Last Modified: 05-13-2024 6.11:8.1.0 Doc ID: RM1000000026LJ3
Model Year Start: 2023 Model: Corolla Hatchback Prod Date Range: [09/2022 - 11/2022]
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: STEERING PAD (except G16E-GTS): REMOVAL; 2023 MY Corolla Corolla Hatchback Corolla HV [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 horn button assembly removal/installation are shown below.

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.

Items for which learning is completed by driving the vehicle (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.

2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; ADVANCED DRIVER ASSISTANCE SYSTEM: FRONT CAMERA SYSTEM (for TMC Made): INITIALIZATION

Items for which learning is completed by driving the vehicle (for Gasoline 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.

2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; ADVANCED DRIVER ASSISTANCE SYSTEM: FRONT CAMERA SYSTEM (for TMC Made): INITIALIZATION

Pre-collision System (for TMMMS Made)

Drive the vehicle straight ahead at 35 km/h (22 mph) or more for 5 seconds or more.

2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; ADVANCED DRIVER ASSISTANCE SYSTEM: PRE-COLLISION SYSTEM (for TMMMS Made): INITIALIZATION

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.

2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; DOOR LOCK: POWER DOOR LOCK CONTROL SYSTEM (for TMC Made): INITIALIZATION

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

CAUTION:

Be sure to read Precaution thoroughly before servicing.

for TMC Made: Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMC Made): PRECAUTION

for TMMMS Made: Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMMMS Made): PRECAUTION

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 2023 MY Corolla Corolla Hatchback [09/2022 - 11/2022]; MAINTENANCE: M20A-FKS BATTERY: REMOVAL+

for 2ZR-FAE: Click here 2023 MY Corolla [09/2022 - 11/2022]; MAINTENANCE: 2ZR-FAE BATTERY: REMOVAL+

for 2ZR-FXE: Click here 2023 MY Corolla Corolla HV [09/2022 - 11/2022]; MAINTENANCE: 2ZR-FXE AUXILIARY BATTERY: REMOVAL+

CAUTION:

for TMC Made:

  • Wait at least 60 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

for TMMMS Made:

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

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:

for TMC Made:

  • Wait at least 60 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

for TMMMS Made:

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

(c) for TMC 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.

(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

Protective Tape

*b

Wire Harness Clamp

Release in this Direction

Remove in this Direction

(2) Disconnect the 2 airbag connectors.

NOTICE:

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

HINT:

Refer to How to Connect or Disconnect Airbag Connector.

Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMC Made): HOW TO CONNECT OR DISCONNECT AIRBAG CONNECTOR

(3) 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

Protective Tape

*b

Wire Harness Clamp

Release in this Direction

Remove in this Direction

(2) Disconnect the 2 airbag connectors.

NOTICE:

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

HINT:

Refer to How to Connect or Disconnect Airbag Connector.

Click here 2023 MY Corolla Corolla Hatchback Corolla HV GR Corolla [09/2022 - 11/2022]; SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM (for TMC Made): HOW TO CONNECT OR DISCONNECT AIRBAG CONNECTOR

(3) 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.