engine TOYOTA SIENNA 2004 XL20 / 2.G Service Manual

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2004 SIENNA from Aug. ’04 Prod. (OM45422U)
This power outlet is designed for use as
a power supply for the audio device con-
nected to the input terminal adapter.
The key must be in the “ON” position for
the power outlet to be used.
The maximum capacity for this power out-
let is 115 VAC/100W. If you attempt to
use an appliance that requires more than
115 VAC or 100W, the protection circuit
will activate and cut the power supply.
The power supply will restart automatically
when you use an appliance that operates
within the 115 VAC/100W limits.Main switch
To use the power outlet, push the main
switch on the instrument panel.
An indicator light will illuminate to indicate
that the power outlet is ready for use.
Push the main switch once again to turn
the power outlet off. When the power out-
let is not in use, make sure that the main
switch is turned off.
NOTICE
To prevent the battery from being
discharged, do not use the power
outlet longer than necessary when
the engine is not running.
 Close the power outlet lid when the
power outlet is not in use. Inserting
a foreign object other than the ap-
propriate plug that fits the outlet
may cause electrical failure or short
circuit.
The power outlet is not designed for
the following electric appliances even if
their power consumption is under 115
VAC/100W. These appliances may not
operate properly.
Appliances with high initial peak watt-
age: cathode− ray tube type televisions,
compressor −driven refrigerators, electric
pumps, electric tools, etc.
Measuring devices which process pre-
cise data: medical equipment, measur-
ing instruments, etc.
—Power outlet

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The outside temperature and cruise in-
formation display indicates the follow-
ing information.1. Outside temperature
2. Average fuel consumption
3. Instantaneous fuel consumption
4. Distance to empty
5. Display off (no compass)
Every time you push the “MODE” button,
the display toggles through this informa-
tion.
During the off mode, the compass display
is also turned off.
The displayed values in the cruise infor-
mation display indicate general driving
conditions. Accuracy varies with driving
habits and road conditions.
To set the unit, push the “E/M” button
until the desired unit display appears. (At
this time, front and rear air conditioning
displays also change.) 1. Outside temperature
The outside temperature display indi-
cates the outside air temperature.
The displayed value is updated every 1
second.
The displayed temperature ranges from
− 30 C ( −22 F) up to 50 C (122 F).
If there is some abnormality in the con-
nection of the outside air temperature sen-
sor, “ −−C” (“ −−F”) will appear on the
display. If “ −−C” (“ −−F”) appears on the
display, contact your Toyota dealer.
There may be a case that “−− C” (“ −−F”)
appears momentarily when the ignition is
quickly turned to “ON”. It is normal if it
goes out soon.
2. Average fuel consumption (“AVG”)
Average fuel consumption is calculated
and displayed based on total driving
distance and total fuel consumption
with the engine running.
The displayed value is updated every 1
seconds.
To reset the calculations, return the mode
to “AVG” and push and hold the “MODE”
and “E/M” button simultaneously for 2 sec-
onds. 3. Instantaneous fuel consumption
(“INST”)
The instantaneous fuel consumption is
calculated and displayed based on dis-
tance and fuel consumption for 1 sec-
onds with the engine running.
The displayed value is updated every 2
seconds.
Note that an accurate figure may not be
shown in the following cases.
When the vehicle is stopped with the
engine running, the display will indicate
the extremely high fuel consumption.
When the vehicle is driving down a
long slope, applying the engine brake,
the display will indicate the extremely
low fuel consumption.
The calculation is reset when the ignition
switch is turned off. 4. Distance to empty (“DTE”)
The distance the vehicle can travel with
the remaining fuel is calculated and
displayed based on the quantity of re-
maining fuel and past fuel consumption.
The displayed value is updated every 1
second.

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In the following cases, the system may
not work properly.
When ice, snow, mud or other objects
build up on the sensor.
When the vehicle is parked in extreme-
ly high or extremely low temperature
for a long period.
When driving on bumpy or graveled
roads or on grass
When a device such as a horn from
another vehicle, motorcycle engine, or
an air brake sound from a heavy −duty
vehicle, issues ultrasonic waves, near
your vehicle
When attaching a two −way radio anten-
na
When rain or water splashes on the
sensor.
When operating the vehicle on an in-
clined surface
When a radio antenna or fender pole
is mounted on your vehicle.
When a towing hitch is mounted on
your vehicle. The system may not detect the follow-
ing.
Thin objects such as a wire or rope
Objects with a surface area too small
to reflect ultrasonic waves such as
wire gauze
Sound wave absorbing objects or mate-
rial such as cotton or snow
A person near the vehicle (depending
on the type of clothes worn)
Objects with a sharp edge
Small or short objects
Tall objects with an upper part project-
ing toward the vehicle
Objects just under the bumper
Objects very close to your vehicle
In the following cases, have your
Toyota dealer check the system.
When the bumper is damaged.
When the indicator is continuously on.
1: Rear sensors
2: Rear corner sensors
The Toyota park assist system is de-
signed to inform you of the approxi-
mate distance between your vehicle and
an obstruction by indicator and buzzer
while driving at approximate 10 km/h (6
mph) or less when parking the vehicle.
This system uses sensors to detect ob-
structions.
This system works when the ignition key
is at the “ON” position and the transmis-
sion is in the “R” position.
The sensors work only when the transmis-
sion is in the “R” position.
Toyota park assist system
(type B)

