2019 Hyundai Sonata ECU

Always follow these emergency tow-
ing precautions:
Place the ignition switch in theACC position so the steering wheel
is not locked.
Place the shift lever in N (Neutral).
Release the parking brake.
Depress the brake pedal with more force than normal since you will
have reduced braking perform-
ance.
More steering effort will be required because the power steer-
ing system will be disabled.
Use a vehicle heavier than your own to tow your vehicle.
The drivers of both vehicles should communicate with each other fre-
quently.
Before emergency towing, check that the hook is not broken or dam-
aged.
Fasten the towing cable or chain securely to the hook.
Do not jerk the hook. Apply steady and even force. Use a towing cable or chain less
than 16 feet (5 m) long. Attach a
white or red cloth (about 12 inches
(30 cm) wide) in the middle of the
cable or chain for easy visibility.
Drive carefully so the towing cable or chain remains tight during tow-
ing.
Before towing, check the automat- ic transmission for fluid leaks under
your vehicle. If the automatic trans-
mission fluid is leaking, flatbed
equipment or a towing dolly must
be used.
ODH063025
To avoid damage to your vehicle
and vehicle components when
towing:
Always pull straight ahead
when using the towing hooks.
Do not pull from the side or at
a vertical angle.
Do not use the towing hooks
to pull a vehicle out of mud,
sand or other conditions from
which the vehicle cannot be
driven out under its own
power.
Limit the vehicle speed to 10
mph (15 km/h) and drive less
than 1 mile (1.5 km) when tow-
ing to avoid serious damage
to the automatic transmis-
sion.
CAUTION
What to do in an emergency
6-39
6

7-30
Maintenance
W
WA
AS
SH
H E
ER
R
F
F L
LU
U I
ID
D
Checking the Washer Fluid
Level
Check the fluid level in the washer
fluid reservoir and add fluid if neces-
sary. Plain water may be used if
washer fluid is not available.
However, use washer solvent with
antifreeze characteristics in cold cli-
mates to prevent freezing.
Checking the Parking Brake
Foot type
Check whether the stroke is within
specification when the parking brake
pedal is depressed with 44 lb (20 kg,
196 N) of force. Also, the parking
brake alone should securely hold the
vehicle on a fairly steep grade. If the
stroke is more or less than specified,
have the parking brake adjusted by
an authorized HYUNDAI dealer.
Stroke : 3 notch
OLF074009NODH053142
P
P A
A R
RK
K I
IN
N G
G
B
B R
RA
A K
KE
E
To prevent serious injury or
death, take the following safety
precautions when using washer
fluid:
Do not use engine coolant or
antifreeze in the washer fluid
reservoir.
Engine coolant can severely
obscure visibility when
sprayed on the windshield and
may cause loss of vehicle con-
trol resulting in an accident or
damage to paint and body trim.
Do not allow sparks or flame to
contact the washer fluid or the
washer fluid reservoir. Washer
fluid may contain alcohol and
can be flammable.
Do not drink washer fluid and
avoid contact with skin.
Washer fluid is poisonous to
humans and animals.
Keep washer fluid away from
children and animals.
WARNING

7-38
Maintenance
When you do not use the vehicle for a long time in a low tempera-
ture area, disconnect the battery
and keep it indoors.
Always charge the battery fully to prevent battery case damage
in low temperature areas.
For Best Battery Service
Keep the battery securely mounted.
Keep the battery top clean and dry.
Keep the terminals and connec-tions clean, tight, and coated with
petroleum jelly or terminal grease.
Rinse any spilled acid from the bat- tery immediately with a solution of
water and baking soda.
Battery Recharging
NOTICE
CALIFORNIA PROPOSITION 65
WARNING
Battery posts, terminals, and
related accessories contain
lead and lead compounds,
chemicals known to the State of
California to cause cancer, birth
defects and reproductive harm.
Batteries also contain other
chemicals known to the State of
California to cause cancer.
Wash hands after handling.
WARNING
OLF074020
Always follow these instructions
when recharging your vehicle’s
battery to avoid the risk of SERI-
OUS INJURY or DEATH from
explosions or acid burns:
Before performing mainte-
nance or recharging the bat-
tery, turn off all accessories and
place the ignition switch to the
LOCK/OFF position.
Keep all flames, sparks, or
smoking materials away from
the battery.
Always work outdoors or in a
well ventilated area.
Wear eye protection when
checking the battery during
charging.
The battery must be removed
from the vehicle and placed in
a well ventilated area.
(Continued)
WARNING

