check engine Hyundai Sonata

741
Maintenance
G190200AUN
Battery recharging
Your vehicle has a maintenance-free,
calcium-based battery.
If the battery becomes discharged in ashort time (because, for example, the
headlights or interior lights were left on
while the vehicle was not in use),
recharge it by slow charging (trickle)
for 10 hours.
If the battery gradually discharges because of high electric load while the
vehicle is being used, recharge it at 20-
30A for two hours.(Continued)
When lifting a plastic-cased bat- tery, excessive pressure on the
case may cause battery acid to
leak, resulting in personal injury.
Lift with a battery carrier or with
your hands on opposite corners.
Never attempt to recharge the battery when the battery cablesare connected.
The electrical ignition system works with high voltage. Never
touch these components with theengine running or the ignition
switched on.
Failure to follow the above warn-
ings can result in serious bodily
injury or death.WARNING - Recharging
battery
When recharging the battery,
observe the following precautions:
The battery must be removed from the vehicle and placed in an area with good ventilation.
Do not allow cigarettes, sparks, or flame near the battery.
Watch the battery during charg- ing, and stop or reduce the charg-
ing rate if the battery cells begin
gassing (boiling) violently or if
the temperature of the electrolyte
of any cell exceeds 49°C (120°F).
Wear eye protection when check- ing the battery during charging.
(Continued)

753
Maintenance
FUSES
G210000AFD-EA
A vehicle’s electrical system is protected
from electrical overload damage by
fuses. This vehicle has 2 (or 3) fuse panels, one
located in the driver’s side panel bolster,
the other in the engine compartment
near the battery.
If any of your vehicle’s lights, acces-
sories, or controls do not work, check the
appropriate circuit fuse. If a fuse has
blown, the element inside the fuse will bemelted.
If the electrical system does not work,
first check the driver’s side fuse panel.
Always replace a blown fuse with one of
the same rating.
If the replacement fuse blows, this indi-
cates an electrical problem. Avoid using
the system involved and immediately
consult an authorised HYUNDAI dealer.
Three kinds of fuses are used: blade type
for lower amperage rating, cartridge type,
and fusible link for higher amperage rat-ings.
1VQA4037
Normal
Normal
Blade type
Cartridge type
Fusible link Blown
Blown
Normal Blown
WARNING - Fuse replace-
ment
Never replace a fuse with any- thing but another fuse of the same rating.
A higher capacity fuse could cause damage and possibly a
fire.
Never install a wire instead of the proper fuse - even as a temporary
repair. It may cause extensive
wiring damage and a possible fire.
CAUTION
Do not use a screwdriver or any
other metal object to remove fuses because it may cause a short circuit
and damage the system.

Maintenance
54
7
G210100AUN-EA
Inner panel fuse replacement
1. Turn the ignition switch and all other
switches off.
2. Open the fuse panel cover. 3. Pull the suspected fuse straight out.
Use the removal tool provided in the
engine compartment fuse panel.
4. Check the removed fuse; replace it if it is blown.
5. Push in a new fuse of the same rating, and make sure it fits tightly in the clips.
If it fits loosely, consult an authorised
HYUNDAI dealer.
If you do not have a spare, use a fuse of the same rating from a circuit you may not need for operating the vehicle, suchas the cigar lighter fuse.
If the headlights or other electrical com-
ponents do not work and the fuses are
OK, check the fuse block in the engine
compartment. If a fuse is blown, it mustbe replaced.
ONF078018R
Driver’s side panel
ONF078019

Maintenance
56
7
4. Push in a new fuse of the same rating,
and make sure it fits tightly in the clips.
If it fits loosely, consult an authorised
HYUNDAI dealer.
G210201AFD-EA Main fuse
If the main fuse is blown, it must be
removed as follows:
1. Disconnect the negative battery cable.
2. Remove the nuts shown in the pictureabove.
3. Replace the fuse with a new one of the same rating.
4. Reinstall in the reverse order of removal.✽✽ NOTICE
If the main fuse is blown, consult an
authorised HYUNDAI dealer.
CAUTION
After checking the fuse box in the engine compartment, securely install the fuse box cover. If not,
electrical failures may occur from water leaking in.
ONF078038

