2001 TOYOTA SEQUOIA service

SR01S±06
± STEERINGSTEERING SYSTEM
SR±1
3228 Author: Date:
2005 SEQUOIA (RM1146U)
STEERING SYSTEM
PRECAUTION

Care must be taken to replace parts properly because they could affect the performance of the
steering system and result in a driving hazard.

The SEQUOIA is equipped with an SRS (Supplemental Restraint System) such as the driver air-
bag and front passenger airbag. Failure to carry out service operation in the correct sequence
could cause the SRS to unexpectedly deploy during servicing, possibly leading to a serious
accident. Before servicing (including removal or installation of parts, inspection or replace-
ment), be sure to read the notices precautionary in the RS section.

When disconnecting the battery terminal, initialize the following system after the terminal is re-
connected.
System NameSee Page
Back Door Power Window Control SystemBE±77

When replacing the steering angle sensor, drive the vehicle straight ahead at a speed of 6.5 mph
(10.5 km/h) or more. Accordingly, zero point calibration of the steering angle sensor is per-
formed.

After performing ºFront wheel alignment adjustmentº, clearing and reading the yaw rate & de-
celeration sensor zero point calibration data is necessary (See page DI±897).

R11651
SSTWire Cylinder End
Stopper
F08343
SST
F08340Oil Seal SST
SR±44
± STEERINGPOWER STEERING GEAR
3271 Author: Date:
2005 SEQUOIA (RM1146U)
14. REMOVE CYLINDER END STOPPER
(a) Using SST, turn the stopper clockwise until the wire end
can be seen through the service hole.
SST 09631±16010
(b) Using SST, turn the stopper counterclockwise, and re-
move the wire.
SST 09631±16010
15. REMOVE STEERING RACK AND BUSHING
(a) Using SST, press out the steering rack with the bushing.
NOTICE:
Take care not to drop the rack.
SST 09950±70010 (09951±07200)
(b) Remove the bushing from the rack.
(c) Remove the O±ring from the bushing.
16. REMOVE OIL SEAL
Using SST, press out the oil seal.
SST 09950±60010 (09951±00360),
09950±70010 (09951±07360)

RS0B6±09
± SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
RS±1
3284 Author: Date:
2005 SEQUOIA (RM1146U)
SRS AIRBAG
PRECAUTION
CAUTION:

The vehicle is equipped with SRS, which consists of a driver airbag, front passenger airbag,
side airbag and curtain shield airbag. Failure to carry out service operations in the correct se-
quence could cause the SRS to unexpectedly deploy during servicing, possibly leading to a
serious accident. Further, if a mistake is made in servicing the SRS, it is possible that the SRS
may fail to operate when required. Before performing servicing (including removal or installa-
tion of parts, inspection or replacement), be sure to read the following items carefully, then fol-
low the correct procedures indicated in the repair manual.

Wait at least 90 seconds after the ignition switch is turned to the ºLOCKº position and the nega-
tive (±) terminal cable is disconnected from the battery.
(The SRS is equipped with a back±up power source, so that if work is started within 90 seconds
after disconnecting the negative (±) terminal cable of the battery, the SRS may be deployed.)

Do not expose the steering wheel pad, front passenger airbag assembly, side airbag assembly,
curtain shield airbag assembly, airbag sensor assembly, front airbag sensor, side airbag sen-
sor assembly, curtain shield airbag sensor assembly, seat position sensor assembly or occu-
pant classification ECU directly to hot air or flames.

Be sure to perform the initialization of the occupant classification ECU if any of the following
conditions occur (see page DI±1128). If the initialization is not performed, the SRS may not oper-
ate properly.

The occupant classification ECU is replaced.

Accessories (seatback tray, seat cover, etc.) are installed to the vehicle.

The passenger seat is removed from the vehicle, and then reinstalled or replaced.

The passenger airbag ON/OFF indicator light (ºOFFº) comes on when the passenger seat
is not occupied.

The vehicle is brought to the workshop for repair due to an accident or collision.
NOTICE:

Malfunction symptoms of the SRS are difficult to confirm, so DTCs are the most important
source of information when troubleshooting. When troubleshooting the SRS, always inspect
DTCs before disconnecting the battery.

Even in the case of a minor collision when the SRS does not deploy, the steering wheel pad,
front passenger airbag assembly, side airbag assembly, curtain shield airbag assembly, airbag
sensor assembly, front airbag sensor, side airbag sensor assembly, curtain shield airbag sen-
sor assembly, seat position sensor assembly and occupant classification ECU should be in-
spected. (see page RS±22, RS±35, RS±49, RS±64, RS±72, RS±83, RS±88, RS±93, RS±98,
RS±106 and RS±112).

Before repair work, remove the airbag sensor if any kind of shock is likely to occur to the airbag
sensor during the operation.

Never use SRS parts from another vehicle. When replacing the parts, replace them with new
ones.

Never disassemble or repair the steering wheel pad, front passenger airbag assembly, side air-
bag assembly, curtain shield airbag assembly, airbag sensor assembly, front airbag sensor,
side airbag sensor assembly, curtain shield airbag sensor assembly, seat position sensor as-
sembly or occupant classification ECU in order to reuse it.

RS118±01
AB0152
SST
AB0152
SST
± SUPPLEMENTAL RESTRAINT SYSTEMSTEERING WHEEL PAD AND SPIRAL CABLE
RS±23
3306 Author: Date:
2005 SEQUOIA (RM1146U)
DISPOSAL
HINT:
When scrapping a vehicle equipped with SRS or disposing of
the steering wheel pad, be sure to deploy the airbag first in ac-
cordance with the procedure described below. If any abnormal-
ity occurs with the airbag deployment, contact the SERVICE
DEPT. of TOYOTA MOTOR SALES, USA, INC.
CAUTION:

Never dispose of a steering wheel pad which 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 resi-
dents.

