2001 TOYOTA HIGHLANDER engine

'05 HIGHLANDER_U (L/O 0409)
14
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
Your vehicle is supplied with two kinds
of keys.
1. Master keysÐThese keys work in ev-
ery lock.
2. Sub keyÐThis key will not work in the
glove box.
To protect items locked in the glove box
when using valet parking, leave the sub
key with the attendant.
Since the side doors can be locked with-
out a key, you should always carry a
spare key in case you accidentally lock
your keys inside the vehicle.KEY NUMBER PLATE
Your key number is shown on the plate.
Keep the plate in a safe place such as
your wallet, not in the vehicle.
If you should lose your keys or if you
need additional keys, duplicates can be
made by a Toyota dealer using the key
number.
We recommend writing down the key num-
ber and storing it in a safe place.Your vehicle is supplied with two kinds
of keys.
1. Master keys (black)ÐThese keys work
in every lock. Your Toyota dealer will
need one of them to make a new key
with a built- in transponder chip.
2. Sub key (gray)ÐThis key will not work
in the glove box.
Keys (without engine
immobilizer system)Keys (with engine immobilizer
system)

'05 HIGHLANDER_U (L/O 0409)
15
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
A transponder chip for engine immobilizer
system has been placed in the head of
the master and sub keys. These chips are
needed to enable the system to function
correctly, so be careful not to lose these
keys. If you make your own duplicate key,
you will not be able to cancel the system
or start the engine.
To protect items locked in the glove box
when using valet parking, leave the sub
key with the attendant.
Since the side doors can be locked with-
out a key, you should always carry a
spare key in case you accidentally lock
your keys inside the vehicle.
NOTICE
When using a key containing a trans-
ponder chip, observe the following
precautions:

When starting the engine, do not
use the key with a key ring resting
on the key grip and do not press
the key ring against the key grip.
Otherwise the engine may not start,
or may stop soon after it starts.

When starting the engine, do not
use the key with other transponder
keys around (including keys of oth-
er vehicles) and do not press other
key plates against the key grip.
Otherwise the engine may not start,
or may stop soon after it starts. If
this happens, remove the key once
and then insert it again after remov-
ing other transponder keys (includ-
ing keys of other vehicles) from the
ring or while gripping or covering
them with your hand to start the
engine.

'05 HIGHLANDER_U (L/O 0409)
17
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
The engine immobilizer system is a
theft prevention system. When you in-
sert the key in the ignition switch, the
transponder chip in the key's head
transmits an electronic code to the ve-
hicle. The engine will start only when
the electronic code in the chip corre-
sponds to the registered ID code for
the vehicle.The system is automatically set when the
key is removed from the ignition switch.
The indicator light will start flashing to
show the system is set.
In the following cases, contact your Toyota
dealer.

The indicator light stays on.

The indicator light does not start flash-
ing when the key is removed from the
ignition switch.

The indicator light flashes inconsistent-
ly.
Inserting the registered key in the ignition
switch automatically cancels the system,
which enables the engine to start. The
indicator light will go off.For your Toyota dealer to make you a
new key with built- in transponder chip,
your dealer will need your key number
and master key. However, there is a limit
to the number of additional keys your
Toyota dealer can make for you.
If you make your own duplicate key,
you will not be able to cancel the sys-
tem or start the engine.
NOTICE
Do not modify, remove or disas-
semble the engine immobilizer sys-
tem. If any unauthorized changes or
modifications are made, proper opera-
tion of the system cannot be guaran-
teed.
Engine immobilizer system

'05 HIGHLANDER_U (L/O 0409)
32
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
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

'05 HIGHLANDER_U (L/O 0409)
34
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
TESTING THE SYSTEM
1. Open all the windows.
2. Set the system as described above.
The side doors and back door should
be locked with the key or wireless re-
mote control transmitter. Be sure to
wait until the indicator light starts flash-
ing.
3. Unlock any door from the inside. The
system should activate the alarm.
4. Stop the alarm as described above.
5. Repeat this operation for the other
doors and hood. When testing the
hood, also check that the system is
activated when the battery terminal is
disconnected and then reconnected.
If the system does not work properly,
have it checked by your Toyota dealer.
This indicates that the fuel filler door
is on the left side of your vehicle.1. To open the fuel filler door, pull the
lever up.
When refueling, turn off the engine.
CAUTION

Do not smoke, cause sparks or al-
low open flames when refueling.
The fumes are flammable.

