Dispose of Horn Button Assy (Off-Vehicle)
DISPOSALHINT: When scrapping a vehicle equipped with the SRS or disposing of the horn button assembly, 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.
CAUTION:
- Never dispose of a horn button assembly that has 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 (33 ft) away from the horn button assembly.
- The horn button 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 horn button assembly with a deployed airbag.
- Do not apply water, etc. to a horn button assembly with a deployed airbag.
- Always wash your hands with water after completing the operation.
DISPOSE OF HORN BUTTON ASSEMBLY (WHEN NOT INSTALLED IN VEHICLE)
NOTE:
- When disposing of the horn button assembly, never use the customer's vehicle to deploy the airbag.
- Be sure to follow the procedure detailed below when deploying the airbag.
HINT: Prepare a battery as the power source to deploy the airbag.
a. Check the function of the SST. (see step 1-(a)).
b. Remove the horn button assembly.
CAUTION:
- When removing the horn button assembly, work must be started 90 seconds after the ignition switch is turned to the "LOCK" position and the negative (-) terminal cable is disconnected from the battery.
- When storing the horn button assembly, keep the upper surface of the airbag deployment side facing upward.
c. Using a service-purpose wire harness for the vehicle, tie down the horn button assembly to the disc wheel.
Wire harness: Stripped wire harness section 1.25 sq.mm or more (0.0019 in.2 or more)
CAUTION: If the wire harness is too thin or an alternative object is used to tie down the horn button assembly, it may be snapped by the shock when the airbag is deployed. This is highly dangerous. Always use a wire harness for vehicle use with an area of at least 1.25 sq.mm (0.0019 in.2).
HINT: To calculate the area of the stripped wire harness section:
Area = 3.14 x sq.(Diameter) divided by 4
1. Install the 2 bolts with washers into the 2 bolt holes on the horn button assembly.
Bolt:
L: 35.0 mm (1.378 in.)
M: 6.0 mm (0.236 in.)
Pitch: 1.0 mm (0.039 in.)
NOTE:
- Tighten the bolts by hand until they become difficult to turn.
- Do not tighten the bolts excessively.
2. After connecting the SST below to each other, connect them to the horn button assembly.
SST 09082-00802 (09082-10801, 09082-30801)
3. Using 3 wire harnesses, wind wire harness at least 2 times each around the bolts installed on the left and right sides of the horn button assembly.
CAUTION: Make sure that the wire harness is tight. If there is slack in wire harness, the horn button assembly may become loose due to the shock when the airbag is deployed. This is highly dangerous.
4. Face the upper surface of the horn button assembly upward. Separately tie the left and right sides of the horn button assembly to the disc wheel through the hub nut holes. Position the SST connector so that it hangs downward through a hub hole in the disc wheel.
CAUTION:
- Make sure that the wire harness is tight. If there is slack in wire harness, the horn button assembly may become loose due to the shock when the airbag is deployed. This is highly dangerous.
- Always tie down the horn button assembly with the pad side facing upward. It is highly dangerous if the horn button assembly is tied down with the metal surface facing upward as the wire harness will be cut by the shock caused by the airbag deployment and the horn button assembly will be thrown into the air.
NOTE: The disc wheel will be marked by the airbag deployment, so use an extra disc wheel.
d. Install the SST.
CAUTION: Place the disc wheel on the level ground.
1. Connect the SST connector.
SST 09082-00700
NOTE: 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 the SST at least 10 m (33 ft) away from the horn button assembly tied down to the disc wheel.
e. Cover the horn button assembly with a cardboard box or tires.
1. Covering method using a cardboard box:
Cover the horn button assembly with the cardboard box and place the weights on the cardboard box in 4 places with at least 190 N (19 kg, 43 lb).
Size of cardboard box:
Must exceed the following dimensions:
X = 460 mm (18.11 in.)
Y = 650 mm (25.59 in.)
NOTE:
- When dimension Y of the cardboard box exceeds the diameter of the disc wheel with tire which the horn button assembly is tied to, X should be the following size.
X = 460 mm (18.11 in.) + width of tire
- If the cardboard box is smaller than the specified size, the cardboard box will be broken by the shock from the airbag deployment.
2. Covering method using tires:
Place at least 3 tires without disc wheels on top of the tire with disc wheel which the horn button assembly is tied to.
Tire size: Must exceed the following dimensions
Width: 185 mm (7.28 in.)
Inner diameter: 360 mm (14.17 in.)
CAUTION: Do not use tires with disc wheels.
NOTE:
- The tires may be marked by the airbag deployment, so use an extra tires.
- Do not place the SST connector under the tire because it could be damaged.
3. Tie the tires together with 2 wire harnesses.
CAUTION: Make sure that the wire harness is tight. It is highly dangerous when looseness in the wire harness results in the tires coming free due to the shock when the airbag is deployed.
f. Deploy the airbag.
1. Connect the red clip of the SST to the battery positive (+) terminal and the black clip of the SST to the battery negative (-) terminal.
2. Check that no one is within a 10 m (33 ft) radius of the disc wheel which the horn button assembly is tied to.
3. Press the SST activation switch and deploy the air-bag.
CAUTION: When deploying the airbag, make sure that no one is near the tire.
HINT: The airbag is deployed as the LED of the SST activation switch comes on.
g. Dispose of the horn button assembly.
CAUTION:
- The horn button 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 horn button assembly with a deployed airbag.
- Do not apply water, etc. to a horn button assembly with a deployed airbag.
- Always wash your hands with water after completing the operation.
1. Remove the horn button assembly from the disc wheel.
2. Place the horn button assembly in a plastic bag, tie it tightly and dispose of it as other general parts disposal.