air condition TOYOTA HIGHLANDER 2001 Service Owner's Manual

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CAUTION
To avoid potential death or serious
injury when the front passenger occu-
pant classification system does not
detect the conditions correctly, ob-
serve the following.

Do not recline the front passenger
seat seatback so that it interferes
with a second seat as it may cause
the AIRBAG OFFº indicator light
be illuminated. If the seatback inter-
feres with the second seat, return
the seatback to a position where it
does not interfere with the second
seat.
Keep the front passenger seatback
as upright as possible when the ve-
hicle is moving. Reclining the seat-
back excessively may lessen the ef-
fectiveness of the seat belt system.

Make sure the AIRBAG ONº indica-
tor light is illuminated when using
the seat belt extender for the front
passenger seat. If the AIRBAG
OFFº indicator light is illuminated,
disconnect the extender tongue
from the seat belt buckle, then re-
connect the seat belt. Reconnect
the seat belt extender after making
sure the AIRBAG ONº indicator
light is illuminated. If you use the
seat belt extender while the AIR-
BAG OFFº indicator light is illumi-
nated, the front passenger airbag
and side airbag on the front pas-
senger side may not activate cor-
rectly, which could cause death or
serious injury in the event of colli-
sion.
If an adult sits in the front
passenger seat, the AIRBAG ONº
indicator light should be illumi-
nated. If the AIRBAG OFFº
indicator light is illuminated, ask
the passenger to sit up straight,
well back in the seat, feet on the
floor, and with the seat belt worn
correctly. If the AIRBAG OFFº
indicator light still remains illumi-
nated, either ask the passenger to
move to the rear seat, or if that is
not possible, move the front
passenger seat fully rearward.

Wear the seat belt properly.

Make sure the front passenger 's
seat belt tab has not been left in-
serted into the buckle before some-
one sits in the front passenger
seat.

Do not put a heavy load in the
front passenger seatback pocket or
attach a seatback table to the front
passenger seat seatback.

Do not put weight on the front pas-
senger seat by putting your hands
or feet on the front passenger seat
seatback from the rear passenger
seat.

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2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
Install the child restraint system on the
front passenger seat only when it is un-
avoidable. Your vehicle is equipped with a
front passenger occupant classification
system. In order to activate the occupant
classification system correctly, install the
forward- facing child restraint system on
the front passenger seat in the following
order:
1. Turn the ignition key to the ONº posi-
tion.
2. Move the front passenger seat to the
rearward position.
3. Put the child restraint system on the
front passenger seat without putting
your weight on the front passenger
seat.
4. Insert the seat belt tab into the seat
belt buckle.
5. Fully extend the shoulder belt to put it
in the lock mode. When the belt is
then retracted even slightly, it cannot
be extended. To hold the seat securely,
make sure the belt is in the lock mode
before letting the belt retract.6. While pressing the convertible seat
firmly against the seat cushion and
seatback, let the shoulder belt retract
as far as it will go to hold the convert-
ible seat securely.
CAUTION
Push and pull the child restraint sys-
tem in different directions to be sure
it is secure. Follow all the installation
instructions provided by its manufac-
turer.
7. Put a child on the child restraint sys-
tem and secure the child, complying
with the instructions provided by the
child restraint system manufacturer.The AIRBAG OFFº indicator light should
be illuminated when the ignition key is
ONº and the child is in the child restraint
system after following these procedures.
The AIRBAG OFFº indicator light indi-
cates the SRS front passenger airbag and
side airbag on the passenger side will not
deploy. If the AIRBAG ONº indicator light
is illuminated, remove the child restraint
system and reinstall it with the ignition
key in the ACCº or LOCKº position. If
the AIRBAG ONº indicator light is illumi-
nated when the ignition key is turned to
the ONº position, then the SRS front pas-
senger airbag and side airbag on the pas-
senger side may deploy in an accident.
Do not drive the vehicle in this condition.
Remove the child restraint system and
contact your Toyota dealer.

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2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
Ty p e A
Ty p e B
Adjust the mirror so that you can just
see the rear of your vehicle in the mir-
ror.
This mirror is equipped with auto anti-
glare function. The function is designed
to reduce glare from the headlights of
the vehicle behind you during night
driving.
When the ignition key is inserted and
turned on, the inside rear view mirror al-
ways turns on in the automatic function
mode.
The indicator illuminates to show you that
the function is on.
In automatic function mode, if the mirror
detects light from the headlights of the
vehicle behind you, the mirror surface
darkens slightly to reduce the reflected
light.
To turn off the automatic function:
Type AÐPush the OFFº switch.
Type BÐPush the MIRRORº switch.
To turn on the automatic function again:
Type AÐPush the AUTOº switch.
Type BÐPush the MIRRORº switch.
Adjust it before driving so that the rear
view is in the best condition.When the inside air temperature is low, it
may take a little longer for the mirror to
darken in response to the detection of
headlights.
CAUTION
Do not adjust the mirror while the
vehicle is moving. Doing so may
cause the driver to mishandle the ve-
hicle and an accident may occur re-
sulting in death or serious injuries.
Auto anti- glare inside rear
view mirror

