Last Modified: 08-22-2025 6.11:8.1.0 Doc ID: RM100000001GEG2
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 04/2020]
Title: 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: PRECAUTION; 2020 MY Corolla Corolla HV [01/2019 - 04/2020]

PRECAUTION

WHEN USING TECHSTREAM

CAUTION:

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.

INITIALIZATION

NOTICE:

  • Perform Registration (VIN registration) after replacing the ECM.

    Click here 2020 - 2026 MY Corolla Corolla HV [01/2019 -        ]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: REGISTRATION

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

    Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

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

    Click here 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV [01/2019 - 09/2022]; EXTERIOR PANELS / TRIM: GRILLE SHUTTER SYSTEM: INITIALIZATION

  • 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)

    2020 MY Corolla Corolla Hatchback Corolla HV [01/2019 - 03/2019]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2020 MY Corolla Corolla Hatchback Corolla HV [03/2019 - 09/2019]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION 2020 MY Corolla Corolla Hatchback Corolla HV [09/2019 - 04/2020]; INTRODUCTION: REPAIR INSTRUCTION: INITIALIZATION

    Pre-collision System (for HV Model)

PRECAUTIONS FOR INSPECTING HYBRID CONTROL SYSTEM

(a) Refer to Hybrid Control System.

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): PRECAUTION

NOTICE FOR HYBRID CONTROL SYSTEM ACTIVATION

(a) Refer to Hybrid Control System.

Click here 2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY): PRECAUTION