seat adjustment TOYOTA SEQUOIA 2001 Service Repair Manual

DICY7±02
DI±1118
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1312 Author: Date:
2005 SEQUOIA (RM1146U)
SUPPLEMENTAL RESTRAINT SYSTEM
PRECAUTION
NOTICE:
When disconnecting the battery terminal, initialize the following system after the terminal is recon-
nected.
System NameSee Page
Back Door Power Window Control SystemBE±77
1. HANDLING PRECAUTIONS FOR AIRBAG SENSOR
HINT:
In this section, the airbag sensor assembly, front airbag sensor LH, front airbag sensor RH, side airbag sen-
sor assembly LH, side airbag sensor assembly RH, curtain shield airbag sensor assembly LH, curtain shield
airbag sensor assembly RH and seat position airbag sensor assembly are collectively referred to as the air-
bag sensor.
(a) Before starting the following operations, wait at least 90 seconds after disconnecting the negative (±)
terminal of the battery:
(1) Replacement of the airbag sensor.
(2) Adjustment of the front/rear doors of the vehicle equipped with the side airbag and curtain shield
airbag (fitting adjustment).
(b) When connecting or disconnecting the airbag sensor connector, ensure that all of the sensors are
installed in the vehicle.
(c) Do not use an airbag sensor which has been dropped during the operation or transportation.
(d) Do not disassemble the airbag sensor.
2. INSPECTION PROCEDURE FOR VEHICLE INVOLVED IN ACCIDENT
(a) When the airbag has not deployed, confirm the DTC by checking the SRS warning light. If there is any
malfunction in the SRS airbag system, perform troubleshooting.
(b) When any of the airbags have deployed, replace the airbag sensor and check the installation condition.
(c) Perform the zero point calibration and sensitivity check under the condition is listed below (see page
DI±1128).

The occupant classification ECU is replaced.

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

The passenger seat removed from the vehicle.

The passenger airbag ON/OFF indicator (ºOFFº) comes on when the passenger seat is not occu-
pied.

The vehicle is brought to the workshop for repair due to an accident or a collision.
NOTICE:
When an accident vehicle is brought into the workshop for repair, check the flatness of the body side
that is installed on the passenger seat. If the flatness is not within ± 3.0 mm (0.118 in.), repair it to
the specified range (within ± 3.0 mm (0.118 in.)).

DIDGK±01
A08841
Hand±held Tester
DLC3
DI±1128
± DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1322 Author: Date:
2005 SEQUOIA (RM1146U)
INITIALIZATION
ZERO POINT CALIBRATION AND SENSITIVITY CHECK
NOTICE:
Make sure that the seat is not occupied before performing
the operation.
HINT:
Perform the zero point calibration and sensitivity check if any of
the following conditions occur.

The occupant classification ECU is replaced.

Accessories (seatback tray and seat cover, etc.) are
installed.

The passenger seat is removed from the vehicle.

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

The vehicle is brought to the workshop for repair due to
an accident or a collision.
Zero point calibration and sensitivity check procedures.
HINT:
Make sure that zero point calibration has finished normally, and
then perform the sensitivity check.
(1) Adjust the seat position according to the table be-
low.
Adjustment ComponentPosition
Slide DirectionRearmost position
Reclining AngleUpright position
Headrest HeightLowest position
Lifter HeightLowest position
(2) Connect the hand±held tester to the DLC3.
(3) Turn the ignition switch to the ON position.
(4) Perform the zero point calibration by following the
prompts on the tester screen shown in 2 pages lat-
er.
HINT:
Refer to the hand±held tester operator's manual for further de-
tails.
OK:
The ºCOMPLETEº is displayed.

DIDE0±01
DI±1504± DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)
1698 Author: Date:
2005 SEQUOIA (RM1146U)
SYSTEM DESCRIPTION
The power seat control system (w/ memory) is equipped with the following functions:

Manual operation of the driver side seat.

Individual seat positions for two different drivers can be stored for the slide±reclining front±verti-
cal 8±way lifter.

