check transmission fluid TOYOTA HIGHLANDER 2001 Service Repair Manual

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Check the condition of the battery and
cables.
Cold temperatures reduce the capacity of
any battery, so it must be in top shape
to provide enough power for winter start-
ing. Section 7- 3 tells you how to visually
inspect the battery. Your Toyota dealer
and most service stations will be pleased
to check the level of charge.
Make sure the engine oil viscosity is
suitable for the cold weather.
See page 380 in Section 7- 2 for recom-
mended viscosity. Leaving a heavy sum-
mer oil in your vehicle during winter
months may cause harder starting. If you
are not sure about which oil to use, call
your Toyota dealerÐthey will be pleased
to help.
Keep the door locks from freezing.
Squirt lock de- icer or glycerine into the
locks to keep them from freezing.
Use a washer fluid containing an anti-
freeze solution.
This product is available at your Toyota
dealer and most auto parts stores. Follow
the manufacturer 's directions for how
much to mix with water.NOTICE
Do not use engine antifreeze or any
other substitute because it may dam-
age your vehicle's paint.
Do not use your parking brake when
there is a possibility it could freeze.
When parking, put the transmission into
Pº and block the rear wheels. Do not use
the parking brake, or snow or water accu-
mulated in and around the parking brake
mechanism may freeze, making it hard to
release.
Keep ice and snow from accumulating
under the fenders.
Ice and snow built up under your fenders
can make steering difficult. During bad
winter driving, stop and check under the
fenders occasionally.
Depending on where you are driving,
we recommend you carry some emer-
gency equipment.
Some of the things you might put in the
vehicle are tire chains, window scraper,
bag of sand or salt, flares, small shovel,
jumper cables, etc.
Your vehicle is not designed to be
dinghy towed (with four wheels on the
ground) behind a motorhome.
NOTICE
Do not tow your vehicle with four
wheels on the ground. This may
cause serious damage to your vehicle.
Dinghy towing

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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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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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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.

Explanation of Maintenance Items
36
The following descriptions are provided to give you a better understanding of
the maintenance items that should be performed on your vehicle. The scheduled
maintenance log indicates at which mileage/time intervals each item should be
performed. Please note that many maintenance items should be performed only
by a qualified technician.
For further information on maintenance items you can perform yourself,
see the “Vehicle Maintenance and Care” and “DoItYourself Maintenance”
sections of your
Owner’s Manual.
Automatic Transmission Fluid or Manual Transmission Oil
Inspect or replace at specified intervals. When performing inspections, check each
component for signs of leakage. If you discover any leakage, have it repaired by a
qualified technician immediately.
Ball Joints and Dust Covers
Check the suspension and steering linkage ball joints for looseness and damage.
Check all dust covers for deterioration and damage. Replace any deteriorated ordamaged parts. Aqualified technician should perform these operations.
Brake Lines and Hoses
Visually inspect for proper installation. Check for chafing, cracks, deterioration
and signs of leakage. Replace any deteriorated or damaged parts. A qualified
technician should perform these operations.
Brake Linings/Drums and Brake Pads/Discs
Check the brake linings (shoes) and drums for scoring, burning, fluid leakage,
broken parts and excessive wear. Check the pads for excessive wear and the
discs for runout, excessive wear and fluid leakage. Replace any deteriorated ordamaged parts. A qualified technician should perform these operations.
Cabin Air Filter
Replace at specified intervals. Driving in heavy traffic, on dirt roads or in urban,
desert or dusty areas may shorten filter’s life. More frequent replacement may
be necessary.
Charcoal Canister (CA, MA and NY vehicles)
Check for internal damage and clogging. If necessary, clean with compressed air
or replace. A qualified technician should perform these operations.

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Be extremely cautious when work-
ing on the battery. It contains poi-
sonous and corrosive sulfuric acid.
NOTICE

Remember that battery and ignition
cable carry high currents or volt-
ages. Be careful of accidentally
causing a short circuit.

