Dispose of Horn Button Assy (On-Vehicle)

DISPOSAL

HINT: 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 INSTALLED IN VEHICLE)

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




a. Check the function of the SST.
SST 09082-00700

CAUTION: When deploying the airbag, always use the specified SST: SRS Airbag Deployment Tool.




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

HINT: Do not connect the yellow connector of the SST which is to be connected with the supplemental restraint system.




2. Check the function of the SST.
Press the SST activation switch, and check that the LED of the SST activation switch comes on.

CAUTION: If the LED comes on when the activation switch is not being pressed, SST malfunction is possible, so be sure not to use the SST.

3. Disconnect the SST from the battery.

b. Precaution.
c. Disconnect the battery negative terminal.




d. Remove the steering column cover.
1. While turning the steering wheel assembly to the right and left, remove the 3 screws and steering column cover.




e. Install the SST.

CAUTION: Check that there is no looseness in the steering wheel assembly and horn button assembly.

1. Disconnect the airbag connector (yellow colored one) from the spiral cable sub-assembly.

NOTE: When handling the airbag connector, take care not to damage the airbag wire harness.

2. Connect the SST connector to the airbag connector of the spiral cable sub-assembly.
SST 09082-00700, 09082-00780

NOTE: To avoid damaging the SST connector and wire harness, do not lock the secondary lock of the twin lock.




3. Move the SST at least 10 m (33 ft) away from the vehicle front side window.
4. Maintaining enough clearance for the SST wire harness in the front side window, close all doors and windows of the vehicle.

NOTE: Take care not to damage the SST wire harness.

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

f. Deploy the airbag.

1. Check that no one is inside the vehicle or within a 10 m (33 ft) radius of the vehicle.
2. Press the SST activation switch and deploy the air-bag.

CAUTION:
- When deploying the airbag, make sure that no one is near the vehicle.
- 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.

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