Similarly, power mirror positions for two different drivers can be stored. These are stored/restored
with the seat positions.

The above operations are performed using serial communication.

As a safety precaution, the system disallows seat position restoration unless the ignition switch
is ON, and the park/neutral position switch is in the P (park) position.

Manual adjustment of the slide reclining lumbar can be performed even when the ECU is not
functional.
When the power seat control switch is operated, a command signal is sent to the position control ECU. The
position control ECU then activates the appropriate seat motor as needed. This memory system does not
use a seat position sensor. The seat position is detected by counting pulses that are output when the motor
turns. If there is no pulse output from the motor, the motor will stop operating. The ECU is designed so that
a malfunction of the seat memory system will not interfere with manual seat control. The seat memory switch
also sends signals to the position control ECU to memorize a given seat position. The seat memory switch
is later used to send signals to the position control ECU to return to one of the memorized positions.

DI±1506± DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)
1700 Author: Date:
2005 SEQUOIA (RM1146U)
6 Problem Symptoms Table (See page DI±1508)
NEXT
7 Identification of Problem
NEXT
8 Adjustment, Repair or Replace
NEXT
9 Confirmation Test
NEXT
End

DIDE6±01
DI±1514± DIAGNOSTICSPOWER SEAT CONTROL SYSTEM (w/ Driving Position
Memory)
1708 Author: Date:
2005 SEQUOIA (RM1146U)
CIRCUIT INSPECTION
ECU power source circuit
CIRCUIT DESCRIPTION
The position control ECU is contained in the switch assy.
During manual operation, only one switch signal is accepted. If signals are input from 2 or more switches
simultaneously, all of them are ignored. However, when signals are input from only the front vertical switch
and lifter switch simultaneously, the signal from the lifter switch is accepted.
During automatic operation, a manual switch input overrides any other operations, i.e. automatic operations
stop and the manual input operation is accepted. For example, if a manual switch input is activated, during
a seat store/restore operation, the previous operation will cease and manual operation will be performed.
After the manual operation is performed, the previous automatic operation will not resume. Power mirror
store/restore operation is unaffected by manual switch inputs.
The position control ECU & switch assy disallows the restore operation of the power seat when the system
detects that the voltage of terminal SYSB is less than 8 V for 0.3 seconds or is more than 10 V for 30 seconds.
This circuit is a power source circuit of the position control ECU & switch assy.
HINT:
Manual adjustment of the slide reclining lumbar can be performed even when the ECU is not functional if
current is allowed to flow into terminals +B and SYSB.
Lumbar operation can always be performed.

DIDAV±01
± DIAGNOSTICSREAR SEAT ENTERTAINMANT SYSTEM
DI±2081
2275 Author: Date:
2005 SEQUOIA (RM1146U)
SYSTEM DESCRIPTION
1. Outline

As a unique feature of Rear Seat Entertainment (RSE) system, the front and rear seat occupants can
enjoy different audio±visual modes at the same time. Thus, this system offers enhanced entertainment
to the rear seat occupants.

The rear seat occupants can control the audio±visual modes with the remote controller (switch assy),
and listen to audio by using wired or wireless headphones.

The RSE system is controlled by the multi±display controller, and the communication among the audio
head unit, rear display assembly, and DVD player is established via an AVC±LAN (Audio Visual Com-
munication±Local Area Network).
2. Function of Main Component
Television Display Assy

Displays DVD and video images in accordance with video signals from the RSE ECU.

Receives signals from the remote controller and outputs them to the RSE ECU.

Outputs audio signals to the wireless headphones in the form of infrared signals.

Displays the audio±visual control screen.

Displays the adjustment screen.

Displays the diagnosis screen.

The diagnosis screen appears when the diagnosis mode is started on the audio head unit.
Audio Head Unit
w/ Navigation system:
Radio and navigation assy
w/o Navigation system:
Radio receiver assy

Outputs audio signals to the RSE ECU and the stereo component amplifier.

