Toyota Avalon (XX50): Front Seat Side Airbag Assembly

Components

COMPONENTS

ILLUSTRATION

*1	FRONT SEAT AIRBAG ASSEMBLY	*2	FRONT SEAT CUSHION SHIELD
*3	FRONT SEAT FRONT CUSHION SHIELD	*4	FRONT SEAT HEADREST SUPPORT
*5	FRONT SEAT INNER CUSHION SHIELD	*6	SEPARATE TYPE FRONT SEATBACK ASSEMBLY
*7	SEPARATE TYPE FRONT SEATBACK COVER WITH PAD	*8	FRONT SEATBACK FRAME SUB-ASSEMBLY
	Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/stopping": N*m (kgf*cm, ft.*lbf)		N*m (kgf*cm, ft.*lbf): Specified torque
●	Non-reusable part	-	-

Disposal

DISPOSAL

CAUTION / NOTICE / HINT

CAUTION:

Before performing pre-disposal deployment of any SRS part, review and closely follow all applicable environmental and hazardous material regulations. Pre-disposal deployment may be considered hazardous material treatment.

PROCEDURE

1. PRECAUTION

CAUTION:

• An airbag or pretensioner may be accidentally deployed by static electricity. To prevent this, be sure to touch a metal surface with your bare hands to discharge static electricity before performing this procedure.
• Never dispose of a front seat airbag assembly with an undeployed airbag.
• The airbag produces an exploding sound when it is deployed, so perform the operation outdoors where it will not disturb nearby residents.
• When deploying the airbag, always use the specified SST (SRS airbag deployment tool). Perform the operation in a place away from electrical noise.
• When deploying the airbag, perform the operation at least 10 m (32.8 ft.) away from the front seat airbag assembly.
• The front seat airbag assembly becomes extremely hot when the airbag is deployed, so do not touch it for at least 30 minutes after deployment.
• Use gloves and safety glasses when handling a front seat airbag assembly with a deployed airbag.
• Do not apply water, etc. to a front seat airbag assembly with a deployed airbag.
• Always wash your hands with water after completing the operation.

HINT:

When scrapping a vehicle equipped with an SRS or disposing of the front seat airbag assembly, be sure to deploy the airbag first in accordance with the following procedure. If any abnormality occurs with the airbag deployment, contact the Service Department of TOYOTA MOTOR SALES, U.S.A., INC.

2. DISPOSE OF FRONT SEAT AIRBAG ASSEMBLY (When Installed to Vehicle)

NOTICE:

• When disposing of a front seat airbag assembly, never use the customer's vehicle to deploy the airbag.
• Be sure to perform the following procedure when deploying the airbag.

HINT:

Prepare a 12 V battery as the power source to deploy the airbag.

(a) Check the function of SST. Click here SST: 09082-00700

(b) Refer to Precaution.

for Gasoline Model: Click here

for HV Model: Click here

(c) Disconnect the cable 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.

(d) Disconnect the front seat airbag assembly connector under the front seat assembly.

NOTICE:

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

(1) Push down the white housing lock and slide the yellow CPA. (At this time, the connector cannot be disconnected yet.)

*a	White Housing Lock
*b	Yellow CPA
	Slide in this Direction

(2) Push down the white housing lock again and disconnect the connector.

NOTICE:

Do not push down the part (A) shown in the illustration when disconnecting the connector.

(e) Install SST.

CAUTION:

Check that there is no looseness in the front seat assembly.

(1) After connecting the following SST to each other, connect them to the front seat airbag assembly. SST: 09082-00700 SST: 09082-00820 NOTICE: To avoid damaging the SST connector or wire harness, do not lock the secondary lock of the twin lock.

(2) Move SST at least 10 m (32.8 ft.) away from the front side window of the vehicle.

*a 12 V Battery *b 10 m (32.8 ft.) or more

(3) Maintaining sufficient clearance for the SST wire harness in the front side window, close all doors and windows of the vehicle.

NOTICE:

Take care not to damage the SST wire harness.

(4) Connect the red clip of SST to the positive (+) battery terminal and the black clip of SST to the negative (-) battery terminal.

(f) Deploy the airbag.

(1) Check that no one is inside the vehicle or within a 10 m (32.8 ft.) radius of the vehicle.

(2) Press the SST activation switch to deploy the airbag.

CAUTION:

• Before deployment, make sure that no one is inside or near the vehicle.
• The front seat airbag assembly becomes extremely hot when the airbag is deployed, so do not touch it for at least 30 minutes after deployment.
• Use gloves and safety glasses when handling a front seat airbag assembly with a deployed airbag.
• Do not apply water, etc. to a front seat airbag assembly with a deployed airbag.
• Always wash your hands with water after completing the operation.

