Toyota Corolla 2004 Repair Manual - HORN BUTTON ASSY
60–14
–SUPPLEMENTAL RESTRAINT SYSTEM HORN BUTTON ASSY (April, 2003)
600BZ–03
DISPOSAL
HINT:
When scrapping vehicle equipped with an SRS or disposing of a horn button assy, always first deploy the
airbag in accordance with the procedure described below. If any abnormality occurs in the airbag deployment, contact the SERVICE DEPT. of TOYOTA MOTOR SALES, U.S.A., INC.
CAUTION:
Never dispose of a horn button assy which has an un-
deployed airbag.
The airbag produces a sizeable exploding sound
when it deploys, so perform the operation out of
doors and the place 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.
SST
H40004
When deploying an airbag, perform the operation at
least 10 m (33 ft) away from the horn button assy.
The horn button assy is very hot when the airbag is
deployed, so leave it for at least 30 minutes after deployment.
Use gloves and safety glasses when handling a horn
button assy with the deployed airbag.
Always wash your hands with water after completing
the operation.
Do not apply water, etc. to a horn button assy at-
tached on the deployed airbag.
SST
SST
2004 COROLLA (RM1037U)
Battery
1. DISPOSE OF HORN BUTTON ASSY (WHEN
SCRAPPING VEHICLE DEPLOYMENT METHOD)
HINT:
Prepare a battery for the power source to deploy the airbag.
H40005
(a) Check the function of SST.
CAUTION:
When deploying the airbag, always use the specified SST:
SRS Airbag Deployment Tool.
SST 09082–00700
H40004
1628Author: Date:
SST
SST
Battery
60–15
–SUPPLEMENTAL RESTRAINT SYSTEM HORN BUTTON ASSY (April, 2003)
(1) Connect the SST to the battery.
Connect the red clip of the SST to the battery positive (+) terminal and the black clip to the battery neg-
ative (–) terminal.
HINT:
Do not connect the yellow connector which will be connected
with the supplemental restraint system.
H40005
(2) Check the function of SST.
Press the SST activation switch, and check that the
LED of the SST activation switch lights up.
CAUTION:
If the LED lights up when the activation switch is not being
pressed, SST malfunction is probable, so definitely do not
use the SST.
(3) Disconnect the SST from the battery.
H40006
SST
SST
Battery
10 m (33 ft) or more
(b) Set SST.
CAUTION:
Check that there is no looseness in the steering wheel and
horn button assy.
(1) While turning the steering wheel to the right / left, re-
move the 3 screws and column lower cover.
(2) Disconnect the airbag connector of the spiral cable.
H42033
(3) Connect the connectors of the 2 SST to the airbag
connector of the spiral cable back side.
SST 09082–00700, 09082–00780
H42034
(4) Move the SST at least 10 m (33 ft) away from the
front of the vehicle.
(5) Close all the doors and windows of the vehicle.
NOTICE:
Take care not to damage the SST wire harness.
(6) Connect the red clip of the SST to the battery posi-
tive (+) terminal and the black clip to the negative (–)
terminal.
H40007
2004 COROLLA (RM1037U)
1629Author: Date:
60–16
Stripped Wire Harness Section
2004 COROLLA (RM1037U)
Wire Harness
Diameter
H40008
–SUPPLEMENTAL RESTRAINT SYSTEM HORN BUTTON ASSY (April, 2003)
(c) Deploy the airbag.
(1) Confirm that n o one is inside the vehicle or within 10
m (33 ft) area around the vehicle.
(2) Press the SST activation switch and deploy the air-
bag.
HINT:
The airbag deploys simultaneously when the LED of the SST
activation switch lights up.
(d) Dispose of the horn button assy (with airbag).
CAUTION:
The horn button assy is very hot when the airbag is
deployed, so leave it for at least 30 minutes after deployment.
When moving a vehicle which has a horn button assy
with deployed airbag for scrapping, use gloves and
safety glasses.
Use gloves and safety glasses when handling a horn
button assy with the deployed airbag.
Always wash your hands with water after completing
the operation.
Do not apply water, etc. to a horn button assy at-
tached on the deployed airbag.
HINT:
When scrapping a vehicle, deploy the airbag and scrap the vehicle with the horn button assy still installed.
2. DISPOSE OF HORN BUTTON ASSY (WHEN
DISPOSING OF AIRBAG ASSEMBLY DEPLOYMENT
METHOD)
NOTICE:
When disposing of the horn button assy (with airbag)
only, never use the customers vehicle to deploy the
airbag.
Be sure to follow the procedure given below when de-
ploying the airbag.
HINT:
Prepare a battery for the power source to deploy the airbag.
(a) Remove the horn button assy (See page 60–13).
CAUTION:
When storing the horn button assy, keep the upper surface
of the pad facing upward.
(b) Using a service–purpose wire harness, tie down the horn
button assy to the disc wheel.
Wire harness: Stripped wire harness section
2
1.25 mm
or more (0.0019 in2. or more)
CAUTION:
If the wire harness is too thin or some other things are used
to tie down the horn button assy, it may be snapped by the
shock when the airbag is deployed. This is highly dangerous. Be sure to use the wire harness which is at least 1.25
2
(0.0019 in2).
mm
1630Author: Date:
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