2001 TOYOTA HIGHLANDER engine

2005 HIGHLANDER (EWD592U)
97
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A640 (2AZ-FE)E6B42K141 (2AZ-FE)
A10A42E7E42M141 (2AZ-FE)
A11B42E8D42O141 (2AZ-FE)
A1742E9C42P141 (2AZ-FE)
A2742F1244P241 (2AZ-FE)
B9A42G140 (2AZ-FE)P544
B10B42G543S1543
C140 (2AZ-FE)H1043S2741 (2AZ-FE)
C240 (2AZ-FE)I841 (2AZ-FE)S28A43
C640 (2AZ-FE)I941 (2AZ-FE)S29B43
C740 (2AZ-FE)I1041 (2AZ-FE)S30A43
C11A42I1141 (2AZ-FE)S31B43
C12B42J241 (2AZ-FE)T341 (2AZ-FE)
C1744J643T1341 (2AZ-FE)
D342J743T1443
E240 (2AZ-FE)J1643V441 (2AZ-FE)
E5A42J1944V1545
: RELAY BLOCKS
CodeSee PageRelay Blocks (Relay Block Location)
124R/B No.1 (Lower Finish Panel)
222Engine Room R/B (Engine Compartment Left)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1E29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1G29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1K28Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
2A
2B27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)2D27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2F
3A
3B
3C303D30
Instrument Panel Wire and Center J/B (Behind the Instrument Panel Center)3EInstrument Panel Wire and Center J/B (Behind the Instrument Panel Center)
3F
3J313K31
4A
4C
4D
4E33
4FCowl Wire and Passenger Side J/B (Right Side of Grove Box)4GCowl Wire and Passenger Side J/B (Right Side of Grove Box)
4H
4L
4M32
4N

2005 HIGHLANDER (EWD592U)
98
Engine Control for 2AZ-FE
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
EB150 (2AZ FE)Engine Wire and Engine Room Main Wire (Front Side of Engine Room R/B)EB250 (2AZ-FE)Engine Wire and Engine Room Main Wire (Front Side of Engine Room R/B)
IA152Cowl Wire and Floor No 2 Wire (Left Kick Panel)IA252Cowl Wire and Floor No.2 Wire (Left Kick Panel)
IB252Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC1
IC252Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)IC352Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)
IC4
IF352Instrument Panel Wire and Cowl Wire (Right Side of Instrument Panel J/B)
IK254Engine Room Main Wire and Cowl Wire (Right Cowl Side Panel)IK354Engine Room Main Wire and Cowl Wire (Right Cowl Side Panel)
IL154Instrument Panel Wire and Cowl Wire (Upper Side of Passenger Side J/B)IL254Instrument Panel Wire and Cowl Wire (Upper Side of Passenger Side J/B)
IM154Engine Wire and Cowl Wire (Right Kick Panel)
IO154Cowl Wire and Floor Wire (Right Kick Panel)
BJ156Floor Wire and Floor No.4 Wire (Right Side of Rear Floor Crossmember)
: GROUND POINTS
CodeSee PageGround Points Location
EE50 (2AZ-FE)Intake Side of Cylinder Block
EF50 (2AZ-FE)Left Side of Cylinder Block
EH50 (2AZ-FE)Under the Left Headlight
IB52Right Instrument Panel Brace
IC52Right Cowl Side Panel
BB56Right Center Pillar
BC56Left Side of Rear Cross Member
BF56Near the Rear Side Marker Light RH
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E7I7
E850 (2AZ-FE)Engine WireI854Cowl Wire
E9
()Engine WireI9
I654

'05 HIGHLANDER_U (L/O 0409)
131
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
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

'05 HIGHLANDER_U (L/O 0409)
132
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
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

'05 HIGHLANDER_U (L/O 0409)
133
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)

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

'05 HIGHLANDER_U (L/O 0409)
137
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
If the indicator or buzzer comes on...Do this.
(o)Replace engine oil.
(p)Key reminder buzzerRemove key.

'05 HIGHLANDER_U (L/O 0409)
138
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
(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.

'05 HIGHLANDER_U (L/O 0409)
139
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.