7-63
7
Maintenance
Instrument panel fuse panel
Fuse Name Fuse rating Protected Component
HTD STRG15ABCM
5 MODULE10A
Front Console Switch, Tire Pressure Monitoring Module, Lane Keeping Assist Module,
Smart Cruise Control Unit, Fuel Filler Door & Trunk Lid Switch, AEB Module,
Head Lamp LH/RH (DBL), Rear Parking Assist Sensor LH/RH,
Rear Parking Assist Sensor LH/RH (Center), Blind Spot Detection Radar LH/RH
IG125APCB Block (Fuse - VACUUM PUMP2/ TCU2/ ECU3/ ABS3)
WASHER15AMultifunction Switch (Wiper Low & Washer Switch)
POWER OUTLET20AFront Power Outlet
A/BAG15ASRS Control Module, Occupant Detection Sensor
START7.5A[W/O Smart Key & IMMO.] ICM Relay Box (Burglar Alarm Relay)
[With Smart Key / IMMO.]
Transaxle Range Switch, PCM (G4KJ/G4KH)
10 MODULE10ABCM

7-65
7
Maintenance
Engine compartment main fuse panel
Fuse NameFuse rating Protected Component
MULTIFUSE
(TYPE A)
IG230A[Without Smart Key] (Start Relay), Ignition Switch,
[With Smart Key] (Start Relay), PCB Block (IG2 Relay)
3 TCU40A[G4FJ - DCT] TCM
BLOWER40A(Blower Relay)
1 ABS40AESC Module
REAR HEATED50A(Rear Heated Relay)
1 B+50ASmart Junction Block (IPS2 (4CH), IPS3 (4CH))
1 COOLING FAN50A[G4KH/G4FJ] (Cooling Fan Relay), [G4KJ] (Cooling Fan Relay)
2 COOLING FAN60A[G4KH/G4FJ] (Cooling Fan Relay)
1 MDPS80AMDPS Unit (Column Type)
MULTI FUSE
(TYPE B)
2 ABS30AESC Module, Multipurpose Check Connector
IG140A[Without Smart Key] Ignition Switch, [With Smart Key] PCB Block (IG1/ACC Relay)
4 TCU40A[G4FJ - DCT] TCM
3 POWER OUTLET40A(Power Outlet Relay)
2 B+50ASmart Junction Block (IPS1 (4CH), IPS4 (4CH), IPS5 (4CH), IPS6 (2CH), IPS7 (1CH)\
,
Fuse - AMP)
5 B+60APCB Block (Engine Control Relay, Fuse - TUC1, ECU1, HORN, AMS, WIPER)
1 B+60ASmart Junction Block (Power Window Relay, Fuse - SAFETY POWER WINDOW LH,
P/SEAT PASS,SAFETY POWER WINDOW RH, P/SEAT DRV, MODULE1, P/WDW LH,
P/WDW RH, TRUNK, S/HEATER RR, SUNROOF2, SUNROOF1)
2 MDPS100AMDPS Unit (Rack Type)

7-67
7
Maintenance
Engine compartment main fuse panel - PCB Block
Fuse Name Fuse rating Protected Component
FUSE
2 VACUUM PUMP10A[G4KH/G4FJ] Vacuum Pump, Vacuum Switch
3 ECU10APCM/ECM
1 POWER OUTLET20AFront Cigarette Lighter & Power Outlet #2
FUEL PUMP20AFuel Pump Relay
HORN20AHorn Relay, ICM Relay Box (Burglar Alarm Horn Relay)
WIPER30AFront Wiper (Low) Relay, Front Wiper (High) Relay
2 TCU15ATransmission Range Switch, TCM (G4FJ-DCT)
3 ABS10AESC Module
2 POWER OUTLET20ARear Power Outlet
B/UP LAMP10ATransmission Range Switch, PCM (G4KJ/G4KH-A/T), TCM (G4FJ-DCT),
Electro Chromic Mirror, Rear Combination Lamp (IN) LH/RH
1 SENSOR15AOxygen Sensor (Up/Down)
2 SENSOR15A
Purge Control Solenoid Valve, Canister Close Valve, RCV Control Solenoid Valve,
Fuel Pump Relay, E/R Junction Block (Cooling Fan High Relay, Fuel Pump Relay),
[G4KJ/G4KH] Variable Intake Solenoid Valve, Oil Control Valve (Exhaust),
[G4FJ] Oil Control Valve #1/#2 (Intake/Exhaust)
1 ECU10APCM/ECM
1 TCU10APCM (G4KJ/G4KH-A/T), TCM (G4FJ-DCT)
1 ECU10APCM/ECM
IGN COIL20AIgnition Coil #1/#2/#3/#4
INJECTOR15ANot Used
AMS10ABattery Sensor

7-75
7
Maintenance
7. Remove the rear package traytrim.
8. Remove the high mounted stop lamp after disengaging the mount-
ing clip.
9. Install a new LED lamp.License Plate Light Bulb
Replacement
1. Loosen the lens retaining screws with a philips head screwdriver.
2. Remove the lens.
3. Remove the bulb by pulling it straight out.
4. Install a new bulb.
5. Reinstall the lens securely with the lens retaining screws.
Interior Light Bulb
Replacement
Map lamp and Room lamp
If the LED lamp does not operate,
have the vehicle checked by an
authorized HYUNDAI dealer.
■Map lamp - with sunroof
OLF076080N
OLF077071
■Room lamp - with sunroofOLF077066