2001 TOYOTA SEQUOIA Tensioner

IN0IG±04
BO4111
Negative Cable
± INTRODUCTIONFOR ALL OF VEHICLES
IN±9
9 Author: Date:
2005 SEQUOIA (RM1146U)
FOR ALL OF VEHICLES
PRECAUTION
1. FOR VEHICLES EQUIPPED WITH SRS AIRBAG AND
SEAT BELT PRETENSIONER
(a) The SEQUOIA is equipped with an SRS (Supplemental
Restraint System), such as the driver airbag, front pas-
senger airbag, side airbag assembly, curtain shield airbag
assembly and seat belt pretensioner.
Failure to carry out service operations in the correct se-
quence could cause the supplemental restraint system to
unexpectedly deploy during servicing, possibly leading to
a serious accident.
Further, if a mistake is made in servicing the supplemental
restraint system, it is possible the SRS may fail to operate
when required. Before servicing (including removal or
installation of parts, inspection or replacement), be sure
to read the following items carefully, then follow the cor-
rect procedure described in this manual.
(b) GENERAL NOTICE
(1) Malfunction symptoms of the supplemental re-
straint system are difficult to confirm, so the diag-
nostic trouble codes become the most important
source of information when troubleshooting. When
troubleshooting the supplemental restraint system,
always inspect the diagnostic trouble codes before
disconnecting the battery (See page DI±1118).
(2) Work must be started after 90 seconds from the
time the ignition switch is turned to the ºLOCKº posi-
tion and the negative (±) terminal cable is discon-
nected from the battery.
(The supplemental restraint system is equipped
with a back±up power source because if work is
started within 90 seconds of disconnecting the neg-
ative (±) terminal cable from the battery, the SRS
may deploy.)
When the negative (±) terminal cable is discon-
nected from the battery, memory of the clock and
audio systems will be cancelled. So before starting
work, make a record of the contents memorized in
each memory system. When work is finished, reset
the clock and audio systems as before. To avoid
erasing the memory of each memory system, never
use a back±up power supply from another battery.

IN±10
± INTRODUCTIONFOR ALL OF VEHICLES
10 Author: Date:
2005 SEQUOIA (RM1146U)
(3) Even in case of a minor collision where the SRS
does not deploy, the steering wheel pad, the pas-
senger airbag assembly, side airbag assembly, cur-
tain shield airbag assembly, seat belt pretensioner,
airbag sensor assembly, front airbag sensor, side
airbag sensor assembly and curtain shield airbag
sensor assembly should be inspected.
Parts of referenceSee page
Steering wheel padSee page RS±22
Passenger side airbag assemblySee page RS±35
Side airbag assembly
Power adjuster type
Manual adjuster type
See page RS±49
See page RS±64
Curtain shield airbag assemblySee page RS±72
Seat belt pretensionerSee page BO±165
Airbag sensor assemblySee page RS±83
Front airbag sensor assemblySee page RS±88
Side airbag sensor assemblySee page RS±93
Curtain shield airbag sensor assemblySee page RS±98
(4) Never use SRS parts from another vehicle. When
replacing parts, replace them with new ones.
(5) Before repairs, remove the airbag sensor because
shocks are likely to be applied to the sensor during
repairs.
(6) Never disassemble or repair the steering wheel
pad, front passenger airbag assembly, airbag sen-
sor assembly and front airbag sensor.
(7) If the steering wheel pad, front passenger airbag
assembly, side airbag assembly, curtain shield air-
bag assembly, seat belt pretensioner, airbag sensor
assembly and front airbag sensor have been
dropped, or if there are cracks, dents or other de-
fects in the case, bracket or connector, replace
them with new ones.
(8) Do not expose the steering wheel pad, front pas-
senger airbag assembly, side airbag assembly, cur-
tain shield airbag assembly, seat belt pretensioner,
airbag sensor assembly and front airbag sensor di-
rectly to hot air or flames.
(9) Use a volt/ohmmeter with high impedance (10 kW/V
minimum) for troubleshooting of the electrical cir-
cuit.
(10) Information labels are attached to the periphery of
the SRS components. Follow the instructions on the
notices.
(11) After work on the supplemental restraint system is
completed, check the SRS warning light (See page
DI±1118).

B02121
Example: IN±16
± INTRODUCTIONFOR ALL OF VEHICLES
16 Author: Date:
2005 SEQUOIA (RM1146U)
(h) SEAT BELT PRETENSIONER
(1) Never measure the resistance of the seat belt pre-
tensioner (This may cause the seat belt pretension-
er activation which is very dangerous.).
(2) Never disassemble the seat belt pretensioner.
(3) Never install the seat belt pretensioner in another
vehicle.
(4) Store the seat belt pretensioner where the ambient
temperature remains below 80°C (176°F) and
away from electrical noise without high humidity.
(5) When using electric welding, first disconnect the
connector (yellow color and 2 pins) before starting
work.
(6) When disposing of a vehicle or the seat belt preten-
sioner alone, the seat belt pretensioner should be
activated before disposal (See page BO±166). Per-
form the operation in a safe place away from electri-
cal noise.
(7) The seat belt pretensioner is hot after activation, so
let it cool down sufficiently before the disposal.
However never apply water to the seat belt preten-
sioner.