Add only Toyota Super Long Life
Coolantº or similar high quality eth-
ylene glycol based non- silicate,
non- amine, non- nitrite, and non- bo-
rate coolant with long- life hybrid
organic acid technology to fill the
radiator. Toyota Super Long Life
Coolantº is a mixture of 50% cool-
ant and 50% deionized water (for
the U.S.A.) or 55% coolant and 45%
deionized water (for Canada).

If you spill some of the coolant, be
sure to wash it off with water to
prevent it from damaging the parts
or paint.

Do not allow dirt or anything else
to fall through the spark plug holes.

Use only spark plugs of the speci-
fied type. Using other types will
cause engine damage, loss of per-
formance or radio noise.

Do not reuse iridium- tipped spark
plugs by cleaning or regapping.

Do not overfill automatic transmis-
sion fluid and power steering fluid,
or the transmission and power
steering could be damaged.

Do not drive with the air cleaner
filter removed, or excessive engine
wear could result. Also backfiring
could cause a fire in the engine
compartment.

Be careful not to scratch the glass
surface with the wiper frame.

When closing the engine hood,
check to see that you have not for-
gotten any tools, rags, etc.
Front
Rear (two- wheel drive models)
Positioning the jack

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Tools:
Funnel (only for adding coolant)
CHECKING BRAKE FLUID
Parts (if level is low):
SAE J1703 or FMVSS No.116 DOT 3
brake fluid
Tools:
Rag or paper towel
Funnel (only for adding fluid)
CHECKING POWER STEERING FLUID
Parts (if level is low):
Automatic transmission fluid
DEXRONII or III
Tools:
Rag or paper towel
Funnel (only for adding fluid)
CHECKING BATTERY CONDITION
Tools:
Warm water
Baking soda
Grease
Conventional wrench
(for terminal clamp bolts)CHECKING AND REPLACING FUSES
Parts (if replacement is necessary):
Fuse with same amperage rating as
original
ADDING WASHER FLUID
Parts:
Water
Washer fluid containing antifreeze
(for winter use)
Tools:
Funnel
REPLACING LIGHT BULBS
Parts:
Bulb with same number and wattage
rating as original (See charts in
Replacing light bulbsº on page 400 in
Section 7- 3.)
Tools:
Screwdriver

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OpenIf hot O.K.
If hot add
If cold add If cold O.K.
Close
Check the fluid level through the reser-
voir. If necessary, add automatic trans-
mission fluid DEXRONII or III.
If the vehicle has been driven around 80
km/h (50 mph) for 20 minutes (a little
more in frigid temperatures), the fluid is
hot (80C or 175F). You may also check
the level when the fluid is cold (about
room temperature, 10CÐ30C or
50FÐ85F) if the engine has not been
run for about five hours.Clean all dirt from the outside of the res-
ervoir tank and look at the fluid level. If
the fluid is cold, the level should be in the
COLDº range. Similarly, if it is hot, the
fluid level should be in the HOTº range.
If the level is at the low side of either
range, add automatic transmission fluid
DEXRONII or III to bring the level within
the range.
To remove the reservoir cap, turn it coun-
terclockwise and lift up. To reinstall it,
turn it clockwise. After replacing the reser-
voir cap, visually check the steering box
case, vane pump and hose connections
for leaks or damage.
CAUTION
The reservoir tank may be hot so be
careful not to burn yourself.
NOTICE
Avoid overfilling, or the power steer-
ing could be damaged.
Checking power steering fluidChecking tire inflation
pressure

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SST
SST
- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)05-891
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: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
HYDRAULIC TEST
1. PERFORM HYDRAULIC TEST
(a) Measure the line pressure.
NOTICE:

Perform the test at the normal operating ATF (Automatic Transmission Fluid) temperature 50
to 80°C (122 to 176°F).

The line pressure test should always be carried out in pairs. One technician should observe
the conditions of wheels or wheel stopper outside the vehicle while the other is doing the test.

