engine TOYOTA HIGHLANDER 2001 Service Owners Manual

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OPERATION OF INSTRUMENTS AND
CONTROLS
Gauges, Meters and Service reminder indicators
Fuel gauge132 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine coolant temperature gauge132 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tachometer133 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Odometer and two trip meters133 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service reminder indicators and warning buzzers135 . . . . . . . . . . . . . .
SECTION 1- 6

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Low fuel level
warning light
The gauge indicates the approximate
quantity of fuel remaining in the tank
when the ignition switch is on.
Nearly fullÐNeedle at Fº
Nearly emptyÐNeedle at Eº
It is a good idea to keep the tank over
1/4 full.
The needle moves when braking, acceler-
ating or making turns. This is caused by
the movement of the fuel in the tank.
If the fuel level approaches Eº or the low
fuel level warning light comes on, fill the
fuel tank as soon as possible.On inclines or curves, due to the move-
ment of fuel in the tank, the fuel gauge
needle may fluctuate or the low fuel level
warning light may come on earlier than
usual.
If the fuel tank is completely empty, the
malfunction indicator lamp comes on. Fill
the fuel tank immediately.
The indicator lamp goes off after driving
several times. If the indicator lamp does
not go off, contact your Toyota dealer as
soon as possible.The gauge indicates the engine coolant
temperature when the ignition switch is
on. The engine operating temperature
will vary with changes in weather and
engine load.
If the needle moves into the red zone,
your engine is too hot. If your vehicle
overheats, stop your vehicle and allow the
engine to cool.
Your vehicle may overheat during severe
operating conditions, such as:

Driving up a long hill on a hot day.

Reducing speed or stopping after high
speed driving.

Idling for a long period with the air
conditioning on in stop- and- go traffic.
Fuel gaugeEngine coolant temperature
gauge

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Towing a trailer.
NOTICE

Do not remove the thermostat in
the engine cooling system as this
may cause the engine to overheat.
The thermostat is designed to con-
trol the flow of coolant to keep the
temperature of the engine within
the specified operating range.

Do not continue driving with an
overheated engine. See If your ve-
hicle overheatsº on page 336 in
Section 4.
The tachometer indicates engine speed
in thousands of rpm (revolutions per
minute). Use it while driving to select
correct shift points and to prevent en-
gine lugging and over- revving.
Driving with the engine running too fast
causes excessive engine wear and poor
fuel economy. Remember, in most cases
the slower the engine speed, the greater
the fuel economy.
NOTICE
Do not let the indicator needle get
into the red zone. This may cause
severe engine damage.
This meter displays the odometer and
two trip meters.
1. OdometerÐShows the total distance
the vehicle has been driven.
2. Two trip metersÐShow two different
distances independently driven since
the last time each trip meter was set
to zero.
You can use one trip meter to calculate
the fuel economy and the other to
measure the distance on each trip. All
trip meter data is cancelled if the elec-
trical power source is disconnected.
Tachometer Odometer and two trip meters

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If the indicator or buzzer comes on...Do this.
(o)Replace engine oil.
(p)Key reminder buzzerRemove key.

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(a) Brake System Warning Light and
Buzzer
This light comes on in the following cases
when the ignition key is in the ONº posi-
tion.

When the parking brake is applied...
This light comes on for a few seconds
when the ignition key is turned to the
ONº position even after the parking brake
is released.
If the vehicles speed rises above 5 km/h
(3 mph) with the parking brake applied, a
buzzer sounds.

When the brake fluid level is low...
CAUTION
It is dangerous to continue driving
normally when the brake fluid level is
low.
Have your vehicle checked at your
Toyota dealer in the following cases:

The light does not come on even if the
parking brake is applied when the igni-
tion key is in the ONº position.

The light does not come on even if the
ignition key is turned on with the park-
ing brake released.A warning light turning on briefly during
operation does not indicate a problem.
CAUTION
If either of the following conditions
occurs, immediately stop your vehicle
at a safe place and contact your
Toyota dealer.

The light does not turn off even
after the parking brake is released
while the engine is running.
In this case, the brakes may not
work properly and your stopping
distance will become longer. De-
press the brake pedal firmly and
bring the vehicle to an immediate
stop.

The brake system warning light re-
mains on together with the ABSº
warning light.
In this case, not only the anti- lock
brake system will fail but also the
vehicle will become extremely un-
stable during braking.
(b) Driver's Seat Belt Reminder Light
and Buzzer
The light and buzzer act as a reminder to
buckle up the driver's seat belt.
Once the ignition key is turned to ONº,
the reminder light flashes and buzzer
sounds if the driver 's seat belt is not fas-
tened. Unless the driver fastens the belt,
the light continues flashing and the buzzer
stops after about 4 to 8 seconds.
(c) Front Passenger 's Seat Belt
Reminder Light
The light acts as a reminder to have the
front passenger buckle up the seat belt.
Once the ignition key is turned to ONº,
the reminder light flashes if a passenger
sits in the front passenger seat and does
not fasten the seat belt.
If luggage or other load is placed on the
front passenger seat, depending on its
weight, the reminder light may flash.
(d) Discharge Warning Light
This light warns that the battery is being
discharged.
If it comes on while you are driving, there
is a problem somewhere in the charging
system.

