STEERING COLUMN: STEERING COLUMN ASSEMBLY: REMOVAL; 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM10000000269NW
Model Year Start: 2023	Model: GR Corolla	Prod Date Range: [09/2022 - 11/2022]
Title: STEERING COLUMN: STEERING COLUMN ASSEMBLY: REMOVAL; 2023 MY Corolla Corolla Hatchback Corolla HV GR 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 steering column assembly removal/installation are shown below.

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

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed
*1: If matchmarks were not placed when removing parts related to steering operation, perform end position initial setting.
Power steering ECU assembly	Update ECU security key	Vehicle Control History (RoB) are stored
	ECU configuration	Vehicle Control History (RoB) are stored EPS warning light illuminates
	Perform power steering ECU initial setting (assist map writing)	Vehicle Control History (RoB) are stored EPS warning light illuminates
	End position initial setting	-
Electric power steering column sub-assembly	Perform power steering ECU initial setting (assist map writing)	Vehicle Control History (RoB) are stored EPS warning light illuminates
Electric power steering column sub-assembly	End position initial setting	-
No. 2 steering intermediate shaft assembly*1	End position initial setting	-

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

Replaced Part or Performed Procedure	Necessary Procedure	Effect/Inoperative Function when Necessary Procedure not Performed	Link
1: w/ Smart Key System 2: w/ Steering Lock Function *3: If matchmarks were not placed when removing parts related to steering operation, perform end position initial setting.
Power steering ECU assembly	for TMC Made (for G16E-GTS) Update ECU security key	Vehicle Control History (RoB) are stored
	for TMC Made (for G16E-GTS) ECU configuration	Vehicle Control History (RoB) are stored EPS warning light illuminates
	for TMC Made (for G16E-GTS) Perform power steering ECU initial setting (torque sensor zero point calibration and assist map writing)	Vehicle Control History (RoB) are stored EPS warning light illuminates
	for TMMMS Made Perform power steering ECU initial setting (torque sensor zero point calibration and assist map writing)	Vehicle Control History (RoB) are stored Steering effort different between turning steering wheel left and right EPS warning light illuminates
	for TMC Made (except G16E-GTS) Update ECU security key	Vehicle Control History (RoB) are stored
	for TMC Made (except G16E-GTS) ECU configuration	Vehicle Control History (RoB) are stored EPS warning light illuminates
	for TMC Made (except G16E-GTS) Perform power steering ECU initial setting (assist map writing)	Vehicle Control History (RoB) are stored EPS warning light illuminates
	for TMC Made (except G16E-GTS) End position initial setting	-
Electric power steering column sub-assembly	for TMC Made (for G16E-GTS) Perform power steering ECU initial setting (torque sensor zero point calibration and assist map writing)	Vehicle Control History (RoB) are stored EPS warning light illuminates
	for TMMMS Made Perform power steering ECU initial setting (torque sensor zero point calibration and assist map writing)	Vehicle Control History (RoB) are stored Steering effort different between turning steering wheel left and right EPS warning light illuminates
	for TMC Made (except G16E-GTS) Perform power steering ECU initial setting (assist map writing)	Vehicle Control History (RoB) are stored EPS warning light illuminates
	for TMC Made (except G16E-GTS) End position initial setting	-
No. 2 steering intermediate shaft assembly*3	for TMC Made (except G16E-GTS) End position initial setting	-
Steering lock ECU (steering lock actuator or upper bracket assembly)12	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*2	for TMC Made for TMMMS Made

CAUTION / NOTICE / HINT

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 (for HV Model)

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

Learning completes when vehicle is driven (for Gasoline Model)

Effect/Inoperative Function when Necessary Procedure not Performed	Necessary Procedures	Link
1: for GR Model 2: except GR Model
Front Camera System (for TMC Made)	Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 seconds or more.1 Drive the vehicle straight ahead at 15 km/h (9 mph) or more for 1 second or more.2
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)

Learning completes when vehicle is operated normally (for Gasoline Model)

Effect/Inoperative Function when Necessary Procedure not Performed	Necessary Procedures	Link
*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.

NOTICE:

for HV Model

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.
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))

for Gasoline Model

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.
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))

PROCEDURE

1. PRECAUTION

Click here

2. ALIGN FRONT WHEELS FACING STRAIGHT AHEAD

3. REMOVE HORN BUTTON ASSEMBLY

for G16E-GTS: Click here

except G16E-GTS: Click here

4. REMOVE STEERING WHEEL ASSEMBLY

for G16E-GTS: Click here

except G16E-GTS: Click here

5. REMOVE LOWER STEERING COLUMN COVER SUB-ASSEMBLY

NOTICE:

Removing the lower steering column cover sub-assembly in the incorrect order will cause the parts to break.