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CAUTION
The Toyota park assist system is
intended as an aid to assist you to
park and is not a substitute for
your personal judgment. Make your
driving decisions based on your ob-
servations.
Do not attach accessories or other
objects to the vehicle within the
sensor perceptible area. Doing so
may cause the system to malfunc-
tion, which might result in an acci-
dent.
In certain situations, the system
will not function properly and when
the vehicle approaches certain ob-
jects, the system will not detect
those objects. Therefore, always ob-
serve the area around the vehicle
and do not rely solely on the sys-
tem.
For vehicles sold in Canada
This ISM device compiles with Cana-
dian ICES001.
In the following cases, the system may
not work properly.
When ice, snow, mud or other objects
build up on the sensor.
When the vehicle is parked in extreme-
ly high or extremely low temperature
for a long period.
When driving on bumpy or graveled
roads or on grass
When a device such as a horn from
another vehicle, motorcycle engine, or
an air brake sound from a heavy −duty
vehicle, issues ultrasonic waves, near
your vehicle
When attaching a two −way radio anten-
na
When rain or water splashes on the
sensor.
When operating the vehicle on an in-
clined surface
When a radio antenna or fender pole
is mounted on your vehicle.
When a towing hitch is mounted on
your vehicle.

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If a bright light (for example, sunlight re-
flected off the vehicle body) is picked up
by the camera, the smear effect
∗ peculiar
to the camera may occur.
∗: Smear effect—A phenomenon that oc-
curs when a bright light (for example, sun-
light reflected off the vehicle body) is
picked up by the camera; when trans-
mitted by the camera, the light source
appears to have a vertical streak above
and below it.
Front
Rear
The power outlets (12 VDC) are de-
signed for power supply for car acces-
sories.
The key must be in the “ACC” or “ON”
position for the power outlets to be used.
NOTICE
 To prevent the fuse from being
blown, do not use the electricity
over the total vehicle capacity of 12
VDC/120W (front and rear outlets
together).
 To prevent the battery from being
discharged, do not use the power
outlets longer than necessary when
the engine is not running.
 Close the power outlet lids when
the power outlets are not in use.
Inserting anything other than an ap-
propriate plug that fits the outlet,
or allowing any liquid to get into
the outlet may cause electrical fail-
ure or short circuits.
Power outlets (12 VDC)

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NOTICE
To prevent the battery from being
discharged, do not use the power
outlet longer than necessary when
the engine is not running.
 Close the power outlet lids when
the power outlets are not in use.
Inserting anything other than an ap-
propriate plug that fits the outlet,
or allowing any liquid to get into
the outlet may cause electrical fail-
ure or short circuits.
The power outlet is not designed for
the following electric appliances even
though their power consumption is un-
der 115 VAC/100W. These appliances
may not operate properly.
Appliances with high initial peak watt-
age: cathode− ray tube type televisions,
compressor −driven refrigerators, electric
pumps, electric tools, etc.
Measuring devices which process pre-
cise data: medical equipment, measur-
ing instruments, etc.
Other appliances requiring an extremely
stable power supply: microcomputer −
controlled electric blankets, touch sen-
sor lamps, etc. Certain electrical appliances may cause
radio noise.
To use the glove box, do this.
To open: Pull the lever.
To lock: Insert the master key and turn it
clockwise.
CAUTION
To reduce the chance of injury in
case of an accident or a sudden stop,
always keep the glove box door
closed while driving.
Glove box

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INFORMATION BEFORE DRIVING YOUR
TOYOTA
Information before driving your Toyota
Break−in period 366
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Fuel 366
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Fuel pump shut off system 368
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Operation in foreign countries 368
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Three −way catalytic converter 369
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Engine exhaust cautions 370
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Facts about engine oil consumption 370
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Iridium −tipped spark plugs 371
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Brake system 372
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Brake pad wear limit indicators 376
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Your Toyota’s identification 376
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Theft prevention labels 377
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Suspension and chassis 377
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Tire information 378
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Vehicle load limits 388
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Cargo and luggage 389
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Types of tires 392
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SECTION 2

