2003 Hyundai Sonata fuse box

1- 30 FEATURES OF YOUR HYUNDAI
!
The airbag modules are located both in the
center of the steering wheel and in the front
passenger's panel above the glove box.
When the SRSCM detects a considerable im-
pact to the front of the vehicle, it will automatically
deploy the airbags.
Upon deployment, tear seams molded directly
into the pad covers will separate under pres-
sure from the expansion of the airbags. Further
opening of the covers then allows full inflation of
the airbags.
A fully inflated airbag in combination with a
properly worn seat belt slows the driver's or the
passenger's forward motion, thus reducing the
risk of head or chest injury.
After complete inflation, the airbag immediately
starts deflating, enabling the driver to maintain
forward visibility.
CAUTION:When installing the container of liquid air
freshener inside a vehicle, do not place it
near the instrument cluster nor on the in-
strument panel pad surface. If there is any
leakage from the air freshener onto these
areas (Instrument cluster, instrument panel
pad or air ventilator), it may damage these
parts. If the liquid from the air freshener
does leak onto these areas, wash them with
water immediately.
WARNING:o When the SRS is activated, there may be
a loud noise and fine dust will be re-
leased throughout the vehicle. These
conditions are normal and are not haz-
ardous. However, the fine dust gener-
ated during airbag deployment may
cause skin irritation. Be sure to wash
your hands and face thoroughly with
lukewarm water and a mild soap after an
accident in which the airbags were de-
ployed.
o The SRS can function only when the
ignition key is in the "ON" position. If the
SRS SRI does not come on, or continu-
ously remains on, after flashing for about
6 seconds when the ignition key is
turned to the "ON" position, or after the
engine is started, or comes on while
driving, the SRS is not working properly.
If this occurs, have your vehicle immedi-
ately inspected by your Hyundai dealer.
o Before you replace a fuse or disconnect
a battery terminal, turn the ignition key
to the "LOCK" position or remove the
ignition key. Never remove or replace the
air bag related fuse(s) when the ignition
key is in the "ON" position. Failure to
heed this warning will cause the SRS SRI
to illuminate.
!
B240B04YB240B05L
Passenger's AirbagPassenger's Airbag

6. Do-It-Yourself Maintenance
Engine compartment ........................................................................ 6-2
General checks ................................................................................ 6-4
Checking the engine oil .................................................................... 6-5
Changing the oil and filter ................................................................. 6-6
Checking and changing the engine coolant ...................................... 6-7
Spark plugs ...................................................................................... 6-9
Changing the air cleaner filter ......................................................... 6-11
Checking the transaxle oil (Manual) ............................................... 6-12
Checking the transaxle fluid (Automatic) ....................................... 6-13
Checking the brakes ...................................................................... 6-14
Air conditioning care ....................................................................... 6-15
Checking drive belts ...................................................................... 6-18
Checking and replacing fuses ........................................................ 6-18
Replacement of bulbs .................................................................... 6-21
Junction Box description ................................................................ 6-29
6

6- 18 DO-IT-YOURSELF MAINTENANCE
G200A01Y-GATCHECKING AND REPLACING
FUSES
Replacing a Fusible Link
G200B01Y-GAT
Replacing Accessory Fuse
G190A01A-AATCHECKING DRIVE BELTS
Drive belts should be checked periodically for
proper tension and adjusted if necessary. At the
same time, belts should be examined for cracks,
wear, fraying or other evidence of deterioration
and replaced if necessary.
Belt routing should also be checked to be sure
there is no interference between the belts and
other parts of the engine. After a belt is replaced,
the new belt should be adjusted again after two
or three weeks to eliminate slack resulting from
initial stretching after use.A fusible link will melt if the electrical circuits from
the battery are ever overloaded, thus prevent-
ing damage to the entire wiring harness. (This
could be caused by a short in the system
drawing too much current.) If this ever happens,
have a Hyundai dealer determine the cause,
repair the system and replace the fusible link.
The fusible links are located in a under hood
junction box for easy inspection.
!
The instrument panel junction box for the lights
and other electrical accessories will be found
low on the dashboard on the driver’s side. Inside
the box you will find a list showing the circuits
protected by each fuse.
CAUTION:When replacing a fusible link, never use
anything but a new fusible link with the
same or lower amperage rating. Never use
a piece of wire or a higher-rated fusible link.
This could result in serious damage and
create a fire hazard.
HSM396
G200A01L
G200B01Y
Bad
Good
V6
Power
steeringPower
steering Auto
tensioner
Generator
Generator
Eng.pulley Eng.pulleyCOMP COMPEng.coolant
0.30~0.48in.
0.24~0.35in.
DOHC

