check engine TOYOTA HIGHLANDER 2001 Service User Guide

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If engine speed does not increase when
the accelerator pedal is depressed, there
may be a problem somewhere in the elec-
tronic throttle control system.
At this time, vibration may occur. Howev-
er, if you depress the accelerator pedal
more firmly and slowly, you can drive your
vehicle at low speeds. Have your vehicle
checked by your Toyota dealer as soon as
possible.
Even if the abnormality of the electronic
throttle control system is corrected during
low speed driving, the system may not be
recovered until the engine is stopped and
the ignition key is turned to ACCº or
LOCKº position.
CAUTION
Be especially careful to prevent erro-
neous pedal operation.
If your engine coolant temperature
gauge indicates overheating, if you ex-
perience a loss of power, or if you hear
a loud knocking or pinging noise, the
engine has probably overheated. You
should follow this procedure...
1. Pull safely off the road, stop the ve-
hicle and turn on your emergency
flashers. Put the transmission in Pº
and apply the parking brake. Turn off
the air conditioning if it is being used.
2. If coolant or steam is boiling out of the
radiator or reservoir, stop the engine.
Wait until the steam subsides before
opening the hood. If there is no coolant
boiling over or steam, leave the engine
running and make sure the electric
cooling fan is operating. If it is not,
turn the ignition off.
CAUTION
To help avoid personal injury, keep
the hood closed until there is no
steam. Escaping steam or coolant is
a sign of very high pressure.
3. Look for obvious coolant leaks from the
radiator, hoses, and under the vehicle.
However, note that water draining from
the air conditioning is normal if it has
been used.
CAUTION
When the engine is running, keep
hands and clothing away from the
moving fan and engine drive belts.
4. If the coolant is leaking, stop the en-
gine immediately. Call a Toyota dealer
for assistance.
5. If there are no obvious leaks, check
the coolant reservoir. If it is dry, add
coolant to the reservoir while the en-
gine is running. Fill it about half full.
For the coolant type, see Coolant type
selectionº on page 383 in Section 7- 2.
CAUTION
Do not attempt to remove the radiator
cap when the engine and radiator are
hot. Serious injury could result from
scalding hot fluid and steam blown
out under pressure.
If you cannot increase engine
speedIf your vehicle overheats

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6. After the engine coolant temperature
has cooled to normal, again check the
coolant level in the reservoir. If neces-
sary, bring it up to half full again. Seri-
ous coolant loss indicates a leak in the
system. You should have it checked as
soon as possible at your Toyota dealer.1. Reduce your speed gradually,
keeping a straight line. Move cau-
tiously off the road to a safe place
well away from the traffic. Avoid
stopping on the center divider of
a highway. Park on a level spot
with firm ground.
2. Stop the engine and turn on your
emergency flashers.
3. Firmly set the parking brake and
put the transmission in Pº.
4. Have everyone get out of the ve-
hicle on the side away from traffic.
5. Read the following instructions
thoroughly.CAUTION
When jacking, be sure to observe
the following to reduce the possi-
bility of personal injury:

Follow jacking instructions.

Do not put any part of your
body under the vehicle sup-
ported by the jack. Otherwise,
personal injury may occur.

Do not start or run the engine
while your vehicle is supported
by the jack.

Stop the vehicle on a level firm
ground, firmly set the parking
brake and put the transmission
in Pº. Block the wheel diago-
nally opposite to the one being
changed if necessary.
If you have a flat tireÐ

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The following methods are effective to get
out when your vehicle is struck in mud,
sand or other condition from which the
vehicle cannot be driven out under its own
power. Use extreme caution when towing
vehicles. In addition, keep away from the
vehicles and towing cable or chain when
towing.

Remove the soil and sand in the front
and the back of the tires.