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2. Control System
*SFI system
The SFI system monitors the engine condition through the signals input from each sensor (Input signals from (1) to (12)
etc.) to the engine control module. And the control signal is output to TERMINALS #10, #20, #30, #40, #50 and #60 of
the engine control module to operate the injector (Inject the fuel). The SFI system controls the fuel injection operation by
the engine control module in response to the driving conditions.
*ESA system
The ESA system monitors the engine condition through the signals input to the engine control module from each sensor
(Input signals from (1) to (12) etc.). The best ignition timing is decided according to this data and the memorized data in
the engine control module and the control signal is output to TERMINALS IGT1, IGT2, IGT3, IGT4, IGT5 and IGT6. This
signal controls the igniter to provide the best ignition timing for the driving conditions.
*ACIS
The ACIS includes a valve in the bulkhead separating the surge tank into two parts. This valve is opened or closed
according to the driving conditions to control the intake manifold length in three stages, for increased engine output in all
ranges from low to high speeds, when idling.
3. Diagnosis System
With the diagnosis system, when there is a malfunction in the engine control module signal system, the malfunctioning
system is recorded in the memory. The malfunctioning system can be found by reading the code displayed by the
malfunction indicator lamp.
4. Fail-Safe System
When a malfunction has occurred in any system, if there is a possibility of engine trouble being caused by continued control
based on the signals from that system, the fail-safe system either controls the system by using data (Standard values)
recorded in the engine control module memory or else stops the engine.
CIRCUIT OPENING Relay
5-3 : Closed with the starter running
EFI Relay
5-3 : Closed with the ignition SW at ON or ST position
E5 (A), E6 (B), E7 (E), E8 (D), E9 (C) Engine Control Module
Voltage at engine control module wiring connector
BATT-E1 : Always 9.0-14.0 volts
VC-E2 : Always 4.5-5.5 volts (Ignition SW at ON position)
VG-E2G : 1.1-1.5 volts (Engine idling and A/C SW off)
THA-E2 : 0.5-3.4 volts (Engine idling and intake air temp. 20°C, 68°F)
THW-E2 : 0.2-1.0 volts (Engine idling and coolant temp. 80°C, 176°F)
IGF-E1 : 4.5-5.5 volts (Ignition SW at ON position)
Pulse generation (Engine idling)
SIL-E1 : Pulse generation (During transmission)
TACH-E1 : Pulse generation (Engine idling)
STA-E1 : 6.0 volts or more (Engine cranking)
FC-E1 : 9.0-14.0 volts (Ignition SW at ON position)
0-3.0 volts (Engine idling)
SPD-E1 : Pulse generation (Ignition SW on and rotate driving wheel slowly)
W-E1 : Below 3.0 volts (Ignition SW at ON position)
NSW-E1 : 9.0-14.0 volts (Ignition SW on and other shift position in P or N position)
0-3.0 volts (Ignition SW on and shift position in P or N position)
PRG-E01 : 9.0-14.0 volts (Ignition SW at ON position)
TC-E1 : 9.0-14.0 volts (Ignition SW at ON position)
STP-E1 : 7.5-14.0 volts (Ignition SW on and brake pedal depressed)
0-1.5 volts (Ignition SW on and brake pedal depressed)
PTNK-E1 : 3.0-3.6 volts (Ignition SW at ON position)
1.3-2.1 volts (Ignition SW on and apply vacuum 2.0 kpa)
OX1B, OX2B-E1 : Pulse generation (Maintain engine speed at 2500 rpm for two minutes after warming up)
KNK1, KNK2-E1 : Pulse generation (Engine idling)
IGT1, IGT2, IGT3, IGT4, IGT5, IGT6-E1 : Pulse generation (Engine idling)
#10, #20, #30, #40, #50, #60-E01 : 9.0-14.0 volts (ignition SW at ON position)
Pulse generation (Engine idling)
Service Hints