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The engine ignition will continue to oper-
ate, however, until the battery is dis-
charged. Turn off the air conditioning,
blower, radio, etc., and drive directly to
the nearest Toyota dealer or repair shop.
NOTICE
Do not continue driving if the engine
drive belt is broken or loose.
(e) Low Engine Oil Pressure Warning
Light
This light warns that the engine oil pres-
sure is too low.
If it flickers or stays on while you are
driving, pull off the road to a safe place
and stop the engine immediately. Call a
Toyota dealer or qualified repair shop for
assistance.
The light may occasionally flicker when
the engine is idling or it may come on
briefly after a hard stop. There is no
cause for concern if it then goes out when
the engine is accelerated slightly.
The light may come on when the oil level
is extremely low. It is not designed to
indicate low oil level, and the oil level
must be checked using the level dipstick.
NOTICE
Do not drive the vehicle with the
warning light onÐeven for one block.
It may ruin the engine.
(f) Malfunction Indicator Lamp
This lamp comes on when the ignition
key is turned to the ONº position and
goes off after the engine starts. This
means that the warning light system is
operating properly.
If the lamp remains on, or the lamp
comes on while driving, first check the
followings.

Empty fuel tank
If the fuel tank is empty, refuel immedi-
ately.

Loose fuel tank cap
If the fuel tank cap is loose, securely
tighten it.
These cases are temporary malfunctions.
The malfunction indicator lamp will go off
after taking several driving trips.
If the lamp does not go off even after
several trips, contact your Toyota dealer
as soon as possible.If the fuel tank is not empty or the fuel
tank cap is not loose...

There is a problem somewhere in the
engine, emission control system, elec-
tronic throttle control system, automatic
transmission electrical system or warn-
ing light system itself.
In this case, slow down and have your
vehicle checked/repaired by your Toyota
dealer as soon as possible.
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.

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(i) Open Door Warning Light and Buzz-
er
This light remains on until all the side
doors and back door are completely
closed.
If the vehicle speed rises above 5 km/h
(3 mph) with any door open, a buzzer
sounds.
(j) Automatic Transmission Fluid
Temperature Warning Light
(four- wheel drive models)
This light warns that the automatic trans-
mission fluid temperature is too high.
If this light comes on while you are driv-
ing, slow down and pull off the road. Stop
the vehicle at a safe place and put the
selector lever in Pº. With the engine id-
ling, wait until the light goes off. If the
light goes off, you can start the vehicle
again. If the light does not go off, call a
Toyota dealer or qualified repair shop for
assistance.
NOTICE
Continued driving with the warning
light on may damage the automatic
transmission.
(k) SRS Warning Light
This light will come on when the igni-
tion key is turned to the ONº position.
After about 6 seconds, the light will go
off. This means the systems of the air-
bag and front seat belt pretensioners
are operating properly.
This warning light system monitors the
airbag sensor assembly, front airbag sen-
sors, side and curtain shield airbag sen-
sors, curtain shield airbag sensors, driv-
er 's seat position sensor, driver 's seat belt
buckle switch, front passenger occupant
classification system, AIRBAG ONº indi-
cator light, AIRBAG OFFº indicator light,
front passenger 's seat belt buckle switch,
seat belt pretensioner assemblies, inflat-
ors, warning light, interconnecting wiring
and power sources.
If either of the following conditions occurs,
this indicates a malfunction somewhere in
the parts monitored by the warning light
system. Contact your Toyota dealer as
soon as possible to service the vehicle.

The light does not come on when the
ignition key is turned to the ONº posi-
tion or remains on for more than 6
seconds or flashes.

The light comes on or flashes while
driving.If the light stays on, it indicates that the
SRS driver and front passenger airbag
system and/or front passenger occupant
classification system and AIRBAG ONº
and AIRBAG OFFº indicator lights have a
problem. If the light flashes, the SRS side
airbag system and/or curtain shield airbag
system have a problem.
(l) VSCº Warning Light
This light warns that there is a problem
somewhere in the vehicle stability control
system or traction control system.
The light will come on when the ignition
key is turned to ONº, and will go off after
a few seconds.
If the light comes on while driving, the
system does not work. However, as con-
ventional braking operates when applied,
there is no problem to continue your driv-
ing.
In the following cases, contact your Toyota
dealer:

The warning light does not come on
after the ignition key is turned to ONº.