HINT:

The airbag is deployed as the LED of the SST activation switch comes on.

3. DISPOSE OF FRONT SEAT AIRBAG ASSEMBLY (When not Installed to Vehicle)

NOTICE:

Be sure to perform the following procedure when deploying the airbag.

HINT:

Prepare a 12 V battery as the power source to deploy the airbag.

(a) Check the function of SST. Click here SST: 09082-00700

(b) Remove the front seat airbag assembly.

Click here

CAUTION:

• Before removing the front seat assembly, wait at least 90 seconds after turning the engine switch (for Gasoline Model) or power switch (for HV Model) off and disconnecting the cable from the negative (-) auxiliary battery terminal.
• When storing the front seat airbag assembly, keep the airbag deployment side facing upward.

  Deployment Side

(c) Using braided wire, tie down the front seat airbag assembly to an unneeded tire.

Wire:

Stripped Wire Cross Sectional Area

1.25 mm2 (0.0019 in.2) or more

CAUTION:

If the wire is too thin or an alternative object is used to tie down the front seat airbag assembly, it may snap when the airbag is deployed. Always use a wire for vehicle use with a cross sectional area of at least 1.25 mm2 (0.0019 in.2).

HINT:

To calculate the cross sectional area of the stripped wire:

Cross sectional area = 3.14 x (Diameter)2 / 4

(1) Install the 2 nuts to the front seat airbag assembly.

(2) Wind 2 or more wires around the stud bolts of the front seat airbag assembly as shown in the illustration.

(3) Position the front seat airbag assembly inside the tire with the airbag deployment side facing inward.

Minimum Tire Size:

Width

185 mm (7.28 in.)

Inner Diameter

360 mm (1.18 ft.)

CAUTION:

• Make sure that the wires are tight. If there is slack in the wires, the front seat airbag assembly may break loose when the airbag is deployed.
• Always tie down the front seat airbag assembly with the airbag deployment side facing inside the tire.

  Deployment Side

NOTICE:

The tire may be damaged by the airbag deployment, so use an unneeded tire.

(d) Install SST.

(1) Connect the SST connector to the front seat airbag assembly connector. SST: 09082-00820

(e) Place the tires.

(1) Place at least 2 tires under the tire to which the front seat airbag assembly is tied. Minimum Tire Size: Width 185 mm (7.28 in.) Inner Diameter 360 mm (1.18 ft.) NOTICE: Do not place the SST connector under the tire because it could be damaged.

*a Tires (2 or more) *b Inner Diameter *c Width

(2) Place at least 2 tires onto the tire to which the front seat airbag assembly is tied. The top tire should have a wheel installed.

NOTICE:

The wheel and tires may be damaged by the airbag deployment, so use an unneeded wheel and tires.

(3) Tie the tires together with 2 wires. CAUTION: Make sure that the wires are tight. Looseness in the wires will result in the tires breaking loose when the airbag is deployed.

(f) Install SST.

(1) Connect the SST connector. SST: 09082-00700 NOTICE: To avoid damaging the SST connector or wire harness, do not lock the secondary lock of the twin lock. Also, secure some slack for the SST wire harness inside the tire.

*1 Front Seat Airbag Assembly *a 12 V Battery *b 10 m (32.8 ft.) or more

(2) Move SST at least 10 m (32.8 ft.) away from the airbag tied down to the tire.

(g) Deploy the airbag.

(1) Connect the red clip of SST to the positive (+) battery terminal and the black clip of SST to the negative (-) battery terminal.

(2) Check that no one is within a 10 m (32.8 ft.) radius of the tire to which the front seat airbag assembly is tied.

(3) Press the SST activation switch to deploy the airbag.

CAUTION:

Before deployment, make sure that no one is near the airbag.

HINT:

The airbag is deployed as the LED of the SST activation switch comes on.

(h) Dispose of the front seat airbag assembly.

CAUTION:

• The front seat airbag assembly becomes extremely hot when the airbag is deployed, so do not touch it for at least 30 minutes after deployment.
• Use gloves and safety glasses when handling a front seat airbag assembly with a deployed airbag.
• Do not apply water, etc. to a front seat airbag assembly with a deployed airbag.
• Always wash your hands with water after completing the operation.

(1) Remove the front seat airbag assembly from the tire.

(2) Place the front seat airbag assembly in a plastic bag, tie it tightly, and dispose of it according to local regulations.

Installation

INSTALLATION

CAUTION / NOTICE / HINT

HINT:

• Use the same procedure for the RH side and LH side.
• The following procedure is for the LH side.