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Engine Control for 2AZ-FE
2. Control System
*SFI system
The SFI system monitors the engine condition through the signals input from each sensor (Input signals from (1) to (12)
etc.) to the engine control module. And the control signal is output to TERMINALS #1, #2, #3 and #4 of the engine
control module to operate the injector (Inject the fuel). The SFI system controls the fuel injection operation by the engine
control module in response to the driving conditions.
*ESA system
The ESA system monitors the engine condition through the signals input to the engine control module from each sensor
(Input signals from (1) to (12) etc.). The best ignition timing is decided according to this data and the memorized data in
the engine control module and the control signal is output to TERMINALS IGT1, IGT2, IGT3 and IGT4. This signal
controls the igniter to provide the best ignition timing for the driving conditions.
3. Diagnosis System
With the diagnosis system, when there is a malfunction in the engine control module signal system, the malfunctioning
system is recorded in the memory. The malfunctioning system can be found by reading the code displayed by the
malfunction indicator lamp.
4. Fail-safe System
When a malfunction has occurred in any system, if there is a possibility of engine trouble being caused by continued control
based on the signals from that system, the fail-safe system either controls the system by using data (Standard values)
recorded in the engine control module memory or else stops the engine.
CIRCUIT OPENING Relay
5-3 : Closed with the starter running
EFI Relay
5-3 : Closed with the ignition SW at ON or ST position
E5 (A), E6 (B), E7 (E), E8 (D), E9 (C) Engine Control Module
BATT-E1 : Always 9.0-14.0 volts
VC-E2 : 4.5-5.5 volts (Ignition SW at ON position)
VG-EVG : 1.1-1.5 volts (Engine idling and A/C SW off)
THA-E2 : 0.5-3.4 volts (Engine idling and intake air temp. 20°C, 68°F)
THW-E2 : 0.2-1.0 volts (Engine idling and coolant temp. 80°C, 176°F)
IG1-E1 : 4.5-5.5 volts (Ignition SW at ON position)
Pulse generation (Engine idling)
SIL-E1 : Pulse generation (During transmission)
TACH-E1 : Pulse generation (Engine idling)
STA-E1 : 6.0 volts or more (Engine cranking)
FC-E01 : 9.0-14.0 volts (Ignition SW at ON position)
SPD-E1 : Pulse generation (Ignition SW on and rotate driving wheel slowly)
W-E01 : Below 3.0 volts (Ignition SW at ON position)
NSW-E1 : 9.0-14.0 volts (Ignition SW on and other shift position in P or N position)
0-3.0 volts (Ignition SW on and shift position in P or N position)
PRG-E01 : 9.0-14.0 volts (Ignition SW at ON position)
STP-E1 : 7.5-14.0 volts (Ignition SW on and brake pedal depressed)
Below 1.5 volts (Ignition SW on and brake pedal released)
KNK1-E1 : Pulse generation (Engine idling)
PSW-E1 : 9.0-14.0 volts (Ignition SW at ON position)
HA1A-E04 : Below 3.0 volts (Engine idling)
IGSW-E1 : 9.0-14.0 volts (Ignition SW at ON position)
MREL-E1 : 9.0-14.0 volts (Ignition SW at ON position)
G2+, NE+ -NE- :
Pulse generation (Engine idling)
OC1+ -OC1- : Pulse generation (Ignition SW at ON position)
HT1B-E1 : 9.0-14.0 volts (Engine idling)
Below 3.0 volts (Ignition SW at ON position)
A1A+ -E1 : 3.3 volts (Ignition SW at ON position)
OX1B-E1 : Pulse generation (Maintain engine speed at 2500 rpm for 90 sec. after warming up)
IGT1, IGT2, IGT3, IGT4-E1 : Pulse generation (Engine idling)
#1, #2, #3, #4-E01 : 9.0-14.0 volts (Ignition SW at ON position)
Pulse generation (Engine idling)
Service Hints

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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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2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
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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2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
(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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2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
Avoid using cassettes with a total play-
ing time longer than 100 minutes (50
minutes per side). The tape used in
these cassettes is thin and could get
stuck or tangled in the cassette player.
CARING FOR YOUR COMPACT DISC
PLAYER, DVD PLAYER AND DISCS
Extremely high temperatures can keep
your compact disc player and DVD
player from working. On hot days, use
the air conditioning to cool the vehicle
interior before you use the players.
Bumpy roads or other vibrations may
make your compact disc player and
DVD player skip.
If moisture gets into your compact disc
player and DVD player, the players
may not play even though they appear
to be working. Remove the disc from
the player and wait until it dries.
CAUTION
Compact disc players and DVD play-
ers use an invisible laser beam which
could cause hazardous radiation ex-
posure if directed outside the unit. Be
sure to operate the players correctly.
Compact disc player
Use only compact discs marked as
shown above. The following products
may not be playable on your compact
disc player.
SACD
dts- CD
Copy- protected CD
CD- R (CD- Recordable)
CD- RW (CD- Re- writable)
CD- ROM

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2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
OPERATION OF INSTRUMENTS AND
CONTROLS
Air conditioning system
Front manual air conditioning system
Controls248 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air flow selector settings251 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating tips251 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front automatic air conditioning system
Controls254 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air flow selector settings257 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating tips257 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Side vents260 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear heater system261 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air conditioning filter262 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
For information about the front air conditioning system of a vehicle
equipped with Navigation system, please refer to the separate
Navigation System Owner's Manualº.
SECTION 1- 9