DO-IT-YOURSELF MAINTENANCE 6- 19
!
If any of your car’s lights or other electrical
accessories stop working, a blown fuse could
be the reason. If the fuse has burned out, you
will see that the metal strip inside the fuse has
burned through. If you suspect a blown fuse,
follow this procedure:
1. Turn off the ignition and all other switches.
2. Open the instrument panel junction box and
examine each fuse. Remove each fuse by
pulling it toward you (a small "fuse puller" tool
is contained in the fuse box to simplify this
operation).
3. Be sure to check all other fuses even if you
find one that appears to have burned out.
4. Replace the blown fuse by pressing a new
fuse of the same rating into place. The fuse
should be a snug fit. If it is not, have the fuse
clip repaired or replaced by a Hyundai dealer.
HXGS416Fuse Puller
G210A01A-AATCHECKING THE BATTERY
WARNING:
Batteries can be dangerous! When working
with batteries, carefully observe the follow-
ing precautions to avoid serious injuries.
The fluid in the battery contains a strong solution
of sulfuric acid, which is poisonous and highly
corrosive. Be careful not to spill it on yourself or
the car. If you do spill battery fluid on yourself,
immediately do the following:
o If battery fluid is on your skin, flush the
affected areas with water for at least 15
minutes and then seek medical assistance.
o If battery fluid is in your eyes, rinse out your
eyes with water and get medical assistance
as soon as possible. While you are being
driven to get medical assistance, continue to
rinse your eyes by using a sponge or soft
cloth saturated with water.
o If you swallow battery fluid, drink a large
quantity of water or milk followed by milk of
magnesia, eat a raw egg or drink vegetable
oil. Get medical assistance as soon as
possible. If you do not have a spare fuse, you may be
able to borrow a fuse of the same or lower
rating from an accessory you can tempo-
rarily get along without (the radio or cigarette
lighter, for example). Always remember to
replace the borrowed fuse.
CAUTION:A burned-out fuse indicates that there is a
problem in the electrical circuit. If you re-
place a fuse and it blows as soon as the
accessory is turned on, the problem is
serious and should be referred to a Hyundai
dealer for diagnosis and repair. Never re-
place a fuse with anything except a fuse
with the same or a lower amperage rating.
A higher capacity fuse could cause damage
and create a fire hazard.
NOTE:See page 6-29 for the junction box descrip-
tions.
!
G200B03Y
GoodBurned out

DO-IT-YOURSELF MAINTENANCE 6- 29
G200C03Y-GATJUNCTION BOX DESCRIPTION
Under hood junction box
Note:
Not all junction box description in this manual may be applicable to
your vehicle. It is accurate at the time of printing. When you inspect the
junction box on your vehicle, refer to the junction box label
DESCRIPTION
COND FAN
PWR WIND
ABS 2
IGN SW-1
ABS 1
IGN SW-2
RAD FAN MTR
FUEL PUMP
HD LP LO
ABS
INJECTOR
A/C COMPR
ATM RLY
ECU RLY
IG COIL
O2 SNSR
ECU
HORN
HEAD LP HI
HEAD LP WASH
DRL
FR FOG
HEAD LP LO RH
DIODE-1
SPARE
SPARE
SPARE
SPARE
DIODE-2
BLOWER
PWR FUSE-2
PWR AMP
SUNROOF
TAIL LP
PWR FUSE-1
ECU
RR HTDFUSE RATING
20A
40A
20A
30A
40A
30A
30A
20A
15A
10A
10A
10A
20A
30A
20A
15A
15A
10A
15A
20A
15A
15A
15A
-
30A
20A
15A
10A
-
30A
30A
20A
15A
20A
30A
10A
30APROTECTED COMPONENTS
Condenser fan
Power window
ABS
Ignition switch
ABS
Ignition switch
Radiator fan motor
Fuel pump
Headlights (LO)
ABS
Injector
Air-con compressor
ATM Relay
Engine control unit relay
Ignition coil
Oxygen sensor
Engine control unit
Horn
Headlights (HI)
-
DRL
Front fog lights
Headlight (Low)
Diode 1
Spare fuse
Spare fuse
Spare fuse
Spare fuse
Diode 2
Blower
Power fuse 2
Power amp
Sunroof
Tail lights
Power fuse 1
ECU
Rear window defroster
HEF-165C

