ECU HYUNDAI SONATA HYBRID 2019 Service Manual

6-32
What to do in an emergency
Emergency Towing (if equipped)
If towing is necessary, we recom-
mend you to have it done by an
authorized HYUNDAI dealer or a
commercial tow truck service.If towing service is not available in an
emergency, your vehicle may be
temporarily towed using a cable or
chain secured to the emergency tow-
ing hook at the rear of the vehicle.
Use extreme caution when towing
the vehicle with a cable or chain. A
driver must be in the vehicle to steer
it and operate the brakes.
Towing should be done only on a
solid ground for a short distance and
at a low speed.
Also, the wheels, axles, power train,
steering and brakes must all be ingood condition.
Always follow these emergency tow-ing precautions:
Place the Engine Start/Stop button
in the ACC 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.
OLF067026
OLF067027
■Front
■Rear

7-25
7
Maintenance
WWAASSHH EERR FF LLUU IIDD
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 brakepedal is depressed with 20 kg (44
lbs, 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
PP AA RRKK IINN GG BB RRAA KKEE
ODH053142
To prevent serious injury or
death, take the following safetyprecautions when using washerfluid:
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 tohumans and animals.
Keep washer fluid away from
children and animals.
WARNING
OLFH074008

7-33
7
Maintenance
For best battery service
Keep the battery securely mount-ed.
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
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 Engine Start/Stop
button to the OFF position.
Keep all flames, sparks, or
smoking materials away from
the battery.
Always work outdoors or in an area with plenty of ventilation.
Wear eye protection when
checking the battery during
charging.
The battery must be removed
from the vehicle and placed ina well ventilated area.
(Continued)
WARNING
OLFH047757
OLFP047757
■Hybrid
■Plug-in hybrid

7-60
Maintenance
Fuse NameFuse ratingCircuit Protected
MODULE 510AFront Console Switch, Active Air Flap Unit, BMS Control Module, Fuel Filler Door & Trunk Lid Switch,
Smart Cruise Control Unit, Tire Pressure Monitoring Mudule, Driver IMS Module, VPD,
Multi-Function Camera Unit
IG1 25APCB Block (Fuse - TCU2/ECU3/HEV ECU2/OPCU2/EWP/AHB3)
WASHER 15AMultifunction Switch (Wiper Low & Washer Switch)
POWER
OUTLET20ACigarette Lighter & Front Power Outlet #2
GATEWAY10AIGPM (Gateway)
A/BAG 15ASRS Control Module, Occupant Detection Sensor
START7.5ATransmission Range Switch, HPCU
Driver's side fuse panel

7-63
7
Maintenance
Engine compartment main fuse panel
Fuse No.Fuse NameFuse RatingCircuit Protected
MULTI FUSE(TYPE A)
IG230APCB Block (IG2 Relay)
BLOWER40ABlower Relay
2AHB40AIntegrated Brake Actuation Unit, Multipurpose Check Connector
1AHB40AIntegrated Brake Actuation Unit, Multipurpose Check Connector
REAR HEATED50ARear Heated Relay
3B+50AIGPM (IPS2 (4CH), IPS3 (4CH), Fuse - STOP LAMP/MODULE 1)
5
B+50APCM Block
(Fuse - WIPER1/HORN/BATTERY C/FAN/AMS/TCU1/ECU2/Engine Control Relay)
EEWP60AElectric Water Pump
MDPS 180AMDPS Unit
MULTI FUSE
(TYPE B)
IG140APCB Block (IG1Relay)
3POWER
OUTLET
40APower Outlet Relay

7-64
Maintenance
Engine compartment main fuse panel
Fuse No.Fuse NameFuse RatingCircuit Protected
MULTI FUSE(TYPE B)
2B+50AIGPM (IPS1 (4CH), IPS4 (1CH), IPS5 (4CH), IPS6 (2CH), IPS7 (1CH), Fuse - AMP)
1B+60AIGPM (Fuse - P/SEAT DRV/P/SEAT PASS/S/HEATER RR/SUNROOF1/SUNROOF2/
SAFETY POWER WINDOW LH/ SAFETY POWER WINDOW RH/TRUNK/CURTAIN/
MODULE1/Power Window Relay)
COOLING
FA N60ACooling Fan Relay
FUSE
FUEL PUMP20AFuel Pump Relay
1OPCU20AElectric Oil Pump Unit
1
HEV ECU10AHPCU
H/LAMP HI20AHead Lamp High Relay
4B+40AIGPM (Leak Current Autocut Device Fuse - INTERIOR LAMP/MEMORY1/MEMORY2/
MULTI MEDIA, 40A Fuse -BRAKE SWITCH/SMART KEY/S/HEATER FRT/
BATTERY MANAGEMENT/DR LOCK)
2EPB30AElectric Parking Brake Module
1
EPB30AElectric Parking Brake Module

7-66
Maintenance
Engine compartment main fuse panel - PCB Block
Fuse NameFuse ratingCircuit Protected
ECU 310APCM
HEV ECU 210AHPCU
POWER
OUTLET 120AFront Power Outlet #1
HORN20AHorn Relay, ICM Relay Box (Burglar Alarm Horn Relay)
WIPER 130AWiper Power Relay
BATTERY C/FAN15AE/R Junction Block (Battery C/Fan Relay)
TCU 215ATransmission Range Switch, Electric Water Pump (Engine)
AHB 310AIntegrated Brake Actuation Unit
POWER
OUTLET 220ARear Power Outlet
B/UP LAMP10APCM, Transmission Range Switch, Electro Chromic Mirror, Rear Combination Lamp (In) LH/RH
SENSOR 115AOxygen Sensor (Up)/(Down)

7-67
7
Maintenance
Engine compartment main fuse panel - PCB Block
Fuse NameFuse ratingCircuit Protected
IGN COIL20AIgnition Coil #1/#2/#3/#4
ECU 210APCM
TCU 110APCM
OPCU 210AElectric Oil Pump Unit (Control)
EWP10AElectric Water Pump (HEV)
ECU 120APCM
SENSOR 210A
Mass Air Flow Sensor, Oil Control Valve #1 (Intake), Oil Control Valve #2 (Exhaust),
Purge Control Solenoid Valve, Camshaft Position Sensor #1 (Intake),
Camshaft Position Sensor #2 (Exhaust),
E/R Junction Block (Cooling Fan Relay, Fuel Pump Relay)
AMS10ABattery Sensor

7-76
Maintenance
High mounted stop lamp
1. Remove the rear seat cushionassembly.
2. Remove the rear seat back assem- bly.
3. Slightly remove the rear door weather-strip.
4. Remove the rear door scuff trim.
5. Remove the rear pillar trim.
6. Remove the rear seat belt lower anchor.
7. Remove the rear package tray trim.
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.
OLF077055
OLF077066OLF047034
OLF077071
■Map lamp - with sunroof
■Room lamp - with sunroof