Be careful to prevent SST's hose from interfering with the exhaust pipe.
(1) Warm up the ATF.
(2) Remove the test plug on the front side of the trans-
axle case and connect SST.
SST 09992-00095 (09992- 00231, 09992-00271)
(3) Fully apply the parking brake and chock the 4
wheels.
(4) Connect an OBD II scan tool or hand-held tester to
the DLC3.
(5) Start the engine and check idling speed.
(6) Keep your left foot pressing firmly on the brake ped-
al and shift into D position.
(7) Measure the line pressure when the engine is idling.
(8) Depress the accelerator pedal all the way down.
Quickly read the highest line pressure when engine
speed reaches stall speed.
(9) In the same way, do the test in R position.
Specified line pressure:
ConditionD position kPa (kgf / cm2, psi)R position kPa (kgf / cm2, psi)
Idling372 to 412 kPa
(3.8 to 4.2 kgf/cm2, 54 to 60 psi)
672 to 742 kPa
(6.9 to 7.6 kgf/cm2, 97 to 108 psi)
Stall test931 to 1,031 kPa
(9.5 to 10.5 kgf/cm2, 135 to 150 psi)
1,768 to 1,968 kPa
(18.0 to 20.0 kgf/cm2, 256 to 285 psi)
Evaluation:
ProblemPossible cause
If the measured values at all positions are higher
Line pressure control solenoid (SLT) defective

Regulator valve detective
If the measured values at all positions are lower

Line pressure control solenoid (SLT) defective

Regulator valve detective

Oil pump defective

U/D (Underdrive) direct clutch defective
If pressure is low in the D position only
D position circuit fluid leak

Forward clutch defective
If pressure is low in the R position only

R position circuit fluid leak

Direct clutch defective

1st and reverse brake defective

05F2W-05
- DIAGNOSTICSELECTRONIC CONTROLLED AUTOMATIC
TRANSAXLE [ECT] (U241E/U140F)05-889
1079 Author
: Date
:
2005 HIGHLANDER REPAIR MANUAL (RM1144U)
MECHANICAL SYSTEM TESTS
1. PERFORM MECHANICAL SYSTEM TESTS
(a) Measure the stall speed.
The object of this test is to check the overall performance of the transaxle and engine by measuring
the stall speeds in the D and R positions.
NOTICE:

Perform the test at the normal operating ATF (Automatic Transmission Fluid) temperature 50
to 80°C (122 to 176°F).

Do not continuously run this test for longer than 10 seconds.

To ensure safety, do this test in a wide, clear level area which provides good traction.

The stall test should always be carried out in pairs. One technician should observe the condi-
tions of wheels or wheel stoppers outside the vehicle while the other is doing the test.
(1) Chock the 4 wheels.
(2) Connect an OBD II scan tool or hand-held tester to the DLC3.
(3) Fully apply the parking brake.
(4) Keep your left foot pressed firmly on the brake pedal.
(5) Start the engine.
(6) Shift into the D position. Press all the way down on the accelerator pedal with your right foot.
(7) Quickly read the stall speed at this time.
Stall speed: 2,250
150 rpm
(8) Do the same test in the R position.
Stall speed: 2,250
150 rpm
Evaluation:
ProblemPossible cause
(a) Stall engine speed is low in D and R positions

Engine power output may be insufficient

Stator one-way clutch not operating properly
HINT: If the value is less than the specified value by 600 rpm or
more, the torque converter could be faulty.
(b) Stall engine speed is high in D position

Line pressure is too low

Forward clutch slipping

No. 2 one-way clutch not operating properly

U/D (Underdrive) clutch slipping
(c) Stall engine speed is high in R position

Line pressure is too low

Direct clutch slipping

1st and reverse brake slipping

U/D (Underdrive) clutch slipping
(d) Stall engine speed is high in D and R positions

Line pressure is too low

Improper fluid level

U/D (Underdrive) one-way clutch not operating properly