Place a stone or wood under the tires.
If you cannot shift the selector lever
out of the Pº position to other posi-
tions even though the brake pedal is
depressed, use the shift lock override
button as follows:
1. Turn the ignition key to the LOCKº
position. Make sure the parking
brake is applied.
2. Pry up the cover with a flat- bladed
screwdriver or equivalent.3. Insert your finger into the hole to
push down the shift lock override
button. You can shift out of the Pº
position only while pushing the but-
ton.
4. Shift into the Nº position.
5. Insert the cover.
6. Start the engine. For your safety,
keep the brake pedal depressed.
Be sure to have the system checked by
your Toyota dealer as soon as possible.
ÐTips for towing a stuck
vehicleIf you cannot shift automatic
transmission selector lever

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Check the interior of your vehicle. Wa-
ter and dirt can accumulate under the
floor mats and could cause corrosion. Oc-
casionally check under the mats to make
sure the area is dry. Be particularly care-
ful when transporting chemicals, cleans-
ers, fertilizers, salt, etc.; these should be
transported in proper containers. If a spill
or leak should occur, immediately clean
and dry the area.
Use mud shields on your wheels. If you
drive on salted or gravel roads, mud
shields help protect your vehicle. Full- size
shields, which come as near to the ground
as possible, are the best. We recommend
that the fittings and the area where the
shields are installed be treated to resist
corrosion. Your Toyota dealer will be
happy to assist in supplying and installing
the shields if they are recommended for
your area.
Keep your vehicle in a well ventilated
garage or a roofed place. Do not park
your vehicle in a damp, poorly venti-
lated garage. If you wash your vehicle in
the garage, or if you drive it covered with
water or snow, your garage may be so
damp as to cause corrosion. Even if your
garage is heated, a wet vehicle can cor-
rode if the ventilation is poor.Washing your Toyota
Keep your vehicle clean by regular
washing.
The following cases may cause weakness
to the paint or corrosion to the body and
parts. Wash your vehicle as soon as pos-
sible.

When driving in a coastal area

When driving on a road sprinkled with
antifreeze

When exposed to coal tar, tree sap,
bird droppings and carcass of an insect

When driving in areas where there is
a lot of smoke, soot, dust, iron dust or
chemical substances

When the vehicle becomes remarkably
dirty with dust and mud
Hand- washing your Toyota
Work in the shade and wait until the
vehicle body is not hot to the touch.
CAUTION
When cleaning under floor or chassis,
be careful not to injure your hands.
1. Rinse off loose dirt with a hose. Re-
move any mud or road salt from the
underside of the vehicle or in the
wheel wells.
2. Wash with a mild car- wash soap,
mixed according to the manufacturer 's
instructions. Use a soft cotton mitt and
keep it wet by dipping it frequently into
the wash water. Do not rub hardÐlet
the soap and water remove the dirt.
Fuel filler door: Do not apply water (high-
pressure car wash, for example) at or
near the fuel tank inlet with the fuel filler
door opened. If the water enters the air
vent, you may experience trouble with re-
fueling or rough engine idling.
Plastic wheel ornaments: The plastic
wheel ornaments are damaged easily by
organic substances. If any organic sub-
stances splashes an ornament, be sure to
wash it off with water and check if the
ornament is damaged.
CAUTION
Do not attach the heavily damaged
plastic wheel ornament. It may fly off
the wheel and cause accidents while
the vehicle is moving.
Washing and waxing your
To y o t a

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If you are a skilled do- it- yourself mechan-
ic, the Toyota service manuals are recom-
mended. Please be aware that do- it- your-
self maintenance can affect your warranty
coverage. See Owner 's Warranty Informa-
tion Bookletº or Owner 's Manual Supple-
mentº for the details.Listed below are the general maintenance
items that should be performed as fre-
quently as specified. In addition to check-
ing the items listed, if you notice any
unusual noise, smell or vibration, you
should investigate the cause or take your
vehicle to your Toyota dealer or a quali-
fied service shop immediately. It is recom-
mended that any problem you notice be
brought to the attention of your dealer or
the qualified service shop for their advice.
CAUTION
Make these checks only with ade-
quate ventilation if you run the en-
gine.
IN THE ENGINE COMPARTMENT
Items listed below should be checked
from time to time, e.g. each time when
refueling.
Washer fluid
Make sure there is sufficient fluid in the
tank. See page 399 in Section 7- 3 for
additional information.Engine coolant level
Make sure the coolant level is between
the Fº and Lº lines on the see- through
reservoir when the engine is cold. See
page 383 in Section 7- 2 for additional
information.
Radiator, condenser and hoses
Check that the front of the radiator and
condenser are clean and not blocked with
leaves, dirt or insects. See page 384 in
Section 7- 2 for additional information.
Battery electrolyte level
Your Toyota has a maintenance free bat-
tery. You do not have to add distilled wa-
ter. For longer life of the battery, however,
see page 396 for additional information.
Brake fluid level
Make sure the brake fluid level is correct.
See page 384 in Section 7- 2 for addition-
al information.
Engine oil level
Check the level on the dipstick with the
engine turned off and the vehicle parked
on a level spot. See page 380 in Section
7- 2 for additional information.
General maintenance