When opening the cap, do not re-
move the cap quickly. In hot weath-
er, fuel under pressure could cause
injury by spraying out of the filler
neck if the cap is suddenly re-
moved.
Fuel tank cap

2005 HIGHLANDER (EWD592U)
66
Starting and Ignition
M1
Battery
A 1
B1
W
BR
R
W- B
B 76
8 AM2 IG2
ST2
I15
IC1 1
30A AM2
10
1
F 7Y L- Y
EB1 4IC1 2
22 22
7. 5A
STARTER
2 2
EB23 B- W
STARTER
Relay
2
P
N
4
W- BB- RW- R B- WL
1
B- R 1G 11C 1
15A
IG2 1F 6
1C 4 GR
BN 1B- W
B- R
B
NSW
E 7 FL MAI N
3. 0W51
32
STAIC31
O
E 7 2
1 ACC
IG1
ST1
3IC1
EB2 4
5E 7
P 1
EH A
J 2
1A 1
140A ALT
2 1
40A AM1
21C 6
W- BW- BB- YW B
B
L- W
B
B B
AM1
EC : * 1
EF : * 217 16 S 1(
A)
, S 2(
B)
Engine Control Module
Fusible Link Block
Ignition SW
Junction
Connector
Noise Filter
(
Ignition System) Park/Neutral
Position SW
Starter

2005 HIGHLANDER (EWD592U)
67
E 6
E 6
E 6 E 6 BR
R RRRRR
W- B W- B W- B W- B W- B
W- R W- R W- R W- R W- R
I GT1 I GT2 IGT3 IGT4 I GT5 I GT6 IGF1
R- L(
*1)
P
Y- B
L- Y
G- Y
L- R
W- RW- R
R- L(
*1)
W- R
P
W- R
Y- B
W- R
L- Y
W- G
G- Y
W- R
L- R
2 22222 4 44444
W- B
R
W- B
R
W- B
R
W- B
R
W- B
R
W- B
EB12
BR
1
31
31
331
3 11
3
R
(
*1)
(
*1) * 2 : 2AZ- FE * 1 : 3MZ- FE
E 6 : * 1
E 9 : * 2E 6 : * 1
E 9 : * 2
E 6 : * 1
E 9 : * 2
E 6 : * 1
E 8 : * 2
E 6 : * 1
E 9 : * 2E 6 : * 1
E 9 : * 2
E 6 : * 1
E 9 : * 2
E 6 : * 1
E 9 : * 2
E 6 : * 1
E 9 : * 2
(
*1) (
*1) (
*1)
(
*1) (
*1) (
*1) (
*1) E 6 : * 1
E 8 : * 2
E 6 : * 1
E 8 : * 2
(
*1)(
*1)
(
*1) (
*1)
(
*2) W- R
W- R
(
*1)
(
*1)
(
*1)
I 7 I 6
I 5 I 4 I 3 I 2
A
B 4 4
R- W(
*2)
R- W(
*2)
E 724 13 12 11 10 9 8
S28(
A)
, S29(
B)
Engine Control Module
Ignition Coil and Igniter No. 1
Ignition Coil and Igniter No. 2
Ignition Coil and Igniter No. 3
Ignition Coil and Igniter No. 4
Ignition Coil and Igniter No. 5
Ignition Coil and Igniter No. 6
Short ConnectorIGF IGT GND +B
IGF IGT GND +B
IGT IGF+B GND
IGF IGT GND +B
IGT IGF+B GN D
IGF IGT GND +B

2005 HIGHLANDER (EWD592U)
68
Starting and Ignition
I15 Ignition SW
7-6 : Closed with the ignition SW at ON or ST position
7-8 : Closed with the ignition SW at ST position
P1
Park/Neutral Position SW
5-4 : Closed with the A/T shift lever in P or N position
S1 (A), S2 (B) Starter
Points closed with the Park/Neutral position SW at P or N position and ignition SW at ST position
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
E742I539 (3MZ-FE)P139 (3MZ-FE)
F738 (3MZ-FE)I541 (2AZ-FE)P141 (2AZ-FE)F740 (2AZ-FE)I639 (3MZ-FE)S1A39 (3MZ-FE)
I239 (3MZ-FE)I739 (3MZ-FE)S1A41 (2AZ-FE)I241 (2AZ-FE)I1543S2B39 (3MZ-FE)
I339 (3MZ-FE)J239 (3MZ-FE)S2B41 (2AZ-FE)I341 (2AZ-FE)J241 (2AZ-FE)S28A43
I439 (3MZ-FE)N139 (3MZ-FE)S29B43I441 (2AZ-FE)N141 (2AZ-FE)
: RELAY BLOCKS
CodeSee PageRelay Blocks (Relay Block Location)
222Engine Room R/B (Engine Compartment Left)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1A29Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel)
1C
1F29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1G
()
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
EB148 (3MZ-FE)EB150 (2AZ-FE)Engine Wire and Engine Room Main Wire (Front Side of Engine Room R/B)
EB248 (3MZ-FE)Engine Wire and Engine Room Main Wire (Front Side of Engine Room R/B)
EB250 (2AZ-FE)
IC152Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)IC352Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)
: GROUND POINTS
CodeSee PageGround Points Location
EC48 (3MZ-FE)Left Side of Cylinder Head
EF50 (2AZ-FE)Left Side of Cylinder Block
EH48 (3MZ-FE)Under the Left HeadlightEH50 (2AZ-FE)Under the Left Headlight
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E648 (3MZ-FE)E850 (2AZ FE)Engine Wire
E748 (3MZ-FE)Engine WireE950 (2AZ-FE)Engine Wire
E750 (2AZ-FE)
g
Service Hints