PP3JT±01
± PREPARATIONBODY
PP±75
133 Author: Date:
2005 SEQUOIA (RM1146U)
BODY
SST (Special Service Tools)
09082±00700SRS Airbag Deployment ToolSEAT BELT PRETENSIONER
09082±00740Airbag Deployment Wire
Sub±harness No.2SEAT BELT PRETENSIONER
09806±30010Windshield Moulding RemoverWINDSHIELD
ROOF DRIP SIDE FINISH
MOULDING
09812±00010Door Hinge Set Bolt WrenchFRONT DOOR

PP0SI±02
± PREPARATIONBODY
PP±77
135 Author: Date:
2005 SEQUOIA (RM1146U)
EQUIPMENT
Clip remover
Torque wrench
Hexagon wrench (6 mm)
Torx driver
Hog ring pliers
Hand riveter
TapeTo avoid surface damage
Adhesive tapeTo avoid surface damage
Double±stick tape
Adhesive
Cleaner
Shop rag
Knife
Sealer gun
Brush
Putty spatula
Glass plate or similar object
Wooden block or similar object
Heat light
Piano wire
Rope (no projections, difficult to break)Seat belt pretensioner
Tire with disk wheel Width: 185 mm (7.28 in.)
Inner diam: 360 mm (14.17 in.)Seat belt pretensioner
Vinyl bagSeat belt pretensioner

SS0OQ±12
SS±4
± SERVICE SPECIFICATIONSENGINE MECHANICAL
146 Author: Date:
2005 SEQUOIA (RM1146U)
ENGINE MECHANICAL
SERVICE DATA
Compression
pressureat 250 rpm STD
Minimum
Difference of pressure between each cylinder1,373 kPa (14.0 kgf/cm2, 199 psi) or more
1,030 kPa (10.5 kgf/cm2, 149 psi)
98 kPa (1.0 kgf/cm2, 14 psi) or less
Valve
clearanceat cold Intake
Exhaust
Valve clearance adjusting shim No.00
No.02
No.04
No.06
No.08
No.10
No.12
No.14
No.16
No.18
No.20
No.22
No.24
No.26
No.28
No.30
No.32
No.34
No.36
No.38
No.40
No.42
No.44
No.46
No.48
No.50
No.52
No.54
No.56
No.58
No.60
No.62
No.64
No.66
No.68
No.70
No.72
No.74
No.76
No.78
No.800.15 to 0.25 mm (0.006 to 0.010 in.)
0.25 to 0.35 mm (0.010 to 0.014 in.)
2.000 mm (0.0787 in.)
2.020 mm (0.0795 in.)
2.040 mm (0.0803 in.)
2.060 mm (0.0811 in.)
2.080 mm (0.0819 in.)
2.100 mm (0.0827 in.)
2.120 mm (0.0835 in.)
2.140 mm (0.0843 in.)
2.160 mm (0.0850 in.)
2.180 mm (0.0858 in.)
2.200 mm (0.0866 in.)
2.220 mm (0.0874 in.)
2.240 mm (0.0882 in.)
2.260 mm (0.0890 in.)
2.280 mm (0.0898 in.)
2.300 mm (0.0906 in.)
2.320 mm (0.0913 in.)
2.340 mm (0.0921 in.)
2.360 mm (0.0929 in.)
2.380 mm (0.0937 in.)
2.400 mm (0.0945 in.)
2.420 mm (0.0953 in.)
2.440 mm (0.0961 in.)
2.460 mm (0.0969 in.)
2.480 mm (0.0976 in.)
2.500 mm (0.0984 in.)
2.520 mm (0.0992 in.)
2.540 mm (0.1000 in.)
2.560 mm (0.1008 in.)
2.580 mm (0.1016 in.)
2.600 mm (0.1024 in.)
2.620 mm (0.1031 in.)
2.640 mm (0.1039 in.)
2.660 mm (0.1047 in.)
2.680 mm (0.1055 in.)
2.700 mm (0.1063 in.)
2.720 mm (0.1071 in.)
2.740 mm (0.1079 in.)
2.760 mm (0.1087 in.)
2.780 mm (0.1094 in.)
2.800 mm (0.1102 in.)
Ignition timingw/ Terminals TC and E1 connected of DLC15 to15° BTDC @ idle
Idle speed±700 ± 50 rpm
Timing belt
tensionerProtrusion from housing end10.5 to 11.5 mm (0.413 to 0.453 in.)