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Power steering fluid level
Check the level through the reservoir. The
level should be in the HOTº or COLDº
range depending on the fluid temperature.
See page 385 in Section 7- 2 for addition-
al information.
Exhaust system
If you notice any change in the sound of
the exhaust or smell exhaust fumes, have
the cause located and corrected immedi-
ately. (See Engine exhaust cautionsº on
page 295 in Section 2.)
INSIDE THE VEHICLE
Items listed below should be checked
regularly, e.g. while performing periodic
services, cleaning the vehicle, etc.
Lights
Make sure the headlights, stop lights, tail
lights, turn signal lights, and other lights
are all working. Check headlight aim.
Service reminder indicators and warning
buzzers
Check that all service reminder indicators
and warning buzzers function properly.
Steering wheel
Check that it has the specified free play.
Be alert for changes in steering condition,
such as hard steering or strange noise.Seats
Check that all seat controls such as seat
adjusters, seatback recliner, etc. operate
smoothly and that all latches lock securely
in any position. Check that the head re-
straints move up and down smoothly and
that the locks hold securely in any latched
position. For folding- down rear seatbacks,
check that the latches lock securely.
Seat belts
Check that the seat belt system such as
buckles, retractors and anchors operate
properly and smoothly. Make sure the belt
webbing is not cut, frayed, worn or dam-
aged.
Accelerator pedal
Check the pedal for smooth operation and
uneven pedal effort or catching.
Brake pedal
Check the pedal for smooth operation and
that the pedal has the proper clearance.
Check the brake booster function.
Brakes
In a safe place, check that the brakes do
not pull to one side when applied.Parking brake
Check that the pedal has the proper travel
and that, on a safe incline, your vehicle
is held securely with only the parking
brake applied.
Automatic transmission Parkº mecha-
nism
Check the lock release button of the se-
lector lever for proper and smooth opera-
tion. On a safe incline, check that your
vehicle is held securely with the selector
lever in Pº position and all brakes re-
leased.
OUTSIDE THE VEHICLE
Items listed below should be performed
from time to time, unless otherwise
specified.
Fluid leaks
Check underneath for leaking fuel, oil, wa-
ter or other fluid after the vehicle has
been parked for a while. If you smell fuel
fumes or notice any leak, have the cause
found and corrected immediately.
Doors and engine hood
Check that all side doors and back door
operate smoothly and all latches lock se-
curely. Make sure the engine hood sec-
ondary latch secures the hood from open-
ing when the primary latch is released.

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Tire inflation pressure
Check the pressure with a gauge ev-
ery two weeks, or at least once a
month. See page 385 in Section 7- 2
for additional information.
Tire surface and wheel nuts
Check the tires carefully for cuts,
damage or excessive wear. See page
388 in Section 7- 2 for additional in-
formation. When checking the tires,
make sure no nuts are missing, and
check the nuts for looseness. Tighten
them if necessary.
Tire rotation
Rotate the tires according to the
maintenance schedule. (For sched-
uled maintenance information, please
refer to the Scheduled Maintenance
Guideº or Owner 's Manual Supple-
mentº.) See page 390 in Section 7- 2
for additional information.Be on the alert for changes in perfor-
mance, sounds, and visual tip- offs that
indicate service is needed. Some impor-
tant clues are as follows:

Engine missing, stumbling, or pinging

Appreciable loss of power

Strange engine noises

A leak under the vehicle (however, wa-
ter dripping from the air conditioning
after use is normal.)

Change in exhaust sound (This may
indicate a dangerous carbon monoxide
leak. Drive with the windows open and
have the exhaust system checked im-
mediately.)

Flat- looking tire; excessive tire squeal
when cornering; uneven tire wear

Vehicle pulls to one side when driving
straight on a level road

Strange noises related to suspension
movement

Loss of brake effectiveness; spongy
feeling brake pedal; pedal almost
touches floor; vehicle pulls to one side
when braking

Engine coolant temperature continually
higher than normalIf you notice any of these clues, take your
vehicle to your Toyota dealer as soon as
possible. It probably needs adjustment or
repair.
CAUTION
Do not continue driving with the ve-
hicle unchecked. It could result in se-
rious vehicle damage and possibly
personal injury.
Does your vehicle need
repairing?

