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Home >> Toyota >> 2020 >> Corolla L >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 54 (Engine Control System (2ZR-FXE) - Diagnostics - Introduction (1 Of 3)) >> SFI System >> Precaution [04/2020 - 09/2022] >> Precaution [04/2020 - 09/2022]

Precaution [04/2020 - 09/2022]

WARNING: This page is about a different variant/trim than selected.
  1. WHEN USING TECHSTREAM 
    WARNING:

    Observe the following items for safety reasons:

    • Before using the Techstream, read the instruction manual.
    • Prevent the Techstream cable from being caught on the pedals, shift lever or steering wheel when driving with the Techstream connected to the vehicle.
    • When driving the vehicle for testing purposes using the Techstream, 2 persons are required. One to drive the vehicle, and another to operate the Techstream.
  2. INITIALIZATION 
    NOTE:
    • Perform Registration (VIN registration) after replacing the ECM.

      Refer to REGISTRATION [01/2019 - ] 

    • Perform Learning Value Reset and Idle Learning after replacing or servicing parts related to engine operation.

      Refer to INITIALIZATION [01/2019 - 09/2022] 

    • Perform "Grill Shutter Control Mode Switching and Grill Shutter Initialization" after replacing the swing grille actuator assembly or radiator shutter sub-assembly.

      Refer to INITIALIZATION [01/2019 - 09/2022]

    • When the cable is disconnected from the negative (-) auxiliary battery terminal, initialize the following system(s) after the cable is reconnected.
      System Name See Procedure
      Lane Control System (for HV Model) Refer to INITIALIZATION [04/2020 - 09/2022]
      Pre-collision System (for HV Model)
  3. PRECAUTIONS FOR INSPECTING HYBRID CONTROL SYSTEM 
    1. Refer to Hybrid Control System.

      for Nickel Metal Hydride Battery: Refer to PRECAUTION [01/2019 - 09/2022]

      for Lithium-ion Battery: Refer to PRECAUTION [04/2020 - 09/2022]

  4. NOTICE FOR HYBRID CONTROL SYSTEM ACTIVATION 
    1. Refer to Hybrid Control System.

      for Nickel Metal Hydride Battery: Refer to PRECAUTION [01/2019 - 09/2022]

      for Lithium-ion Battery: Refer to PRECAUTION [04/2020 - 09/2022]

  5. PRECAUTION WHEN RERLACING BATTERY ECU ASSEMBLY AND ECM (for Lithium-ion Battery) 
    1. Refer to Hybrid Control System.

      Refer to PRECAUTION [04/2020 - 09/2022]