Maintenance
60
7
Engine compartment
Description Fuse rating Protected component
ABS.1 40A ABS/ESP control module, Multipurpose check connector
ABS.2 20A ABS/ESP control module, Multipurpose check connector
I/P B+1 40A Fuse 23, 24, 30, 31, 32, 33, 34, 35
RR HTD 40A Defogger relay
BLOWER 40A Blower relay
Fusible link P/WDW 40A Power window relay, Fuse 16 IGN.2 40A Start relay, Ignition switch (IG2, START)
ECU RLY 30A Engine control unit relay
I/P B+2 30A Power connector 1/2, Fuse 21,22
IGN.1 30A Ignition switch (ACC, IG1)
ALT 150A Fusible Iink (ABS. 1, ABS. 2, RR HTD, BLOWER)
1 HORN 15A Horn relay
2 TAIL 20A Tail light relay
3 ECU 10A PCM
4 IG1 10A DSL TCU
5 DRL 15A Siren relay, DRL control module
6 FR FOG 15A Front fog light relay
Fuse 7 A/CON 10A A/C relay 8 F/PUMP 20A Fuel pump relay
9 DIODE - (Spare)
10 ATM 20A ATM control relay, TCU
11 STOP 15A Stop light switch
12 H/LP LO RH 15A (Spare)
13 S/ROOF 15A Sunroof control module

761
Maintenance
Description Fuse rating Protected component14 H/LP WASHER 20A Headlight washer motor
15 H/LP HI 20A Headlight relay (High)
16 ECU 10A DSL TCU, ALT
17 SNSR.2 10A Oxygen sensor, Fuel pump relay
18 SNSR.1 15A Mass air flow sensor, Crankshaft/Camshaft position sensor, Oil control valve, SMATRA
Fuse 19 SNSR.3 15A A/C relay, Cooling fan relay, Injectors 20 B/UP 10A Back up light switch, Pulse generator, Vehicle speed sensor
21 IGN COIL 20A Ignition coils, Condenser
22 ECU (IG1) 10A PCM, Pulse generator
23 H/LP LO 20A Headlight relay (Low)
24 ABS 10A ABS/ESP control module, Multipurpose check connector
Description Fuse rating Protected component
GLOW PLUG FUSIBLE LINK 80A Glow plug, Air heater
PTC HEATER #1 FUSIBLE LINK 50A PTC heater 1
PTC HEATER #2 FUSIBLE LINK 50A PTC heater 2
PTC HEATER #3 FUSIBLE LINK 50A PTC heater 3
FUEL FILTER HEATER FUSIBLE LINK 40A Fuel filter heater
GLOW PLUG RELAY - Glow plug relay
PTC HEATER RELAY #1 - PTC heater relay 1
PTC HEATER RELAY #2 - PTC heater relay 2
PTC HEATER RELAY #3 - PTC heater relay 3
FUEL FILTER HEATER RELAY - Fuel filter heater relay
Engine compartment (Diesel box)

Maintenance
68
7
G221000ANF-EA Headlight aiming adjustment
Before performing aiming adjustment,
make sure of the following.
1. Keep all tyres inflated to the correct
pressure.
2. Place the vehicle on level ground and press the front bumper & rear bumper
down several times. Place vehicle at adistance of 3m (118 in.) from the test
wall.
3. See that the vehicle is unloaded (except for full levels of coolant, engine
oil and fuel, and spare tyre, jack, and
tools). Have the driver or equivalent
weight placed in driver's seat.
4. Clean the headlight lenses and turn on the headlights. (Low beam) 5. Open the bonnet.
6. Draw the vertical line (through the cen-
tre of each headlight beam pattern)
and the horizontal line (through the
centre of each headlight beam pattern)
on the aiming screen. And then, draw
the parallel line at 30 mm (1.18 in.)
under the horizontal line.
7. Adjust each cut-off line of the low beam to the parallel line with a phillips
screwdriver - VERTICAL AIMING.
8. Adjust each cut-off line of the low beam to the each vertical line with a
phillips screwdriver - HORIZONTALAIMING.Adjustment after headlight assembly
replacement
If the vehicle has had front body repair
and the headlight assembly has beenreplaced, the headlight aiming should be
checked using the aiming screen as
shown in the illustration. Turn on the
headlight switch. (Low Beam Position)
G290A01NF
Vertical aiming
Horizontal aiming
G290B01JM-D H
H L30 mm
W
Horizontal line
Vertical line
“P”
Ground line
Cut-off line

