

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Observe the following items for safety reasons:

  • Before using the GTS, read the instruction manual.
  • Prevent the GTS cable from being caught on the pedals, shift lever or steering wheel when driving with the GTS connected to the vehicle.
  • When driving the vehicle for testing purposes using the GTS, 2 persons are required. One drives the vehicle, and the other operates the GTS.



After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.

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When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.

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    Sfi System


    Definition Of Terms

    DEFINITION OF TERMS Term Definition Monitor Description Description of what the ECM monitors and how it detects malfunctions (monitoring purpose and details)...

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    Fuel-Filler Lid and Cap


    When removing the fuel-filler cap, loosen the cap slightly and wait for any hissing to stop, then remove it

    Fuel spray is dangerous. Fuel can burn skin and eyes and cause illness if ingested. Fuel spray is released when there is pressure in the fuel tank and the fuel-filler cap is removed too quickly.

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