Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM100000001HZMK
Model Year Start: 2020 Model: GR Corolla Prod Date Range: [03/2019 - 09/2022]
Title: THEFT DETERRENT / KEYLESS ENTRY: CERTIFICATION ECU: REMOVAL; 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 09/2022]

REMOVAL

CAUTION / NOTICE / HINT

The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed and installed, or replaced during certification ECU (smart key ECU assembly) removal/installation are shown below.

Necessary Procedure After Parts Removed/Installed/Replaced (for HV Model)

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function When Necessary Procedures are not Performed

Link

Disconnect cable from negative (-) auxiliary battery terminal

Perform steering sensor zero point calibration

Lane Control System (for HV Model)

2020 - 2022 MY Corolla Corolla HV [01/2019 - 09/2022]; PRE-COLLISION: PRE-COLLISION SYSTEM (for HV Model): INITIALIZATION

Pre-collision System (for HV Model)

Certification ECU (Smart key ECU assembly)

Code registration (Smart Key System (for Start Function, HV Model))
  • Wireless Door Lock Control System (for HV Model)
  • Smart Key System (for Entry Function, HV Model)
  • Smart Key System (for Start Function, HV Model)
  • Steering lock function

2020 MY Corolla Corolla HV [01/2019 - 04/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): REGISTRATION 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, HV Model): REGISTRATION

NOTICE:

After the power switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Audio and Visual System (for HV Model))

Necessary Procedure After Parts Removed/Installed/Replaced (for Gasoline Model)

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function When Necessary Procedures are not Performed

Link
*1: for Hatchback

*2: w/ Smart Key System

Disconnect cable from negative (-) battery terminal

Perform steering sensor zero point calibration

Lane Control System (for Gasoline Model)

2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; PRE-COLLISION: PRE-COLLISION SYSTEM (for Gasoline Model): INITIALIZATION

Pre-collision System (for Gasoline Model)

Lighting System (w/ AFS)(EXT)

Initialize back door lock*1

Power Door Lock Control System (for Hatchback, Gasoline Model)

2019 - 2022 MY Corolla Corolla Hatchback GR Corolla [06/2018 - 09/2022]; DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM (for Hatchback, Gasoline Model): INITIALIZATION

Certification ECU (smart key ECU assembly)*2

Code registration (Smart Key System (for Gasoline Model, Start Function))
  • Wireless Door Lock Control System (for Gasoline Model with Smart Key System)
  • Smart Key System (for Gasoline Model, Entry Function)
  • Smart Key System (for Gasoline Model, Start Function)
  • Steering lock function

2020 MY Corolla Corolla Hatchback GR Corolla [01/2019 - 09/2019]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION 2020 MY Corolla Corolla Hatchback GR Corolla [09/2019 - 04/2020]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION 2021 - 2022 MY Corolla Corolla Hatchback GR Corolla [04/2020 - 09/2022]; THEFT DETERRENT / KEYLESS ENTRY: SMART KEY SYSTEM (for Start Function, Gasoline Model): REGISTRATION

NOTICE:

After the ignition switch is turned off, the radio and display receiver assembly records various types of memory and settings. As a result, after turning the ignition switch off, make sure to wait at least 85 seconds before disconnecting the cable from the negative (-) battery terminal. (for Navigation System and Audio and Visual System (for Gasoline Model))

PROCEDURE

1. REMOVE NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY

Click here 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV [01/2019 - 09/2022]; INTERIOR PANELS / TRIM: FRONT CONSOLE BOX (except G16E-GTS): REMOVAL+

2. REMOVE LOWER CENTER INSTRUMENT PANEL FINISH PANEL

Click here 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV [01/2019 - 09/2022]; INTERIOR PANELS / TRIM: FRONT CONSOLE BOX (except G16E-GTS): REMOVAL+

3. REMOVE FRONT DOOR SCUFF PLATE RH

HINT:

Use the same procedure as for the LH side.

Click here 2019 - 2021 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 06/2020]; INTERIOR PANELS / TRIM: ROOF HEADLINING (for Hatchback): REMOVAL+ 2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2020 - 09/2022]; INTERIOR PANELS / TRIM: ROOF HEADLINING (for Hatchback): REMOVAL+

4. REMOVE COWL SIDE TRIM SUB-ASSEMBLY RH

HINT:

Use the same procedure as for the LH side.