777
Maintenance
G270202AUN
Purge Control Solenoid Valve (PCSV)
The purge control solenoid valve is con-
trolled by the Engine Control Module
(ECM); when the engine coolant temper-
ature is low during idling, the PCSV clos-
es so that evaporated fuel is not taken
into the engine. After the engine warms-
up during ordinary driving, the PCSV
opens to introduce evaporated fuel to the
engine.
G270300AUN
3. Exhaust emission control system
The Exhaust Emission Control System is
a highly effective system which controls
exhaust emissions while maintaining
good vehicle performance.
G270301AUN
Vehicle modifications
This vehicle should not be modified.
Modification of your vehicle could affect
its performance, safety or durability and
may even violate governmental safety
and emissions regulations.
In addition, damage or performance
problems resulting from any modification
may not be covered under warranty. G270302AUN-EA
Engine exhaust gas precautions (car-
bon monoxide)
Carbon monoxide can be present with other exhaust fumes. Therefore, if you
smell exhaust fumes of any kind inside
your vehicle, have it inspected and
repaired immediately. If you ever sus-
pect exhaust fumes are coming into
your vehicle, drive it only with all the
windows fully open. Have your vehicle
checked and repaired immediately. Do not operate the engine in confined
or closed areas (such as garages) any
more than what is necessary to move
the vehicle in or out of the area.
When the vehicle is stopped in an open area for more than a short time
with the engine running, adjust the
ventilation system (as needed) to draw
outside air into the vehicle.
Never sit in a parked or stopped vehi- cle for any extended time with the
engine running.
When the engine stalls or fails to start, excessive attempts to restart the
engine may cause damage to theemission control system.
WARNING - Exhaust
Engine exhaust gases contain car-
bon monoxide (CO). Though
colourless and odourless, it is dan-
gerous and could be lethal if
inhaled. Follow the instructions
following to avoid CO poisoning.

95
Specifications
I040100ANF-EA Recommended SAE viscosity
number Engine oil viscosity (thickness) has an
effect on fuel economy and cold weather
operation (engine start and engine oil
flowability). Lower viscosity engine oils
can provide better fuel economy and cold
weather performance, however, higher
viscosity engine oils are required for sat-
isfactory lubrication in hot weather. Using
oils of any viscosity other than those rec-ommended could result in engine dam-
age.When choosing an oil, consider the range
of temperature your vehicle will be oper-
ated in before the next oil change.Proceed to select the recommended oil
viscosity from the chart.
CAUTION
Always be sure to clean the area
around any filler plug, drain plug, ordipstick before checking or drain-
ing any lubricant. This is especiallyimportant in dusty or sandy areas and when the vehicle is used onunpaved roads. Cleaning the plug
and dipstick areas will prevent dirtand grit from entering the engineand other mechanisms that could
be damaged.
Temperature Range for SAE Viscosity Numbers
Temperature
Petrol
Engine Oil *
1
°C
(°F)-30 -20 -10 0 10 20 30 40 50 -10 0 20 40 60 80 100 120
Diesel
Engine Oil
5W-30
15W-40
10W-30
0W-30 *2
1. For better fuel economy, it is recommended to use the engine oil of a viscosity grade SAE 5W-
20,5W-30 (API SJ, SL / ILSAC GF-3). However, if the engine oil is not available in your coun-
try, select the proper engine oil using the engine oil viscosity chart.
2. It is only for extreme cold area and to be restricted by driving condition and area. (Especially, not recommended for sustained high loaded and high speed operation.)
20W-50
10W-30
15W-40
5W-20, 5W-30