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Drive gently and avoid high speeds.
Your vehicle does not need an elaborate
break−in. But following a few simple tips
for the first 1600 km (1000 miles) can add
to the future economy and long life of
your vehicle:
Avoid full throttle acceleration when
starting and driving.
Avoid racing the engine.
Try to avoid hard stops during the first
300 km (200 miles).
Do not drive for a long time at any
single speed, either fast or slow.
Do not tow a trailer during the first 800
km (500 miles). FUEL TYPE
Your new vehicle must use only un-
leaded gasoline.
To help prevent gas station mix
−ups, your
Toyota has a smaller fuel tank opening.
The special nozzle on pumps with un-
leaded fuel will fit it, but the larger stan-
dard nozzle on pumps with leaded gas will
not.
At a minimum, the gasoline you use
should meet the specifications of ASTM
D4814 in the U.S.A. and CGSB 3.5 −M93
in Canada.NOTICE
Do not use leaded gasoline. Use of
leaded gasoline will cause the three
way catalytic converter to lose its ef-
fectiveness and the emission control
system to function improperly. Also,
this can increase maintenance costs.
OCTANE RATING
Select Octane Rating 87 (Research
Octane Number 91) or higher. For
improved vehicle performance, the use
of premium unleaded gasoline with an
Octane Rating of 91 (Research Octane
Number 96) or higher is recommended.
Use of unleaded gasoline with an octane
rating or research octane number lower
than stated above will cause persistent
heavy knocking. If it is severe, this will
lead to engine damage.
If your engine knocks...
If you detect heavy knocking even when
using the recommended fuel, or if you
hear steady knocking while holding a
steady speed on level roads, consult your
Toyota dealer.
However, occasionally, you may notice
light knocking for a short time while accel-
erating or driving up hills. This is normal
and there is no need for concern.
Breakin period Fuel

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GASOLINE CONTAINING DETERGENT
ADDITIVES
Toyota recommends the use of gasoline
that contains detergent additives to
avoid buildup of engine deposits.
However, all gasoline sold in the U.S.
contains detergent additives to keep clean
and/or clean intake systems.
QUALITY GASOLINE
Automotive manufacturers in the U.S.,
Europe and Japan have developed a
specification for quality fuel named
WorldWide Fuel Charter (WWFC) that
is expected to be applied world wide.
The WWFC consists of four categories
that depend on required emission lev-
els. In the U.S., category 4 has been
adopted. The WWFC improves air quali-
ty by providing for better emissions in
vehicle fleets, and customer satisfaction
through better vehicle performance.CLEANER BURNING GASOLINE
Cleaner burning gasoline, including re-
formulated gasoline that contains oxy-
genates such as ethanol or MTBE is
available in many areas.
Toyota recommends the use of cleaner
burning gasoline and appropriately blended
reformulated gasoline. These types of gas-
oline provide excellent vehicle perfor-
mance, reduce vehicle emissions, and im-
prove air quality.
OXYGENATES IN GASOLINE
Toyota allows the use of oxygenate
blended gasoline where the oxygenate
content is up to 10% ethanol or 15%
MTBE. If you use gasohol in your
Toyota, be sure that it has an octane
rating no lower than 87.
Toyota does not recommend the use of
gasoline containing methanol.
GASOLINE CONTAINING MMT
Some gasoline contain an octane en-
hancing additive called MMT (Methylcy-
clopentadienyl Manganese Tricarbonyl).
Toyota does not recommend the use of
gasoline that contains MMT. If fuel con-
taining MMT is used, your emission con-
trol system may be adversely affected.
The Malfunction Indicator Lamp on the in-
strument cluster may come on. If this hap-
pens, contact your Toyota dealer for ser-
vice.

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GASOLINE QUALITY
In a very few cases, you may experience
driveability problems caused by the partic-
ular gasoline that you are using. If you
continue to have unacceptable driveability,
try changing gasoline brands. If this does
not rectify your problem, then consult your
Toyota dealer.
NOTICE
Do not use gasohol other than
stated above. It will cause fuel sys-
tem damage or vehicle performance
problems.
 If driveab ility problems occur (poor
hot starting, vaporizing, engine
knock, etc.), discontinue the use.
 Take care not to spill gasohol dur-
ing refueling. Gasohol may cause
paint damage.
FUEL TANK CAPACITY
79 L (21 gal., 17.5 Imp. gal.) The fuel pump shut off system stops sup-
plying fuel to the engine to minimize the
risk of fuel leakage when the engine stalls
or an airbag inflates upon collision. To
restart the engine after the fuel pump shut
off system activates, turn the ignition
switch to “ACC” or “LOCK” once and start
it.
CAUTION
Inspect the ground under the vehicle
before restarting the engine. If you
find that liquid has leaked onto the
ground, it is the fuel system has
been damaged and it is in need of
repair. In this case, do not restart the
engine.
If you plan to drive your Toyota in
another country...
First,
comply with the vehicle registration
laws.
Second, confirm the availability of the cor-
rect fuel (unleaded and minimum octane
number).
Fuel pump shut off system Operation in foreign countries