2001 TOYOTA HIGHLANDER warning

2005 HIGHLANDER (EWD592U)
228
Key Reminder and Seat Belt Warning
IL2 1
BuzzerGR
MPX2 MPX1
W
18
29
E 6
7V
SB
BR
10A
HEATER
1K 13
3A 4
3C 7
B PLG
3F 9
3D 3
V
23K 12 3BA 11
R
1
5V A 2A 12A B 9 A 21
IB IL2 11
LG
10A
DOME
2A 3
4D 114H 6IK3 12
R V V Y
Driver' s
Seat Belt W LG
YFrom Power Source System (
See Page 62)
C11(
A)
, C12(
B)
Combination Meter
Engine Control
Module

2005 HIGHLANDER (EWD592U)
229
1. Seat Belt Warning System
When the ignition SW is turned to the ON position, the signal is input to the body ECU. At this time, to judge whether or not
the driver fastens the seat belt, the signal from the buckle SW LH is input to TERMINAL (A) 10 of the body ECU via multiplex
commnunication system (Bean bus). If the driver does not fasten the seat belt, the seat belt warning light in the combination
meter flashes and the alarm buzzer goes on, in response to the communication control of the body ECU etc.
Additionally, the sensor (Inside of buckle SW (Front passenger's side) ) installed on the front passenger seat detects the
passenger and determines whether or not the passenger fastens the seat belt.
If the passenger does not fasten the seat belt, the front passenger seat belt warning light is flashed.
2. Key Reminder System
If the driver door is opened with the ignition SW set at the ACC or OFF position and the ignition key remained inserted into
the key cylinder (The unlock warning SW is on), the signal from the unlock warning SW is input to TERMINAL (B) 2 of the
body ECU and the signal from the door courtesy SW LH is input to TERMINAL (C) 11 of body ECU. As a result, through
communication control of the body ECU etc. the buzzer in the combination meter goes on to warn the driver that the ignition
key is still inserted.
B19 Buckle SW LH
1-4 : Closed with the driver's seat belt in use
D7 Door Courtesy SW Front LH
1-Ground : Closed with the LH door open
K4 Unlock Warning SW
2-1 : Closed with the ignition key in the cylinder
B17 Buckle SW (Front Passenger's Side)
1-4 : Closed with the front passenger's seat belt in use
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A10A42B1747 (w/o Power Seat)O6A46 (w/ Power Seat)
A11B42B1946 (w/ Power Seat)O6A47 (w/o Power Seat)
A16A42B1947 (w/o Power Seat)O7B46 (w/ Power Seat)
A17B42C11A42O7B47 (w/o Power Seat)
A18C42C12B42O946 (w/ Power Seat)
B9A42D744O947 (w/o Power Seat)
B10B42E642P544
B11C42G543S30A43
B12D42J643S31B43
B1746 (w/ Power Seat)K443
System Outline
Service Hints

2005 HIGHLANDER (EWD592U)
230
Key Reminder and Seat Belt Warning
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1G29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1H29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1J28Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)1K28Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
2A27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
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
4D
4F33
4GCowl Wire and Passenger Side J/B (Right Side of Grove Box)
4H
g(g )
4L324N32
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IA152Cowl Wire and Floor No.2 Wire (Left Kick Panel)
IB252Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC352Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)
IF352Instrument Panel Wire and Cowl Wire (Right Side of Instrument Panel J/B)
IK354Engine Room Main Wire and Cowl Wire (Right Cowl Side Panel)
IL254Instrument Panel Wire and Cowl Wire (Upper Side of Passenger Side J/B)
BL158Floor Wire and Front Seat RH Wire (Under the Front Passenger's Seat)
: GROUND POINTS
CodeSee PageGround Points Location
IB52Right Instrument Panel Brace
IC52Right Cowl Side Panel