SS0OR±13
SS±8
± SERVICE SPECIFICATIONSENGINE MECHANICAL
150 Author: Date:
2005 SEQUOIA (RM1146U)
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Fan shroud x Radiator assembly5.55043 in.´lbf
Radiator bracket x Radiator assembly2020015
A/C Compressor x Cylinder block4950036
Generator x Generator bracket3940029
No.1 idler pulley, No.2 idler pulley x Cylinder Block34.535025
Camshaft timing pulley x Camshaft timing tube8.18372 in.´lbf
Drive belt tensioner x Cylinder block1616012
Timing belt tensioner x Oil pump2627019
Crankshaft pulley x Crankshaft2452,500181
Fan bracket x Cylinder block 12 mm head
14 mm head16
32160
33012
24
No.2 timing belt cover x Cylinder block1616012
No.3 timing belt cover x Cylinder block, cylinder head7.58066 in.´lbf
Drive belt idler pulley x Fan bracket3940029
Fluid coupling x Fan bracket2929621
Exhaust manifold x Cylinder head4445033
Cylinder head x Cylinder block 1st
2nd
3rd40
Turn 90°
Turn 90°408
Turn 90°
Turn 90°30
Turn 90°
Turn 90°
Camshaft bearing cap x Cylinder head Bolt A
Others7.5
1680
16066 in.´lbf
12
Cylinder head cover x Cylinder head6.06053 in.´lbf
Engine hanger x Cylinder head3738027
Front water bypass joint, Rear water bypass joint x Cylinder head1818513
Intake manifold x Cylinder head1818513
Timing belt rear plate x Cylinder head7.58066 in.´lbf
Drive plate x Crankshaft 1st
2nd49
Turn 90°500
Turn 90°36
Turn 90°
Transmission x Cylinder block7273053
Transmission x No.1 oil pan3738027
Drive plate x Torque converter clutch4849035
Flywheel housing under cover x Transmission1818513
Engine rear mounting bracket x Transmission6566348
Frame crossmember x Rear engine mounting insulator Bolt A
Bolt B18
72183
73013
53
Frame bracket x Engine mounting bracket3838828
PS pump x Cylinder head6263246
Main bearing cap x Cylinder block 1st
2nd27
Turn 90°275
Turn 90°20
Turn 90°
Connecting rod cap x Connecting rod 1st
2nd24.5
Turn 90°250
Turn 90°18
Turn 90°
Rear oil seal retainer x Cylinder block8.08071 in.´lbf
Engine coolant drain union x Cylinder block4950036
Engine mounting bracket x Cylinder block3637027
Water bypass pipe x Cylinder block1818513

DIDGJ±02
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI±1121
1315 Author: Date:
2005 SEQUOIA (RM1146U)
SYSTEM DESCRIPTION
1. DESCRIPTION OF SUPPLEMENTAL RESTRAINT SYSTEM
(a) General description.
In this system, the airbag sensor assembly installed on the floor under the A/C unit determines whether
or not to activate the SRS airbags (driver airbag, passenger airbag, front seat airbags and curtain
shield airbags) and seat belt pretensioners by receiving the collision signal from each sensor (exclud-
ing the airbag sensor assembly). When there is trouble in the system, the airbag sensor assembly turns
on the SRS warning light on the combination meter to inform the driver.
(b) Description of the dual stage control.
The airbag sensor assembly controls the dual stage deployment of the driver airbag in the steering
wheel pad and the passenger airbag on the instrument panel. The airbag sensor assembly controls
the dual stage deployment of the driver airbag according to the collision impact, seat position and seat
belt ON/OFF state. It also controls the dual stage deployment of the passenger airbag according to
the collision impact and seat belt ON/OFF state.
(c) Description of the roll±over function.
(1) The airbag sensor assembly detects inclination signals from the inclination sensor installed on
the vehicle. The roll±over function ensures passenger safety by using these signals to activate
the RH and LH curtain shield airbag assembly and seat belt pretensioner when vehicle inclination
exceeds the specified value.
(2) An RSCA OFF switch (roll±over sensing curtain shield airbag OFF switch), which allows optional
deactivation of the roll±over function, is installed on the vehicle.
(d) Description of check mode (signal check).
This airbag sensor assembly is operable using the check mode of the hand±held tester function. Check
mode can detect and output DTC by using a hand±held tester to switch the airbag sensor assembly
to the check mode.
A simulation method is used, if the malfunction cannot be reproduced during troubleshooting (the mal-
function is temporarily solved, etc.). In this case, joggling each connector, or driving on a city or rough
road with the airbag sensor assembly in check mode makes it possible to obtain a more accurate mal-
function condition.