The warning light remains on after the
ignition key is turned to ONº.

The warning light comes on while driv-
ing.

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Two- wheel drive models onlyÐThe TRAC
OFFº indicator light will come on when the
VSCº warning light comes on even if the
TRAC OFFº switch is not pushed.
(m) Low Tire Pressure Warning Light
This light warns that the tire inflation pres-
sure is critically low. The light comes on
when the ignition key is turned to the
ONº position. It goes off after a few sec-
onds. This indicates that the low tire pres-
sure warning system is functioning proper-
ly.
If the light comes on while driving, adjust
tire inflation pressure to the specified lev-
el. (See Tiresº on page 410 in Section 8.)
After the tire inflation pressure is adjusted,
push the tire pressure warning system re-
set switch for a few seconds and make
sure the warning light goes off. If the light
still remains or blinks once every second,
have the low tire pressure warning system
checked at your Toyota dealer.
If the light blinks twice every second, the
low tire pressure warning system needs to
be initialized.
For details, see Tire pressure warning
systemº on page 161 in Section 1- 7.(n) Low Windshield Washer Fluid Level
Warning Light
The light warns that the windshield washer
fluid level is too low. Add washer fluid at
your earliest opportunity. (For instructions,
see Adding washer fluidº on page 399 in
Section 7- 3.)
(o) Engine Oil Replacement Reminder
Light (for vehicles sold in U.S.A.)
This light acts as a reminder to replace
the engine oil.
This light will come on when the ignition
key is turned to ONº and will go off after
about a few seconds.
When you drive for about 7200 km (4500
miles) after the engine oil replacement,
this light illuminates for about 3 seconds
and then flashes for about 12 seconds
with the ignition key turned to the ONº
position. If you continue driving without
replacing the engine oil, and if the dis-
tance driven exceeds 8000 km (5000
miles), the light will come on after the
ignition key is turned to ONº position.
The light will remain on thereafter.
If the light is flashing, we recommend that
you replace the engine oil at an early
opportunity depending on the driving and
road conditions. If the light comes on,
replace it as soon as possible.The system must be reset after the en-
gine oil replacement. Reset the system by
the following procedure:
1. Turn the ignition key to the LOCKº
position with the odometer reading
shown. (For details, see Odometer and
two trip metersº on page 133 in this
Section.)
2. Turn the ignition key to the ONº posi-
tion while holding down the trip meter
reset knob.
Hold down the knob for at least 5 sec-
onds. The odometer indicates 000000º
and the light goes off.
If the system fails to reset, the light will
continue flashing.
(p) Key Reminder Buzzer
This buzzer acts as a reminder to remove
the key when you open the driver's door
with the ignition key in the ACCº or
LOCKº position.

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CHECKING SERVICE REMINDER
INDICATORS (except the low fuel level
warning light and low windshield
washer fluid level warning light)
1. Apply the parking brake.
2. Open one of the side doors or back
door.
The open door warning light should
come on.
3. Close the door.
The open door warning light should go
off.
4. Turn the ignition key to ONº, but do
not start the engine.
All the service reminder indicators ex-
cept the open door warning light should
come on. The ABSº and VSCº warn-
ing lights, low tire pressure warning
light and engine oil replacement re-
minder light go off after a few seconds.
The SRS warning light goes off after
about 6 seconds. (The TRAC OFFº
indicator light, slip indicator light, AIR-
BAG ONº indicator light and AIRBAG
OFFº indicator light also come on and
go off after a few seconds.)
If any service reminder indicator or warn-
ing buzzer does not function as described
above, have it checked by your Toyota
dealer as soon as possible.

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Engine Immobilizer System
10A
IGN
1G 67. 5A
ECU- B
E E1G 10
1D 9
W P P
PBRW-L
21 9E E4A 12
4G 5
P
GND TXCT CODE VC5
13 12 11 87 5 4 1
R W GRB
A A
P
SIL
7
T14 J17J16
J 6D 3
T 7
AGND TXCT CODE VC5 D +B IG
EFIO
6
B
IMIEFII
7
IMO
V
GND
14
W- B
IC E 6
IB KSW
10
G
CTY
4
B
1 2
4K 8
4N 14L71
D 7 K 4
W- B
B G
27 264M 4
4E 1IC3 5
P
2A 4
V
4G 9
W- B W- B
W- B
D D
J 6IF3 14
11 3K
3B 2
1 2
11 3F
3F 13IND
3
W R B W- B W- B
T 5IA1 9 Data Link Connector 3
Door Cour tesy SW
Front LH Engine Control ModuleJunction
Connector
Juncti on
ConnectorJunction
Connector
Junction
Connector
Unlock
War ning SW
Theft Deterrent
Indicator Light Transponder Key Amplifier
Transponder Key
Computer From Power Source System (
See Page 62)