2001 TOYOTA SEQUOIA Page 18

F06750
Fulcrum Length SST
R06400
Brass Bar
W01261
W04223
3 mm
(0.12 in.)
or less
SST
± STEERINGPOWER STEERING GEAR
SR±53
3280 Author: Date:
2005 SEQUOIA (RM1146U)
(b) Using a spanner, hold the steering rack steady, and using
SST, tighten the rack end.
SST 09922±10010
Torque: 76 N´m (770 kgf´cm, 56 ft´lbf)
NOTICE:
Use SST in the direction shown in the illustration.
SST 09922±10010
HINT:
Use a torque wrench with a fulcrum length of 345 mm (13.58
in.).
(c) Using a brass bar and hammer, stake the washer.
NOTICE:
Avoid any impact on the rack.
(d) Perform the same procedure on the other side.
17. INSTALL RH AND LH RACK BOOTS, CLAMPS AND
CLIPS
(a) Ensure that the steering rack hole is not clogged with
grease.
HINT:
If the hole is clogged, the pressure inside the boot will change
after it is assembled and the steering wheel is turned.
(b) Set a new clamp to the groove of the rack boot.
(c) Install the boot.
NOTICE:
Be careful not to damage or twist the boot.
(d) Using SST, tighten the clamp as shown in the illustration.
SST 09521±24010
(e) Install the clip to the rack boot.
(f) Perform the same procedure on the other side.
18. INSTALL RH AND LH TIE ROD ENDS AND LOCK NUTS
(a) Screw the lock nut and tie rod end onto the rack end until
the matchmarks are aligned.
(b) After adjusting toe±in, tighten the nut
(See page SA±4).
Torque: 55 N´m (560 kgf´cm, 41 ft´lbf)

SR02S±08
F06730
B C
A
BD D
F13617
Fulcrum
Length
SST
± STEERINGPOWER STEERING GEAR
SR±55
3282 Author: Date:
2005 SEQUOIA (RM1146U)
INSTALLATION
1. INSTALL GROMMET AND BRACKET
2. INSTALL PS GEAR ASSEMBLY
(a) Install the PS gear assembly with the gear assembly set
bolt ºAº.
Torque: 165 N´m (1,700 kgf´cm, 123 ft´lbf)
(b) Install the gear assembly set bolt ºBº, washer and nut ºBº.
Torque: 130 N´m (1,350 kgf´cm, 96 ft´lbf)
(c) Install the stud bolt ºCº to the bracket.
Torque: 20 N´m (200 kgf´cm, 15 ft´lbf)
(d) Install the bolt ºDº and nut ºDº to the bracket.
Torque: 165 N´m (1,700 kgf´cm, 123 ft´lbf)
3. CONNECT PRESSURE FEED AND RETURN TUBES
Using SST, connect the tubes.
SST 09023±12701
Torque: 22 N´m (227 kgf´cm, 16 ft´lbf)
HINT:

Use a torque wrench with a fulcrum length of 300 mm
(11.81 in.).

This torque value is effective in case that SST is parallel
to a torque wrench.
4. CONNECT CLAMP PLATE
Connect the clamp plate and install the bolt.
Torque: 29 N´m (290 kgf´cm, 21 ft´lbf)
5. CONNECT NO. 2 INTERMEDIATE SHAFT ASSEMBLY
(See page SR±23)
6. CONNECT RH AND LH TIE ROD ENDS
(See page SA±86)
7. POSITION FRONT WHEEL FACING STRAIGHT
AHEAD
HINT:
Do it with the front of the vehicle jacked up.
8. CENTER SPIRAL CABLE (See page SR±23)
9. INSTALL STEERING WHEEL
(a) Align the matchmark on the wheel with the one on the
steering column main shaft.
(b) Temporarily tighten the wheel set nut.
(c) Connect the connector.
10. BLEED POWER STEERING SYSTEM
(See page SR±4)
11. CHECK STEERING WHEEL CENTER POINT

SR±56
± STEERINGPOWER STEERING GEAR
3283 Author: Date:
2005 SEQUOIA (RM1146U)
12. TORQUE STEERING WHEEL SET NUT
Torque: 50 N´m (510 kgf´cm, 37 ft´lbf)
13. INSTALL STEERING WHEEL PAD (See page SR±23)
14. CHECK FRONT WHEEL ALIGNMENT
(See page SA±4)
15. CONNECT CABLE TO NEGATIVE BATTERY TERMI-
NAL
16. PERFORM YAW RATE AND DECELERATION SENSOR
ZERO POINT CALIBRATION (See page DI±897)
17. PERFORM INITIALIZATION (See page IN±20)
Some systems need initialization when disconnecting the cable
from the negative battery terminal.

