Last Modified: 01-27-2025 6.11:8.1.0 Doc ID: RM100000001GYKD
Model Year Start: 2020 Model: Corolla Prod Date Range: [01/2019 - 03/2019]
Title: 2ZR-FAE (ENGINE CONTROL): ENGINE COOLANT TEMPERATURE SENSOR: REMOVAL; 2020 MY Corolla [01/2019 - 03/2019]

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 engine coolant temperature sensor removal/installation are shown below.

Necessary Procedures After Parts Removed/Installed/Replaced

Replaced Part or Performed Procedure

Necessary Procedure

Effect/Inoperative Function when Necessary Procedure not Performed

Link

Battery terminal is disconnected/reconnected

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)

Replacement of engine coolant temperature sensor

Inspection after repair
  • Poor idle, etc.
  • Engine start function, etc.

2020 - 2023 MY Corolla [01/2019 - 11/2022]; 2ZR-FAE (ENGINE CONTROL): SFI SYSTEM: INITIALIZATION

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

PROCEDURE

1. DRAIN ENGINE COOLANT

Click here 2020 - 2023 MY Corolla [01/2019 - 11/2022]; MAINTENANCE: 2ZR-FAE COOLANT: REPLACEMENT+

2. REMOVE BATTERY

Click here 2020 MY Corolla [01/2019 - 03/2019]; MAINTENANCE: 2ZR-FAE BATTERY: REMOVAL

3. REMOVE ENGINE COOLANT TEMPERATURE SENSOR

(a) Disconnect the engine coolant temperature sensor connector.

(b) Using SST, remove the engine coolant temperature sensor from the cylinder head sub-assembly.

SST: 09817-33191

NOTICE:

If the engine coolant temperature sensor has been struck or dropped, replace it.

(c) Remove the gasket from the engine coolant temperature sensor.