2ZR-FAE (ENGINE CONTROL): ENGINE COOLANT TEMPERATURE SENSOR: REMOVAL; 2023 MY Corolla [09/2022

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM10000000270PB
Model Year Start: 2023	Model: Corolla	Prod Date Range: [09/2022 - 11/2022]
Title: 2ZR-FAE (ENGINE CONTROL): ENGINE COOLANT TEMPERATURE SENSOR: REMOVAL; 2023 MY Corolla [09/2022 - 11/2022]

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 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
Replacement of engine coolant temperature sensor	Inspection after repair	Poor idle, etc. Engine start function, etc.

HINT:

When the cable is disconnected / reconnected to the battery terminal, systems temporarily stop operating. However, each system has a function that completes learning the first time the system is used.

Learning completes when vehicle is driven

Effect/Inoperative Function when Necessary Procedure not Performed	Necessary Procedure	Link
Pre-collision System (for TMMMS Made)	Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 seconds or more.
Lane Tracing Assist System (for TMMMS Made)
Lane Departure Alert System (for TMMMS Made)

PROCEDURE

1. DRAIN ENGINE COOLANT

Click here

2. REMOVE BATTERY

Click here

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.