PROCEDURE

1. INSTALL FRONT SEAT AIRBAG ASSEMBLY

(a) Install the front seat airbag assembly with 2 new nuts.

Torque:

8.0 N·m {82 kgf·cm, 71 in·lbf}

NOTICE:

• Do not reuse the nuts.
• Make sure that the front seatback frame sub-assembly is not deformed. If it is deformed, replace it with a new one.

(b) Engage the clamp.

2. INSTALL SEPARATE TYPE FRONT SEATBACK COVER WITH PAD

Click here

3. INSTALL FRONT SEAT HEADREST SUPPORT

Click here

4. INSTALL SEPARATE TYPE FRONT SEATBACK ASSEMBLY

Click here

5. INSTALL FRONT SEAT INNER CUSHION SHIELD

Click here

6. INSTALL FRONT SEAT CUSHION SHIELD

Click here

7. INSTALL FRONT SEAT FRONT CUSHION SHIELD

Click here

8. CONNECT SEPARATE TYPE FRONT SEATBACK COVER

Click here

9. INSTALL FRONT SEAT ASSEMBLY

Click here

10. PERFORM DIAGNOSTIC SYSTEM CHECK

for Gasoline Model: Click here

for HV Model: Click here

On-vehicle Inspection

ON-VEHICLE INSPECTION

CAUTION / NOTICE / HINT

CAUTION:

Be sure to correctly follow the removal and installation procedures for the front seat airbag assemblies.

PROCEDURE

1. INSPECT FRONT SEAT AIRBAG ASSEMBLY (for Vehicle not Involved in Collision)

(a) Perform a diagnostic system check.

for Gasoline Model: Click here

for HV Model: Click here

(b) Visually check for defects with the front seat airbag assemblies installed to the vehicle.

HINT:

The defects are as follows:

• Scratches, broken or frayed threads on the surface of the front seatback assembly around the front seat airbag assemblies
• Small cracks in the front seatback assembly around the front seat airbag assemblies
• Significant discoloration on the front seatback assembly around the front seat airbag assemblies

OK:

No defects are found.

If any defects are found, replace the separate type front seatback pad or separate type front seatback cover with a new one.

2. INSPECT FRONT SEAT AIRBAG ASSEMBLY (for Vehicle Involved in Collision and Airbag not Deployed)

(a) Perform a diagnostic system check.

for Gasoline Model: Click here

for HV Model: Click here

(b) Visually check for defects with the front seat airbag assemblies removed from the vehicle.

HINT:

The defects are as follows:

• Scratches, broken or frayed threads on the surface of the base fabric of the front seat airbag assemblies
• Marks from being dropped
• Deformation of the installation surface of the front seat airbag assemblies
• Cracks or other damage to the wire harness or connector

OK:

No defects are found.

If any defects are found, replace the front seat airbag assembly with a new one.

Removal

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 front seat airbag assembly removal/installation are shown below.

• Be sure to read Precaution thoroughly before servicing.

  for Gasoline Model: Click here

  for HV Model: Click here

• Wear protective gloves. Sharp areas on the parts may injure your hands.

NOTICE:

If a front seat airbag assembly has been deployed, replace the front seat airbag assembly, front seatback frame sub-assembly, separate type front seatback pad and separate type front seatback cover with the necessary parts in accordance with the extent of the collision damage.

Click here

HINT:

• Use the same procedure for the RH side and LH side.
• The following procedure is for the LH side.

PROCEDURE

1. REMOVE FRONT SEAT ASSEMBLY

Click here

2. DISCONNECT SEPARATE TYPE FRONT SEATBACK COVER

Click here

3. REMOVE FRONT SEAT FRONT CUSHION SHIELD

Click here

4. REMOVE FRONT SEAT CUSHION SHIELD

Click here

5. REMOVE FRONT SEAT INNER CUSHION SHIELD

Click here

6. REMOVE SEPARATE TYPE FRONT SEATBACK ASSEMBLY

Click here

7. REMOVE FRONT SEAT HEADREST SUPPORT

Click here

8. REMOVE SEPARATE TYPE FRONT SEATBACK COVER WITH PAD

Click here

9. REMOVE FRONT SEAT AIRBAG ASSEMBLY

CAUTION:

When storing the front seat airbag assembly, keep the airbag deployment side facing upward.

Deployment Side

(a) Disengage the clamp.

(b) Remove the 2 nuts and front seat airbag assembly.

NOTICE:

• Do not reuse the nuts.
• Make sure that the front seatback frame sub-assembly is not deformed. If it is deformed, replace it with a new one.