SUPPLEMENTAL RESTRAINT SYSTEMS: STEERING PAD (except G16E-GTS): REMOVAL; 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV [03/2019

Last Modified: 05-13-2024	6.11:8.1.0	Doc ID: RM100000001HSSI
Model Year Start: 2020	Model: Corolla Hatchback	Prod Date Range: [03/2019 - 09/2022]
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: STEERING PAD (except G16E-GTS): REMOVAL; 2020 - 2022 MY Corolla Corolla Hatchback Corolla HV [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 horn button 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	Link
Disconnect cable from negative auxiliary battery terminal	Perform steering sensor zero point calibration	Lane Control System
Disconnect cable from negative auxiliary battery terminal	Perform steering sensor zero point calibration	Pre-collision System

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
*1: for Hatchback
Disconnect cable from negative auxiliary battery terminal	Perform steering sensor zero point calibration	Lane Control System
		Pre-collision System
		Lighting System (w/ AFS)(EXT)
	Initialize back door lock*1	Power Door Lock Control System

NOTICE:

for HV Model:

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))

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 85 seconds before disconnecting the cable from the negative (-) battery terminal. (for Navigation System and Audio and Visual System (for Gasoline Model))

PROCEDURE

1. PRECAUTION

CAUTION:

Be sure to read Precaution thoroughly before servicing.

for HV Model: Click here

for TMC Made Gasoline Model: Click here

for TMMMS Made: Click here

NOTICE:

After turning the ignition switch (for Gasoline Model) or power switch (for HV Model) off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.

2. DISCONNECT CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL

for M20A-FKS: Click here

for 2ZR-FAE: Click here

for 2ZR-FXE: Click here

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

NOTICE:

When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

Click here

3. REMOVE HORN BUTTON ASSEMBLY

CAUTION:

When storing the horn button assembly, keep the airbag deployment side facing upward.

Deployment Side

(a) Check that the ignition switch (for Gasoline Model) or power switch (for HV Model) is off.

(b) Check that the cable is disconnected from the negative (-) auxiliary battery terminal.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

*a	Torsion Spring
	Push in this Direction

(1) Using a screwdriver, push in the 3 torsion springs to disengage the 3 pins as shown in the illustration.

NOTICE:

Lightly hold the horn button assembly so that it does not fall.

HINT:

Insert the screwdriver from each service hole.

(d) for TMMMS Made:

*a	Torsion Spring
	Push in this Direction

(1) Using a screwdriver, push in the 3 torsion springs to disengage the 3 pins as shown in the illustration.

NOTICE:

Lightly hold the horn button assembly so that it does not fall.

HINT:

Insert the screwdriver from each service hole.

(e) Pull out the horn button assembly from the steering wheel assembly and hold the horn button assembly with one hand.

NOTICE:

When separating the horn button assembly, do not pull the airbag wire harness.

(f) for TMC Made:

(1) Disconnect the horn connector from the horn button assembly.

*a	Airbag Connector
*b	Horn Connector
*c	Airbag Connector Locking Button
*d	Protective Tape
*e	Wire Harness Clamp
	Release in this Direction
	Remove in this Direction

(2) Using a screwdriver with its tip wrapped with protective tape, release the 2 airbag connector locking buttons.

(3) Disconnect the 2 airbag connectors.

NOTICE:

When disconnecting any airbag connector, take care not to damage the airbag wire harness.

(4) Using a screwdriver with its tip wrapped with protective tape, release the lock and remove the wire harness clamp to remove the horn button assembly.

(g) for TMMMS Made:

(1) Disconnect the horn connector from the horn button assembly.

*a	Airbag Connector
*b	Horn Connector
*c	Airbag Connector Locking Button
*d	Protective Tape
*e	Wire Harness Clamp
	Release in this Direction
	Remove in this Direction

(2) Using a screwdriver with its tip wrapped with protective tape, release the 2 airbag connector locking buttons.

(3) Disconnect the 2 airbag connectors.

NOTICE:

When disconnecting any airbag connector, take care not to damage the airbag wire harness.

(4) Using a screwdriver with its tip wrapped with protective tape, release the lock and remove the wire harness clamp to remove the horn button assembly.