Click here 2019 - 2021 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 06/2020]; INTERIOR PANELS / TRIM: ROOF HEADLINING (for Hatchback): REMOVAL+ 2021 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2020 - 09/2022]; INTERIOR PANELS / TRIM: ROOF HEADLINING (for Hatchback): REMOVAL+

5. DISCONNECT FRONT DOOR OPENING TRIM WEATHERSTRIP RH

Click here 2020 - 2021 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 06/2021]; INTERIOR PANELS / TRIM: INSTRUMENT PANEL SAFETY PAD: REMOVAL+ 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2021 - 09/2022]; INTERIOR PANELS / TRIM: INSTRUMENT PANEL SAFETY PAD: REMOVAL+

6. REMOVE NO. 2 INSTRUMENT SIDE PANEL

Click here 2020 - 2021 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 06/2021]; INTERIOR PANELS / TRIM: INSTRUMENT PANEL SAFETY PAD: REMOVAL+ 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2021 - 09/2022]; INTERIOR PANELS / TRIM: INSTRUMENT PANEL SAFETY PAD: REMOVAL+

7. REMOVE CENTER INSTRUMENT CLUSTER FINISH PANEL SUB-ASSEMBLY

Click here 2020 - 2021 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 06/2021]; INTERIOR PANELS / TRIM: INSTRUMENT PANEL SAFETY PAD: REMOVAL+ 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2021 - 09/2022]; INTERIOR PANELS / TRIM: INSTRUMENT PANEL SAFETY PAD: REMOVAL+

8. REMOVE AIR CONDITIONING CONTROL ASSEMBLY

Click here 2019 - 2025 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 -        ]; HEATING / AIR CONDITIONING: AIR CONDITIONING PANEL: REMOVAL+

9. REMOVE CENTER INSTRUMENT PANEL REGISTER ASSEMBLY

Click here 2020 - 2021 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 06/2021]; INTERIOR PANELS / TRIM: INSTRUMENT PANEL SAFETY PAD: REMOVAL+ 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2021 - 09/2022]; INTERIOR PANELS / TRIM: INSTRUMENT PANEL SAFETY PAD: REMOVAL+

10. REMOVE INSTRUMENT CLUSTER FINISH PANEL GARNISH ASSEMBLY

Click here 2020 - 2021 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 06/2021]; INTERIOR PANELS / TRIM: INSTRUMENT PANEL SAFETY PAD: REMOVAL+ 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2021 - 09/2022]; INTERIOR PANELS / TRIM: INSTRUMENT PANEL SAFETY PAD: REMOVAL+

11. REMOVE GLOVE COMPARTMENT DOOR ASSEMBLY

Click here 2020 - 2021 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 06/2021]; INTERIOR PANELS / TRIM: INSTRUMENT PANEL SAFETY PAD: REMOVAL+ 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2021 - 09/2022]; INTERIOR PANELS / TRIM: INSTRUMENT PANEL SAFETY PAD: REMOVAL+

12. REMOVE LOWER NO. 2 INSTRUMENT PANEL FINISH PANEL

Click here 2020 - 2021 MY Corolla Corolla Hatchback Corolla HV GR Corolla [03/2019 - 06/2021]; INTERIOR PANELS / TRIM: INSTRUMENT PANEL SAFETY PAD: REMOVAL+ 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2021 - 09/2022]; INTERIOR PANELS / TRIM: INSTRUMENT PANEL SAFETY PAD: REMOVAL+

13. REMOVE ECU INTEGRATION BOX RH

Click here 2019 - 2022 MY Corolla Corolla Hatchback Corolla HV GR Corolla [06/2018 - 09/2022]; NETWORKING: NETWORK GATEWAY ECU: REMOVAL+

14. REMOVE CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)

(a) Disengage the 2 claws and remove the certification ECU (smart key ECU assembly) as shown in the illustration.

NOTICE:

  • If the ECU integration box RH is deformed or damaged, replace it.
  • Do not bend the 2 claws more than necessary.

Remove in this Direction