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Recommended oil viscosity:
SAE 5W- 30
Outside temperature
Please contact your Toyota dealer for fur-
ther details.COOLING SYSTEM
Total capacity, L (qt., Imp. qt.):
2AZ- FE engine
With rear heater 7.7 (8.1, 6.8)
8.5 (9.0, 7.5)
*
Without rear heater
6.3 (6.7, 5.5)
7.1 (7.5, 6.2)
*
3MZ- FE engine
With rear heater 10.7 (11.3, 9.4)
11.4 (12.0, 10.0)
*
Without rear heater
9.4 (9.9, 8.3)
10.1 (10.7, 8.9)
*
*
: Vehicles with towing package
Coolant type:
Toyota Super Long Life Coolantº is
used in your Toyota vehicle at factory
fill. In order to avoid technical problems,
only use Toyota Super Long Life
Coolantº or similar high quality ethylene
glycol based non- silicate, non- amine,
non- nitrite, and non- borate coolant with
long- life hybrid organic acid technology.
(Coolant with long- life hybrid organic
acid technology is a combination of low
phosphates and organic acids.)
Do not use plain water alone.Please contact your Toyota dealer for
further details.
BATTERY
Open voltage
* at 20
C (68
F):
12.6Ð12.8V Fully charged
12.2Ð12.4V Half charged
11.8Ð12.0V Discharged
*: Voltage that is checked 20 minutes af-
ter the key is removed with all the lights
turned off
Charging rates:
5 A max.
AUTOMATIC TRANSAXLE
Fluid capacity (drain and refill), L (qt.,
Imp. qt.):
Up to 3.5 (3.7, 3.1)
Fluid type:
Toyota Genuine ATF Type T- IV
Change automatic transmission fluid only
as necessary.

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Engine compartment
Tires
Ti r e siz eTi r e inf lat ion pr es s ur e
Front Rear
P225/70R16 101S
225/65R17 101S210 (2.1, 30) 210 (2.1, 30)
210 (2.1, 30) 210 (2.1, 30)Wheel size
16
6 1/2 JJ
17
6 1/ 2 JJ
When driving under the above load condition at sustained high speeds above
160 km/h (100 mph), in countries where such speeds are permitted by- low,
inflate the front and rear tires to the following tire inflation pressure provided
that it does not exceed the maximum cold tire inflation pressure molded
on the tire sidewall.
P225/70R16 101S tires 240 kPa (2.4 kgf/cm
2
or bar, 35 psi)
225/65R17 101S tires 230 kPa (2.3 kgf/cm2
or bar, 33 psi)
Wheel nut torque, N
´m (kgf´m, ft´lbf):
103 (10.5, 76)
NOTE: For a complete information on tires (e.g. replacing tires or replacing
wheels), see Checking tire inflation pressureº through Aluminum
wheel precautionsº, pages 385 through 393, in Section 7- 2. Tire size and cold tire inflation pressure:
kPa (kgf/cm
2
or bar, psi)
Fuses

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3. Hold the hood open by inserting the
support rod into the slot.
Before closing the hood, check to see that
you have not forgotten any tools, rags,
etc. and return the support rod to its
clipÐthis prevents rattles. Then lower the
hood and make sure it locks into place.
If necessary, press down gently on the
front edge to lock it.
CAUTION
After inserting the support rod into
the slot, make sure the rod supports
the hood securely from falling down
on to your head or body.
To deter vehicle theft, the system is
designed to sound an alarm if any of
the side doors, back door or hood is
forcibly unlocked or the battery termi-
nal is disconnected and then recon-
nected when the system is set.
The alarm blows the horn intermittently
and flashes the headlights, tail lights and
turn signal lights, and turns on the interior
light.SETTING THE SYSTEM
1. Turn the ignition key to the LOCKº
position and remove it.
The indicator light will start flashing when
the key is removed from the ignition
switch. (See Engine immobilizer systemº
on page 17 in this Section for details.)
2. Have all passengers get out of the
vehicle.
3. Close and lock all the side doors, back
door and hood.
The indicator light will remain on when all
the side doors, back door and hood are
closed and locked.
Theft deterrent system