Toyota Tundra Service Manual: 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 activated 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 steering pad with an undeployed airbag.
• The airbag produces an exploding sound when it is deployed, so perform the operation outdoors and where it will not create a nuisance to 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 steering pad.
• The steering pad 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 steering pad with a deployed airbag.
• Do not apply water etc. to a steering pad with a deployed airbag.
• Always wash your hands with water after completing the operation.

HINT:

When scrapping a vehicle equipped with the SRS or disposing of the steering pad, be sure to deploy the airbag first in accordance with the procedure described below. If any abnormality occurs with the airbag deployment, contact the SERVICE DEPT. of TOYOTA MOTOR SALES, U.S.A., INC.

2. DISPOSE OF STEERING PAD (When Installed inVehicle)

NOTICE:

• When disposing of the steering pad, never use the customer's vehicle to deploy the airbag.
• Be sure to observe the following procedure when deploying the airbag.

HINT:

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

(a) Check the function of SST.

SST: 09082-00700

(1) Connect SST to the battery. Connect the red clip of SST to the positive (+) battery terminal and the black clip of SST to the negative (-) battery terminal. Text in Illustration *1 Battery

(2) Check the function of SST. Press the SST activation switch and check that the LED of the SST activation switch comes on. CAUTION: Do not connect the yellow SST connector to the airbag. If the LED comes on when the activation switch is not being pressed, SST is malfunctioning. Replace SST.

(3) Disconnect SST from the battery.

(b) Read the precaution (see page ).

(c) Disconnect the cable from the negative (-) battery terminal.

CAUTION:

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

(d) Remove the lower steering column cover. (1) While turning the steering wheel assembly to the right and left, remove the 2 screws and lower steering column cover.

(e) Disconnect the yellow airbag connector from the spiral cable. (1) Slide the slider to release the lock, and then disconnect the connector. Text in Illustration *1 Slider NOTICE: When disconnecting any airbag connector, take care not to damage the airbag wire harness.

(f) Install SST.

CAUTION:

Check that there is no looseness in the steering wheel assembly and steering pad.

(1) Connect the SST connector to the airbag connector of the spiral cable.

SST: 09082-00700

SST: 09082-00780

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. Text in Illustration *1 Battery *a 10 m or more

(3) While 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.

(g) 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 and deploy the airbag.

CAUTION:

• Before deployment, make sure that no one is near the vehicle.
• The steering pad 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 steering pad with a deployed airbag.
• Do not apply water etc. to a steering pad 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 STEERING PAD (When not Installed inVehicle)

CAUTION:

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

HINT:

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

(a) Check the function of SST (See previous step).

(b) Remove the steering pad (see page ).

CAUTION:

• Before removing the steering pad, wait at least 90 seconds after turning the ignition switch off and disconnecting the cable from the negative (-) battery terminal.
• When storing the steering pad, keep the airbag deployment side facing upward.

(c) Using a service-purpose wire harness for the vehicle, tie down the steering pad to an unneeded wheel.

Wire:

Cross-sectional area of stripped wire:

1.25 mm2 (0.0019 in.2) or more

CAUTION:

If the wire harness is too thin or an alternative object is used to tie down the steering pad, it may be snapped by the shock when the airbag is deployed. Always use a wire harness 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 section:

Area = 3.14 x (Diameter)2 / 4

(1) Install the 2 bolts with washers into the 2 bolt holes on the steering pad. Bolt: L 35.0 mm (1.38 in.) M 6.0 mm (0.236 in.) Pitch 1.0 mm (0.0393 in.) NOTICE: Tighten the bolts by hand until they become difficult to turn. Do not tighten the bolts excessively.

(2) Connect SST to the steering pad at the locations indicated by the arrows in the illustration. SST: 09082-00820

(3) Wind 3 wire harnesses at least 2 times each around the bolts installed on the left and right sides of the steering pad. Text in Illustration *a 2 times or more CAUTION: Tightly wind the wire harnesses around the bolts so that there is no slack. Make sure that the wire harnesses are tight. If there is slack in the wire harnesses, the steering pad may become loose due to the shock when the airbag is deployed.

(4) Face the airbag deployment side of the steering pad upward. Separately tie the left and right sides of the steering pad to a disc wheel through the hub nut holes. Position the SST connector so that it hangs downward through the hub hole of the disc wheel. CAUTION: Make sure that the wire harnesses are tight. If there is slack in the wire harnesses, the steering pad may break loose when the airbag is deployed. Always tie down the steering pad with the airbag deployment side facing upward. NOTICE: The tire and disc wheel may be damaged by the airbag deployment, so use an unneeded tire and disc wheel.

(d) Install SST.

CAUTION:

Place the disc wheel on level ground.

(1) Connect the SST connector.

SST: 09082-00700

NOTICE:

To avoid damaging the SST connector and wire harness, do not lock the secondary lock of the twin lock. Also, secure some slack for the SST wire harness inside the disc wheel.

(2) Move SST at least 10 m (32.8 ft.) away from the steering pad tied down to the disc wheel. Text in Illustration *1 Battery *2 Steering Pad *3 10 m or more

(e) Cover the steering pad (using a cardboard box). Text in Illustration *1 Weight *2 Steering Pad (1) Cover the steering pad with a cardboard box. (2) Place weights on the cardboard box in 4 places totaling at least 190 N (19 kg, 42.7 lb). Minimum cardboard box size: Must exceed the following dimensions X 460 mm (1.51 ft.) Y 650 mm (2.13 ft.) NOTICE: When dimension Y of the cardboard box exceeds the diameter of the disc wheel and tire to which the steering pad is tied, X should be the following size. X = 460 mm (1.51 ft.) + width of tire If a cardboard box smaller than the specified size is used, it may be broken by the shock from the airbag deployment.

(f) Cover the steering pad (using tires).

(1) Place at least 3 tires without disc wheels onto the disc wheel and tire to which the steering pad is tied.

(2) Place a disc wheel and tire on top.

Minimum tire size:

Must exceed the following dimensions

Width

185 mm (7.28 in.)

Inner diameter

360 mm (1.18 ft.)

CAUTION:

Do not use tires with disc wheels except for on the top and bottom.

NOTICE:

• The tires and disc wheel may be damaged by the airbag deployment, so use unneeded tires and disc wheels.
• Do not place the SST connector under the tire because it could be damaged.

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

(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. Text in Illustration *A Using a Cardboard Box *B Using Tires *1 Battery *2 Steering Pad *a 10 m or more (2) Check that no one is within a 10 m (32.8 ft.) radius of the disc wheel to which the steering pad is tied. (3) Press the SST activation switch and 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 steering pad.

CAUTION:

• The steering pad 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 steering pad with a deployed airbag.
• Do not apply water etc. to a steering pad with a deployed airbag.
• Always wash your hands with water after completing the operation.

(1) Remove the steering pad from the disc wheel.

(2) Place the steering pad in a plastic bag, tie it tightly and dispose of it according to local regulations.