Outputs a request to the RSE ECU to start the diagnosis mode.
RSE ECU (Multi±display Controller)

Processes video and audio signals from the DVD player and video player and audio signals from the
audio head unit, and outputs them to the television display assembly and headphone terminals.

Controls the distribution of the audio±visual mode to the front (audio head unit) and the rear (RSE).
Remote Controller (Switch Assy)Outputs various control signals of the RSE system to the television display assembly in the form of in-
frared signals.
Wireless Headphone

Receives the audio signals from the television display assembly in the form of infrared signals.

Volume adjustment of the wireless headphone can be done by using the volume equipped on the wire-
less headphone.
Headphone Terminal
Outputs audio signals to the wired headphones that are connected.

Adjusts the volume of the wired headphones in accordance with volume control.
VTR TerminalThis terminal is for connecting the video player's video and audio output terminals.

BO45R±01
H16668
H16669
BO2556
± BODYREAR DOOR
BO±23
3576 Author: Date:
2005 SEQUOIA (RM1146U)
ADJUSTMENT
1. ADJUST DOOR IN FORWARD/ REARWARD AND VER-
TICAL DIRECTIONS
(a) Remove the front and rear door scuff plates.
(b) Remove the center pillar lower garnish.
(c) Remove the front seat outer belt (See page BO±101).
(d) Loosen the body side hinge nuts to adjust.
Torque: 23 N´m (230 kgf´cm, 17 ft´lbf)
(e) Install the front seat outer belt and center pillar lower gar-
nish (See page BO±101).
(f) Install the front and rear door scuff plates.
2. ADJUST DOOR IN LEFT/RIGHT AND VERTICAL
DIRECTIONS
Loosen the door side hinge bolts to adjust.
Torque: 23 N´m (230 kgf´cm, 17 ft´lbf)
3. ADJUST DOOR LOCK STRIKER
(a) Check that the door fit and door lock linkages are adjusted
correctly.
(b) Loosen the striker mounting screws to adjust.
Torque: 23 N´m (230 kgf´cm, 17 ft´lbf)
(c) Using a plastic hammer, tap the striker to adjust it.

05_SEQUOIA_U (L/O 0408)
45
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
Front passenger seat
CAUTION
The SRS front passenger airbag also
deploys with considerable force, and
can cause death or serious injury es-
pecially if the front passenger is very
close to the airbag. The front passen-
ger seat should be as far from the
airbag as possible with the seatback
adjusted, so the front passenger sits
upright.
Front seats (with SRS side airbags)
CAUTION
The SRS side airbags are installed in
the driver and front passenger seats.
Observe the following precautions.

Do not lean against the front door
when the vehicle is in use, since
the side airbag inflates with consid-
erable speed and force. Otherwise,
you may be killed or seriously in-
jured.

Do not use seat accessories which
cover the area where the side air-
bags inflate. Such accessories may
prevent the side airbags from acti-
vating correctly, causing death or
serious injury.

Do not modify or replace the seats
or upholstery of the seats equipped
with side airbags. Such change may
prevent the side airbag system from
activating correctly, disable the sys-
tem or cause the side airbag sys-
tem to inflate accidentally, resulting
in death or serious injury.
CAUTION

Do not adjust the seat while the
vehicle is moving as the seat may
unexpectedly move and cause the
driver to lose control of the vehicle.

Be careful that the seat does not
hit a passenger or luggage.

After adjusting the seat position, re-
lease the lever and try sliding the
seat forward and backward to make
sure it is locked in position.

After adjusting the seatback, push
your body back against the seat to
make sure the seat is locked in
position.