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.

RS±2
± SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
3285 Author: Date:
2005 SEQUOIA (RM1146U)

If the steering wheel pad, front passenger airbag assembly, side airbag assembly, curtain
shield airbag assembly, airbag sensor assembly, front airbag sensor, side airbag sensor as-
sembly, curtain shield airbag sensor assembly, seat position sensor assembly or occupant
classification ECU has been dropped, or if there are any cracks, dents or other defects in the
case, bracket or connector, replace it with a new one.

Use a volt/ohmmeter with high impedance (10 kW/V minimum) for troubleshooting the electrical
circuits.

Information labels are attached to the periphery of the SRS components. Follow the instruc-
tions in the caution.

After work on the SRS is completed, perform the SRS warning light check (see page DI±1137).

When the negative (±) terminal cable is disconnected from the battery, the memory will be
cleared. Because of this, be sure to make a record of the contents memorized in each system
before starting work. When work is finished, adjust each system as it was before. Never use
a back±up power supply from outside the vehicle to avoid erasing the memory in any system.

RS116±01
H24695
H23918Spiral Cable
H16182
± SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
RS±3
3286 Author: Date:
2005 SEQUOIA (RM1146U)
OPERATION
CAUTION:
Be sure to perform the initialization of the occupant classi-
fication ECU if any of the following conditions occur (see
page DI±1128). If the initialization is not performed, the SRS
may not operate 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.
1. STEERING WHEEL PAD
The inflator and bag of the SRS are stored in the steering wheel
pad and cannot be disassembled. The inflator contains a squib,
igniter charge, and gas generator, etc., and inflates the bag
when instructed by the airbag sensor assembly. The steering
wheel pad cannot be disassembled.
2. SPIRAL CABLE
A spiral cable is used as an electrical joint from the vehicle body
side to the steering wheel. The spiral cable cannot be disas-
sembled.
3. FRONT PASSENGER AIRBAG ASSEMBLY
The inflator and bag of the SRS are stored in the front passen-
ger airbag assembly and cannot be disassembled. The inflator
contains a squib, igniter charge, gas generator, etc., and in-
flates the bag when instructed by the airbag sensor assembly.
The front passenger airbag assembly cannot be disassembled.

Z05953
Spacer
Housing
Female Male
R10587
When Connector is Connected When Connector is Disconnected
Short Spring Plate
Housing
Housing
Terminal
ConnectorsShort Spring PlateSquib
Closed CircuitSquib Short Spring Plate ONContacting Male Terminal Short Spring Plate
RS±8
± SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
3291 Author: Date:
2005 SEQUOIA (RM1146U)
(a) All connectors in the SRS, except the seat position airbag
sensor connector and occupant classification ECU con-
nectors, are colored yellow to distinguish them from other
connectors. These connectors have special functions,
and are specially designed for the SRS. All SRS connec-
tors use durable gold±plated terminals, and are placed in
the locations shown on the previous page to ensure high
reliability.
(1) Terminal Twin±Lock Mechanism
Each connector has a two±piece component con-
sisting of a housing and a spacer. This design al-
lows the terminal to be locked securely by two lock-
ing devices (the retainer and the lance) to prevent
terminals from coming out.
(2) Activation Prevention Mechanism
Each connector contains a short spring plate. When
the connector is disconnected, the short spring
plate automatically connects the positive (+) termi-
nal and negative (±) terminal of the squib.

RS0B9±13
± SUPPLEMENTAL RESTRAINT SYSTEMSTEERING WHEEL PAD AND SPIRAL CABLE
RS±21
3304 Author: Date:
2005 SEQUOIA (RM1146U)
REMOVAL
NOTICE:

If the wiring connector of the SRS is disconnected and the ignition switch is in the ON or ACC
position, DTCs will be recorded.

Never use airbag parts from another vehicle. When replacing parts, replace them with new
ones.
1. PRECAUTION (SEE PAGE RS±1 and RS±3)
2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
Wait for 90 seconds after disconnecting the cable to prevent the airbag working.
3. REMOVE STEERING WHEEL PAD (SEE PAGE SR±14)
4. REMOVE STEERING WHEEL (SEE PAGE SR±14)
5. REMOVE STEERING COLUMN COVER LOWER (SEE PAGE SR±14)
6. REMOVE SPIRAL CABLE (SEE PAGE SR±14)