M20A-FKS (EMISSION CONTROL): EGR COOLER: REMOVAL; 2023 MY Corolla Corolla Hatchback [09/2022

Last Modified: 07-31-2024	6.11:8.1.0	Doc ID: RM100000002715T
Model Year Start: 2023	Model: Corolla Hatchback	Prod Date Range: [09/2022 - 11/2022]
Title: M20A-FKS (EMISSION CONTROL): EGR COOLER: REMOVAL; 2023 MY Corolla Corolla Hatchback [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 EGR cooler assembly 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
Gas leaks from exhaust system is repaired	Inspection after repair	Poor idle, etc. Engine start function, etc.

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 3 minutes before disconnecting the cable from the negative (-) auxiliary battery terminal (for Gasoline Model)
When the cable is disconnected from the negative (-) auxiliary battery terminal and the security lock setting has been enabled, multi-display operations will be disabled upon next startup unless the password is entered. Be sure to check the security lock setting before disconnecting the cable from the negative (-) auxiliary battery terminal. (for Audio and Visual System (for Single Knob Type))

HINT:

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

Items for which learning is completed by driving the vehicle

Effect/Inoperative Function when Necessary Procedure not Performed	Necessary Procedure	Necessary Procedure
Front Camera System (for TMC Made)	Drive the vehicle straight ahead at 15 km/h (9 mph) or more for 1 second or more.
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)

Items for which learning is completed by operating the vehicle normally

Effect/Inoperative Function when Necessary Procedure not Performed	Necessary Procedure	Necessary Procedure
*1: for Hatchback
Power Door Lock Control System Back door opener*1	Perform door unlock operation with door control switch or electrical key transmitter sub-assembly switch.

PROCEDURE

1. DRAIN ENGINE COOLANT (for Fully Sealed Type)

Click here

2. DRAIN ENGINE COOLANT (for Non-Fully Sealed Type)

Click here

3. REMOVE AIR CLEANER CAP WITH AIR CLEANER HOSE

Click here

4. REMOVE BATTERY

Click here

5. DISCONNECT ENGINE WIRE

(a) Remove the 3 bolts.

(b) Disconnect the 4 connectors.

(d) Disconnect the 5 connectors.

(e) Disengage the 3 wire harness clamps and disconnect the engine wire.

(f) Remove the bolt and 2 nuts.

(g) Disconnect the 4 connectors.

(h) Disengage the wire harness clamp and disconnect the engine wire.

6. REMOVE EGR COOLER ASSEMBLY

(a) Slide the 2 clips and disconnect the No. 3 water by-pass hose and No. 4 water by-pass hose from the EGR cooler assembly.

*1	No. 3 Water By-pass Hose
*2	No. 4 Water By-pass Hose

(b) Remove the 2 bolts and wire harness clamp bracket from the EGR cooler assembly.

(1) Remove the 2 bolts and 3 nuts and EGR cooler assembly from the cylinder head sub-assembly and EGR valve assembly.

*a	Bolt or Nut

(d) Type B:

(1) Remove the 3 bolts and 2 nuts and EGR cooler assembly from the cylinder head sub-assembly and EGR valve assembly.

(e) Remove the EGR valve gasket from the EGR cooler assembly.

*1	EGR Valve Gasket
*2	EGR Cooler Gasket

(f) Remove the EGR cooler gasket from the EGR cooler assembly.