(a) Release the tilt and telescopic lever and fully extend and lower the steering column assembly.

(b) Lock the tilt and telescopic lever.

	Push Area
	Push in this direction

(d) While pressing the push area shown in the illustration to disengage the 2 claws, slightly lower the lower steering column cover sub-assembly.

6. REMOVE UPPER STEERING COLUMN COVER

(a) Disengage the claw and separate the upper steering column cover.

Separate in this direction

(b) Disengage the 2 claws and 4 clips to remove the upper steering column cover.

7. REMOVE TRANSPONDER KEY COIL (w/o Smart Key System)

(a) Disconnect the connector.

(b) Disengage the 2 claws and remove the transponder key coil.

8. REMOVE TURN SIGNAL SWITCH ASSEMBLY WITH SPIRAL CABLE SUB-ASSEMBLY

NOTICE:

Do not remove/install the spiral cable with sensor sub-assembly with the auxiliary battery connected and the ignition switch (for Gasoline Model) or power switch (for HV Model) on (IG).
Do not rotate the spiral cable with sensor sub-assembly without the steering wheel assembly installed, with the auxiliary battery connected and the ignition switch (for Gasoline Model) or power switch (for HV Model) on (IG).
Ensure that the steering wheel assembly is installed and aligned straight when inspecting the steering sensor.

(a) Disconnect each connector from the turn signal switch assembly with spiral cable sub-assembly.

(b) Using pliers, expand the clamp.

Clamp

(c) While holding the clamp expanded, raise the claw using a screwdriver to disengage it, and then remove the turn signal switch assembly with spiral cable sub-assembly from the steering column assembly.

9. REMOVE LOWER NO. 1 INSTRUMENT PANEL AIRBAG ASSEMBLY

Click here

10. REMOVE FRONT NO. 1 CONSOLE BOX INSERT

Click here

11. REMOVE FRONT CONSOLE UPPER PANEL GARNISH

Click here

12. REMOVE NO. 1 AIR DUCT

(a) Remove the 2 bolts.

*a	View A
	Front

(b) Disengage the 3 claws to remove the No. 1 air duct.

NOTICE:

Be careful not to deform or damage the lower heater case of the air conditioner unit assembly when removing the No. 1 air duct.

13. REMOVE COLUMN HOLE COVER SILENCER SHEET

(a) Disengage the claw and open the column hole cover silencer sheet.

Open in this direction

(b) Disengage the 2 claws to remove the column hole cover silencer sheet.

Place Hand Here

14. SEPARATE NO. 2 STEERING INTERMEDIATE SHAFT ASSEMBLY

(a) Put matchmarks on the No. 2 steering intermediate shaft assembly and steering gear assembly.

*a	Matchmark
	Separate in this direction

(b) Remove the bolt.

15. REMOVE NO. 2 STEERING INTERMEDIATE SHAFT ASSEMBLY

(a) Put matchmarks on the No. 2 steering intermediate shaft assembly and steering column assembly.

*a	Matchmark
	Remove in this direction

(b) Remove the bolt.

16. REMOVE STOP LIGHT SWITCH ASSEMBLY

Click here

17. REMOVE STEERING COLUMN ASSEMBLY

(a) Disconnect each connector and disengage each wire harness clamp from the steering column assembly.

(b) Remove the bolt, 2 nuts and steering column assembly.

REMOVAL

CAUTION / NOTICE / HINT

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

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

for TMC Made (for G16E-GTS)

for TMC Made (for G16E-GTS)

for TMC Made (for G16E-GTS)

for TMMMS Made

for TMC Made (except G16E-GTS)

for TMC Made (except G16E-GTS)

for TMC Made (except G16E-GTS)

for TMC Made (except G16E-GTS)

for TMC Made (for G16E-GTS)

for TMMMS Made

for TMC Made (except G16E-GTS)

for TMC Made (except G16E-GTS)

for TMC Made (except G16E-GTS)

CAUTION / NOTICE / HINT

Learning completes when vehicle is driven (for HV Model)

Learning completes when vehicle is driven (for Gasoline Model)

Learning completes when vehicle is operated normally (for Gasoline Model)

Power Door Lock Control System

for HV Model

for Gasoline Model

PROCEDURE