SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: REMOVAL; 2022 MY Avalon Avalon HV [08/2021

Last Modified: 08-21-2023	6.11:8.1.0	Doc ID: RM100000001YLHU
Model Year Start: 2022	Model: Avalon HV	Prod Date Range: [08/2021 - ]
Title: SUPPLEMENTAL RESTRAINT SYSTEMS: CENTER AIRBAG SENSOR ASSEMBLY: REMOVAL; 2022 MY Avalon Avalon HV [08/2021 - ]

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 airbag ECU assembly removal/installation are shown below.

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
*: When performing learning using the Techstream. Click here
Replacement of the airbag ECU assembly	Reset memory	Dynamic Torque Control AWD System
Replacement of the airbag ECU assembly	Perform "Reset Memory" Perform acceleration sensor zero point calibration and system information memorization	VSC is disabled or malfunctions DTCs are output Slip indicator light illuminates ABS warning light illuminates
Removal/installation of the front passenger seat	Zero point calibration (Occupant Classification System)	Occupant Classification System Passenger airbag ON/OFF indicator Airbag System (Front passenger side) Seat Belt Warning System (Front passenger)
Disconnect cable from negative auxiliary battery terminal	Perform steering sensor zero point calibration	Lane Tracing Assist System
		Pre-collision System
		Intelligent Clearance Sonar System*
		Lighting System (for Gasoline Model with Cornering Light)
	Memorize steering angle neutral point	Parking Assist Monitor System
	Memorize steering angle neutral point	Panoramic View Monitor System

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
*: When performing learning using the Techstream. Click here
Replacement of the airbag ECU assembly	Clear zero point calibration data Perform yaw rate and acceleration sensor zero point calibration	DTCs are stored ABS warning light illuminates Brake warning light / yellow (minor malfunction) illuminates Slip indicator light illuminates VSC disabled or malfunctions
Removal/installation of the front passenger seat	Zero point calibration (Occupant classification system)	Occupant classification system Passenger airbag ON/OFF indicator Airbag system (Front passenger side) Seat belt warning system (Front passenger)
Disconnect cable from negative auxiliary battery terminal	Perform steering sensor zero point calibration	Lane Tracing Assist System
		Pre-collision System
		Intelligent Clearance Sonar System*
		Lighting System (for HV Model with Cornering Light)
	Memorize steering angle neutral point	Parking Assist Monitor System
	Memorize steering angle neutral point	Panoramic View Monitor System

PROCEDURE

1. PRECAUTION

CAUTION:

Be sure to read Precaution thoroughly before servicing.

for Gasoline Model: Click here

for HV Model: Click here

NOTICE:

After turning the engine 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.

Click here

2. REMOVE FRONT SEAT ASSEMBLY

(a) Remove the front seat assembly LH and front seat assembly RH.

Click here

3. REMOVE CONSOLE ASSEMBLY

Click here

4. REMOVE SPARE WHEEL COVER ASSEMBLY (for Gasoline Model with Seat Heater System)

Click here

5. REMOVE LUGGAGE COMPARTMENT INNER TRIM PAD (for Gasoline Model with Seat Heater System)

Click here

6. DISCONNECT REAR CENTER SEAT OUTER BELT ASSEMBLY (for Gasoline Model)

Click here

7. REMOVE REAR SEAT CUSHION ASSEMBLY (for Gasoline Model)

Click here

8. REMOVE REAR SEAT CUSHION LOCK HOOK (for Gasoline Model)

Click here

9. REMOVE FRONT DOOR SCUFF PLATE LH

Click here

10. REMOVE COWL SIDE TRIM SUB-ASSEMBLY LH

Click here

11. DISCONNECT FRONT DOOR OPENING TRIM WEATHERSTRIP LH

HINT:

Disconnect the front door opening trim weatherstrip LH to the extent that allows the removal of the center pillar lower garnish LH.

12. REMOVE REAR DOOR SCUFF PLATE LH (for Gasoline Model)

Click here

13. REMOVE REAR DOOR SCUFF PLATE LH (for HV Model)

Click here

14. DISCONNECT REAR DOOR OPENING TRIM WEATHERSTRIP LH

HINT:

Disconnect the rear door opening trim weatherstrip LH to the extent that allows the removal of the center pillar lower garnish LH.

15. REMOVE CENTER PILLAR LOWER GARNISH LH

Click here

16. REMOVE NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY

Click here

17. REMOVE FRONT DOOR SCUFF PLATE RH

HINT:

Use the same procedure as for the LH side.

Click here

18. REMOVE COWL SIDE TRIM SUB-ASSEMBLY RH

HINT:

Use the same procedure as for the LH side.

Click here

19. DISCONNECT FRONT DOOR OPENING TRIM WEATHERSTRIP RH

HINT:

Disconnect the front door opening trim weatherstrip RH to the extent that allows the removal of the center pillar lower garnish RH.

20. REMOVE REAR DOOR SCUFF PLATE RH (for Gasoline Model)

HINT:

Use the same procedure as for the LH side.

Click here

21. REMOVE REAR DOOR SCUFF PLATE RH (for HV Model)

HINT:

Use the same procedure as for the LH side.

Click here

22. DISCONNECT REAR DOOR OPENING TRIM WEATHERSTRIP RH

HINT:

Disconnect the rear door opening trim weatherstrip RH to the extent that allows the removal of the center pillar lower garnish RH.

23. REMOVE CENTER PILLAR LOWER GARNISH RH

HINT:

Use the same procedure as for the LH side.

Click here

24. REMOVE NO. 2 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY

Click here

25. REMOVE ACCELERATOR PEDAL PAD

for 2GR-FKS: Click here

for A25A-FXS: Click here

for A25A-FKS: Click here

26. REMOVE ACCELERATOR PEDAL

for 2GR-FKS: Click here

for A25A-FXS: Click here

for A25A-FKS: Click here

27. DISCONNECT FRONT FLOOR CARPET ASSEMBLY

(a) Remove the front floor carpet clip.

(b) Remove the 2 front floor carpet clips.

(d) Remove the front floor carpet clip.

(e) Remove the 2 front floor carpet clips.

(f) Disengage the 2 guides and turn back the front floor carpet assembly as shown in the illustration.

28. REMOVE NO. 1 CONSOLE BOX DUCT

(a) Remove the clip.

Remove in this Direction

(b) Remove the No. 1 console box duct as shown in the illustration.

29. REMOVE AIRBAG ECU ASSEMBLY

(a) Check that the engine 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.

(c) Push down the part (A) in the direction indicated by the arrow (1) to release the lock, and then move the lock lever in the direction indicated by the arrow (2) shown in the illustration to disconnect the connectors.

NOTICE:

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

*a	Lock Lever
	Release the lock (1)
	Disconnect the connector (2)

(d) Remove the 3 bolts and airbag ECU assembly.