2005 HIGHLANDER (EWD592U)
259
The multiplex communication system communicates among the A/C control assembly, body ECU, combination meter,
engine control module, option connector 1, power window master SW with ECU, sliding roof control ECU and theft deterrent
ECU and controls the following systems according to the signals from respective sensors or switches.
Multiplex Communication System Includes Following Systems
* Air Conditioning (Automatic A/C)
* Air Conditioning (Manual A/C)
* Automatic Light Control
* Combination Meter
* Door Lock Control
* Electronically Controlled Transmission and A/T Indicator (3MZ-FE)
* Electronically Controlled Transmission and A/T Indicator (2AZ-FE)
* Engine Control (3MZ-FE)
* Engine Control (2AZ-FE)
* Headlight
* Interior Light
* Key Reminder
* Light Auto Turn Off System
* Moon Roof
* Navigation System
* Power Window
* Seat Belt Warning
* Theft Deterrent System
* Wireless Door Lock Control
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A10A42C11A42P544
A11B42C12B42S2045
A1742E642S30A43
B9A42G543S31B43
B10B42O343T443
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
3E30
3H31Instrument Panel Wire and Center J/B (Behind the Instrument Panel Center)
3J31()
4A334F33Cowl Wire and Passenger Side J/B (Right Side of Grove Box)
4O32
g(g )
System Outline

2005 HIGHLANDER (EWD592U)
285
IF2 10
IC3 8
EA A1
2
BR P Y- B W- B Y- B
Engine Control Module
Skid Control ECU
with Actuator
L
V
B
W
P
BR
Combination SW
J 3
W 1
IC3 7
IF3 7 15A
H- LP
RH LWR
2
R- Y B G
2 1
IF3 15
IC4 1
EB A
R R- B W- B R- B
J 4
B 4
B
Washer Level
Malfunction
Indicator Lamp
Brake
ABS
VSC
Beam
Turn LH
Turn RH
19 AA 15 A 14 B 16
7 A 17 11 B B 10 B 4 B 12
L
GRTurn Signal Flasher SlipDriver' s
Seat Belt
TRAC OFFAirbag
A/T
OI L TEMP
MAINT REQD
Tire Air
Pressure(
2WD) (
2WD)
13 A 10A
IGN
1G 6
4M 4
4E 1
W
SB P
J 6
E E
IL1 9 P
P
(
USA) (
USA)
* 1 : 3MZ- FEFr om Power Source System (
See Page 62)
Brake Warning SW
Junction
ConnectorJunction
Connector
Junction
Connector Washer Level
Sensor
Combination Meter C11(
A)
, C12(
B)
2 1

'05 HIGHLANDER_U (L/O 0409)
390
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
To equalize tire wear and help ex-
tend tire life, Toyota recommends
that you rotate your tires accord-
ing to the maintenance schedule.
(For scheduled maintenance infor-
mation, please refer to the Sched-
uled Maintenance Guideº or Own-
er's Manual Supplementº.)
However, the most appropriate tim-
ing for tire rotation may vary ac-
cording to your driving habits and
road surface conditions.
See If you have a flat tireº on page
337 in Section 4 for tire change proce-
dure.When rotating tires, check for uneven
wear and damage. Abnormal wear is
usually caused by incorrect tire pres-
sure, improper wheel alignment, out-
of- balance wheels, or severe braking.
Initial adjustment of the tire pres-
sure warning system is necessary
after you have rotated your tires.
See Tire pressure warning sys-
temº on page 161 in Section 1- 7.
WHEN TO USE SNOW TIRES OR
CHAINS
Snow tires or chains are recommended
when driving on snow or ice.
On wet or dry roads, conventional tires
provide better traction than snow tires.
SNOW TIRE SELECTION
If you need snow tires, select tires of
the same size, construction and load
capacity as the originally installed tires.
Also, on four- wheel drive models, all
the tires must be the same brand and
have the same tread patterns.
Do not use tires other than those men-
tioned above. Do not install studded tires
without first checking local regulations for
possible restrictions.
CAUTION
Observe the following instructions.
Otherwise, an accident may occur re-
sulting in death or serious injuries.