Do not put objects under the seats.
Otherwise, the objects may interfere
with the seat±lock mechanism or
unexpectedly push up the seat posi-
tion adjusting lever and the seat
may suddenly move, causing the
driver to lose control of the vehicle.
ÐSeat adjustment precautions

05_SEQUOIA_U (L/O 0408)
48
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
CAUTION
Avoid reclining the seatback any
more than needed. The seat belts pro-
vide maximum protection in a frontal
or rear collision when the driver and
the front passenger are sitting up
straight and well back in the seats. If
you are reclined, the lap belt may
slide past your hips and apply re-
straint forces directly to the abdomen
or your neck may contact the shoul-
der belt. In the event of a frontal
collision, the more the seat is re-
clined, the greater the risk of death
or personal injury.
3. SEAT LUMBAR SUPPORT
ADJUSTING SWITCH
Push the control switch in the desired
direction.
The amount of lumber support will change
while the switch is pushed.
Vehicles with the driving position memory
systemÐThe position of the driver's seat
and outside rear view mirrors can be
memorized. For details, see ªDriving posi-
tion memory systemº on page 71 in this
Section.
CAUTION

Adjustment should not be made
while the vehicle is moving.

When adjusting the seat, be careful
not to hit the seat against a pas-
senger or luggage.

Third seats only: Adjust both seat
cushions to the same position and
align both seatbacks at the same
angle when a person sits in the
third seat center position. Other-
wise, the person cannot wear the
seat belt properly and this may
cause serious injuries in a collision.

When folding up the third seats, do
not fold down or up the second
seats.

After adjusting the seat position, re-
lease the lever and try sliding the
seat forward and backward to make
sure it is lock in position.

After adjusting the seatback, push
your body back against the seat to
make sure the seat is locked in
position.

Do not allow sitting on top of a
folded±down seatback, or in the
luggage compartment while driving.
Persons not properly seated and/or
properly restrained by seat belts
can be severely injured in the event
of emergency braking or a collision.

Do not operate any equipment in
the luggage compartment while
driving. People not properly seated
and/or properly restrained by seat
belts can be severely injured in the
event of emergency braking or a
collision.

Do not load luggage with only the
seatback folded down. Do not fail
to swing the whole seat up in such
a case. Luggage sliding forward
during braking may cause an acci-
dent or severe injury.
Rear seatsÐ
ÐRear seat precautions

05_SEQUOIA_U (L/O 0408)
72
2005 SEQUOIA from Aug. '04 Prod. (OM34424U)
RECALLING THE MEMORIZED POSITION
When you push button ª1º or ª2º, a
beep will sound and the driving posi-
tion will be automatically adjusted to
the position recorded for that button.
The memorized position can be recalled
under the following conditions:

The ignition key is in the ªON position
and the shift lever is in the ªPº posi-
tion.

The key is not in the ignition switch
and less than 30 seconds have passed
since opening the driver 's door.To stop the operation, push any driving
position memory button.
To reactivate the system, push the button
ª1º or ª2º again.
If the vehicle's battery is disconnected,
the memory will be erased and the posi-
tions will have to be set again.
CAUTION

Do not start the vehicle while the
adjustment are being made.

Take care not to select the wrong
button, or the seat could strike the
rear passenger or hit your body
against the steering wheel. If this
happens, you can stop the move-
ment by pressing another driving
position memory switch, or de-
pressing the brake pedal.
Toyota strongly urges that the driver and
passengers in the vehicle be properly re-
strained at all times with the seat belts
provided. Failure to do so could increase
the chance of injury and/or the severity of
injury in accidents.
The seat belts provided for your vehicle
are designed for people of adult size,
large enough to properly wear them.
Child. Use a child restraint system ap-
propriate for the child until the child be-
comes large enough to properly wear the
vehicle's seat belts. See ªChild restraintº
on page 107 in this Section for details.
If a child is too large for a child restraint
system, the child should sit in the rear
seat and must be restrained using the
vehicle's seat belt. According to accident
statistics, the child is safer when properly
restrained in the rear seat than in the
front seat.
If a child must sit in the front seat, the
seat belts should be worn properly. If an
accident occurs and the seat belts are not
worn properly, the force of the rapid infla-
tion of the airbag may cause death or
serious injury to the child.
Seat beltsÐ
ÐSeat belt precautions