When deploying the airbag, always use the specified
SST (SRS Airbag Deployment Tool). Perform the op-
eration in a place away from electrical noise.

When deploying an airbag, perform the operation at
least 10 m (33 ft) away from the steering wheel pad.

The steering wheel 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 steer-
ing wheel pad with the deployed airbag.

Do not apply water, etc. to a steering wheel pad with
a deployed airbag.

Always wash your hands with water after completing
the operation.
1. AIRBAG DEPLOYMENT WHEN SCRAPPING VE-
HICLE
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.

AB0152
SST
AB0163
Wire Harness
Diameter
Stripped Wire Harness Section
H23203
L
M
H23207
SST
RS±26
± SUPPLEMENTAL RESTRAINT SYSTEMSTEERING WHEEL PAD AND SPIRAL CABLE
3309 Author: Date:
2005 SEQUOIA (RM1146U)
(a) Check the function of the SST (see step 1±(a)).
(b) Remove the steering wheel pad (see page SR±14).
CAUTION:

When removing the steering wheel pad, work must be
started 90 seconds after the ignition switch is turned
to the ºLOCKº position and the negative (±) terminal
cable is disconnected from the battery.

When storing the steering wheel pad, keep the airbag
deployment side facing upward.
(c) Using a service±purpose wire harness for the vehicle, tie
down the steering wheel pad to the disc wheel.
Wire harness: Stripped wire harness section
1.25 mm
2
or more (0.0019 in2. or more).
CAUTION:
If the wire harness is too thin or an alternative object is
used to tie down the steering wheel pad, it may be snapped
by the shock when the airbag is deployed. Always use a
wire harness for vehicle use with an area of at least 1.25
mm
2
(0.0019 in.2).
HINT:
To calculate the area of the stripped wire harness section:
Area = 3.14 x (Diameter)
2
divided by 4
(1) Install the 2 bolts with washers into the 2 bolt holes
on the steering wheel pad.
Bolt:
L: 35.0 mm (1.378 in.)
M: 6.0 mm (0.236 in.)
Pitch: 1.0 mm (0.039 in.)
NOTICE:

Tighten the bolts by hand until the bolts become diffi-
cult to turn.

Do not tighten the bolts excessively.
(2) After connecting the SST below to each other, con-
nect them to the steering wheel pad connectors.
SST 09082±00802 (09082±10801, 09082±30801)

RS11A±01
AB0152
SST RS±36
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT PASSENGER AIRBAG ASSEMBLY
3319 Author: Date:
2005 SEQUOIA (RM1146U)
DISPOSAL
HINT:
When scrapping a vehicle equipped with the SRS or disposing
of the front passenger airbag 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 the TOYOTA MOTOR SALES, U.S.A.,
INC.
CAUTION:

Never dispose of a front passenger airbag 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 resi-
dents.

When deploying the airbag, always use the specified
SST (SRS Airbag Deployment Tool). Perform the op-
eration in a place away from electrical noise.

When deploying the airbag, perform the operation at
least 10 m (33 ft) away from the front passenger air-
bag assembly.

The front passenger airbag assembly becomes ex-
tremely 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
passenger airbag assembly with a deployed airbag

Do not apply water, etc. to a front passenger airbag
assembly with a deployed airbag.

Always wash your hands with water after completing
the operation.
HINT:
Prepare a battery as the power source to deploy the airbag.

AB0163
Wire Harness
Diameter
Stripped Wire Harness Section
H23218
Inner
Diameter Width
± SUPPLEMENTAL RESTRAINT SYSTEMFRONT PASSENGER AIRBAG ASSEMBLY
RS±39
3322 Author: Date:
2005 SEQUOIA (RM1146U)
(c) Using a service±purpose wire harness for the vehicle, tie
down the front passenger airbag assembly to the tire.
Wire harness: Stripped wire harness section
1.25 mm
2
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 front passenger airbag assy, it may be
snapped by the shock when the airbag is deployed. Always
use a wire harness for vehicle use with an area of at least
1.25 mm
2
(0.0019 in.2).
HINT:
To calculate the area of the stripped wire harness section:
Area = 3.14 X (Diameter)
2 divided by 4
(1) Position the front passenger airbag assembly in-
side the tire with the airbag deployment side facing
inside.
Tire size: Must exceed the following dimensions:
Width: 185 mm (7.28 in.)
Inner diameter: 360 mm (14.17 in.)
CAUTION:

Make sure that the wire harness is tight. If there is
slack in wire harness, the front passenger airbag as-
sembly may become loose due to the shock when the
airbag is deployed.

Always tie down the front passenger airbag assembly
with the airbag deployment side facing inside.
NOTICE:
The tire will be marked by the airbag deployment, so use an
extra tire.

RS11B±01
AB0152
SST RS±50
± SUPPLEMENTAL RESTRAINT SYSTEMSIDE AIRBAG ASSEMBLY (Power Adjuster Type)
3333 Author: Date:
2005 SEQUOIA (RM1146U)
DISPOSAL
HINT:

Use the same procedures for the RH side and LH side.

The procedures listed below are for the LH side.

When scrapping a vehicle equipped with the SRS or dis-
posing of the front seat airbag assembly LH, 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 front seat airbag 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 resi-
dents.

When deploying the airbag, always use the specified
SST (SRS Airbag Deployment Tool). Perform the op-
eration in a place away from electrical noise.

When deploying the airbag, perform the operation at
least 10 m (33 ft) away from the front seat airbag as-
sembly.

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.

Always wash your hands with water after completing
the operation.

Do not apply water, etc. to a front seat airbag assem-
bly with a deployed airbag.
HINT:
Prepare a battery as the power source to deploy the airbag.