Do not use snow tires other than
the manufacturer 's recommended si-
ze, as this may cause dangerous
handling characteristics resulting in
loss of control.
Rotating tiresInstalling snow tires and
chains

'05 HIGHLANDER_U (L/O 0409)
392
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
CAUTION

Do not exceed 50 km/h (30 mph) or
the chain manufacturer 's recom-
mended speed limit, whichever is
lower.

Drive carefully avoiding bumps,
holes, and sharp turns, which may
cause the vehicle to bounce.

Avoid sharp turns or locked- wheel
braking, as use of chains may ad-
versely affect vehicle handling.

When driving with chains installed,
be sure to drive carefully. Slow
down before entering curves to
avoid losing control of the vehicle.
Otherwise an accident may occur.
WHEN TO REPLACE YOUR WHEELS
If you have wheel damage such as
bending, cracks or heavy corrosion, the
wheel should be replaced.
If you fail to replace a damaged wheel,
the tire may slip off the wheel or cause
loss of handling control.
WHEEL SELECTION
When replacing wheels, care should be
taken to ensure that the wheels are re-
placed by ones with the same load ca-
pacity, diameter, rim width, and offset.
Correct replacement wheels are available
at your Toyota dealer.
A wheel of a different size or type may
adversely affect handling, wheel and bear-
ing life, brake cooling, speedometer/odom-
eter calibration, stopping ability, headlight
aim, bumper height, vehicle ground clear-
ance, and tire or snow chain clearance to
the body and chassis.Replacement with used wheels is not rec-
ommended as they may have been sub-
jected to rough treatment or high mileage
and could fail without warning. Also, bent
wheels which have been straightened may
have structural damage and therefore
should not be used. Never use an inner
tube in a leaking wheel which is designed
for a tubeless tire.
CAUTION
Observe the following instructions.
Otherwise, an accident may occur re-
sulting in death or serious injuries.

Do not use wheels other than the
manufacturer 's recommended size,
as this may cause dangerous han-
dling characteristics resulting in
loss of control.

Four- wheel drive models:
Do not use wheels of different
brands, sizes and types, as this
may cause dangerous handling
characteristics resulting in loss of
control.
Replacing wheels

'05 HIGHLANDER_U (L/O 0409)
399
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
Type A fuses can be pulled out by using
the pull- out tool. The location of the pull-
out tool is shown in the illustration.
If you are not sure whether the fuse has
blown, try replacing the suspected fuse
with one that you know is good.
If the fuse has blown, push a new fuse
into the clip.
Only install a fuse with the amperage rat-
ing designated on the fuse box lid.
If you do not have a spare fuse, in an
emergency you can pull out the FR DEFº
or CIGº fuse, which may be dispensable
for normal driving, and use it if its amper-
age rating is the same.
If you cannot use one of the same amper-
age, use one that is lower, but as close
to the rating as possible. If the amperage
is lower than that specified, the fuse
might blow out again but this does not
indicate anything wrong. Be sure to get
the correct fuse as soon as possible and
return the substitute to its original clip.
It is a good idea to purchase a set of
spare fuses and keep them in your ve-
hicle for emergencies.If the new fuse immediately blows out,
there is a problem with the electrical sys-
tem. Have your Toyota dealer correct it as
soon as possible.
You should normalize the moon roof if it
does not operate automatically or the jam
protection function does not operate cor-
rectly after replacing blown fuses. To
normalize the moon roof, see Electric
moon roofº on page 36 in Section 1- 2.
CAUTION
Never use a fuse with a higher am-
perage rating, or any other object, in
place of a fuse. This may cause ex-
tensive damage and possibly a fire.
If any washer does not work or the low
windshield washer fluid level warning
light comes on, the washer tank may be
empty. Add washer fluid.
You may use plain water as washer fluid.
However, in cold areas where tempera-
tures range below the freezing point, use
washer fluid containing antifreeze. 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.
Adding washer fluid