6- 30 DO-IT-YOURSELF MAINTENANCE
G200D02Y-GATInstrument panel junction boxDESCRIPTIONFUSE RATING PROTECTED COMPONENTS
RR HTD IND 10A Rear window defroster, Outside rear view mirror heater
HAZARD 10AHazard light, Turn signal lights
RR FOG 15A Rear fog light
A/CON 10AAir conditioning system
ETACS 10A ETACS, Keyless entry system, Door lock system
DR LOCK 15A Power door lock
P/SEAT 25A Power seat
T/LID OPEN 15A Remote trunk lid
STOP LP 15A Stop lights
H/LP 10A Head light
A/BAG IND 10AAir-bag
T/SIG 10ATurn signal lights
A/CON SW 10A Air conditioning system
ACC SOCKET 15A Power outlet
S/HTR 15ASeat heater
A/BAG 15A Air-bag
B/UP 10A Backup lights
CLUSTER 10A Cluster
START 10AEngine switch
SP1 15A Spare fuse
SP2 15A Spare fuse
P/SEAT (RH) 25A Power Seat
SP4 15A Spare fuse
D/CLOCK 10ADigtal clock
TAIL(LH) 10APosition lights, License plate lights, Tail lights
AUDIO 10A Audio
WIPER 20A Wiper
ROOM LP 10A Dome lights, Front door edge warning lights
TAIL(RH) 10APosition lights, License plate lights, Tail lights
C/LIGHTER 15ACigar lighter
EPS 10A
G200C02Y

INDEX 10- 3
E
Emission Control System ................................................................... 7-2
Engine
Before starting the engine .............................................................. 2-3
Compartment (2.4 DOHC) ............................................................ 6-2
Compartment (2.7 V6) ................................................................... 6-3
Coolant ........................................................................................... 6-7
Coolant temperature gauge .........................................................1-38
If the engine overheats .................................................................. 3-3
Number........................................................................................... 8-2
Oil .................................................................................................... 6-5
Starting ........................................................................................... 2-4
Engine Exhaust Can Be Dangerous .................................................. 2-2
F
Fan Speed Control ............................................................................1-66
Floor Mat Anchor ..............................................................................1-62
Fog Light
Front.............................................................................................1-42
Front Seats
Adjustable front seats ..................................................................1-10
Adjustable headrests ...................................................................1-11
Adjusting seat forward and rearward ..........................................1-10
Adjusting seatback angle .............................................................1-11
Fuel
Capacity......................................................................................... 9-2
Gauge...........................................................................................1-38
Unleaded gasoline .......................................................................... 1-2
Fuel Filler Lid
Remote release ............................................................................1-58
Fuses................................................................................................6-18G
General Everyday Checks ................................................................. 6-4
Glove Box ..........................................................................................1-50
H
Hazard Warning System ..................................................................1-44
Headlight .................................................................................. 1-41, 6-21
Heating and Cooling Control
Rotary and push Button type .......................................................1-65
Automatic type .............................................................................1-72
Heating and Ventilation
Air flow control ..............................................................................1-67
Temperature control ....................................................................1-66
High-Mounted Rear Stop Light .........................................................1-58
Homelink Mirror .................................................................................1-53
Hood Release ....................................................................................1-59
Horn...................................................................................................1-60
I
Ignition Switch ...................................................................................... 2-3
Instrument Cluster and Indicator Lights ...........................................1-34
Instrument Panel Light Control (Rheostat) .......................................1-45
Interior Light .......................................................................................1-49
Intermittent Wiper ..............................................................................1-43
J
Jump Starting ...................................................................................... 3-2
Junction Box Description ..................................................................6-29