2021 HYUNDAI ELANTRA HYBRID check engine

09
9-51
Engine compartment fuse panel
Fuse NameFuse Rating
Circuit Protected
WIPER 25A
Wiper Relay
HORN 15A
Horn Relay
IGN COIL 20A
Ignition Coil #1 ~ #4
ECU2 15A
ECM
SENSOR3 10A
E/R Junction Block (Fuel Pump Relay)
SENSOR2 10ACamshaft Position Sensor #1/#2 (Intake/Exhaust), Mass
Air Flow Sensor, ELCM, Oil Control Valve #1/#2 (Intake/
Exhaust),
Purge Control Solenoid Valve
ECU3 10A
ECM, HPCU, Clutch Actuator
SENSOR1 15A
Oxygen Sensor (Up/Down)
IEB 4 10A
IDB Unit, Multipurpose Check Connector
EWP 3 10A
Auxiliary Electric Water Pump
ECU1 20A
ECM
TCU2 15A
Transaxle Range Switch, TCM

09
9-71
3. Exhaust Emission Control
System
The Exhaust Emission Control System is
a highly effective system which controls
exhaust emissions while maintaining
good vehicle performance.
When the engine starts or fails to start,
excessive attempts to restart the engine
may cause damage to the emission
system.
Engine exhaust (carbon monoxide)
precautions
• Carbon monoxide can be present
with other exhaust fumes. If you smell
exhaust fumes of any kind in your
vehicle, drive with all the windows
fully open. Have your vehicle checked
and repaired immediately.
WARNING
Engine exhaust gases contain carbon
monoxide (CO). Though colorless and
odorless, it is dangerous and could be
lethal if inhaled. Follow the instructions
on this page to avoid CO poisoning.
WARNING
CALIFORNIA PROPOSITION 65
WARNING
Engine exhaust and a wide variety of
automobile components and parts,
including components found in the
interior furnishings in a vehicle, contain
or emit chemicals known to the State
of California to cause cancer and
birth defects and reproductive harm.
In addition, certain fluids contained
in vehicles and certain products of
component wear contain or emit
chemicals known to the State of
California to cause cancer and birth
defects or other reproductive harm. •
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
vehicle 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 the
emission control system.

I
I-5
E
Emission Control System
........................................................................\
............9-70
Engine Compartment
........................................................................\
.............2-6/ 9-3
Engine coolant/Inverter coolant
........................................................................\
...9-18
Changing Engine Coolant ........................................................................\
........9-21
Checking the Coolant Level ........................................................................\
.....9-18
Engine Number
........................................................................\
............................2-14
Engine Oil
........................................................................\
....................................9-16
Checking the Engine Oil and Filter ..................................................................9-17
Checking the Engine Oil Level ........................................................................\
9-16
Engine specification ........................................................................\
....................... 2-7
Explanation of Scheduled Maintenance Items
....................................................9-14
Dual clutch transmission fluid ........................................................................\
.9-15
HSG (Hybrid Starter & Generator) Belt .........................................................9-14
Exterior Lights
........................................................................\
.............................5-72
Battery saver function ........................................................................\
..............5-75
Headlamp delay function ........................................................................\
.........5-75
High beam operation ........................................................................\
................5-73
Lighting control ........................................................................\
........................5-72
Turn signals and lane change signals ...............................................................5-74
Exterior Overview
........................................................................\
.........................2-2
F
Forward Collision–Avoidance Assist (FCA) (front view camera only)
................7-2
Function malfunction and limitations ................................................................7-7
Function operation ........................................................................\
......................7-5
Function settings ........................................................................\
........................7-3
Forward Collision–Avoidance Assist (FCA) (sensor fusion)
.............................7-14
Function malfunction and limitations ..............................................................7-22
Function operation ........................................................................\
....................7-18
Function settings ........................................................................\
......................7-16
Fuel filler door
........................................................................\
.............................5-69
Fuel Requirements
........................................................................\
.........................1-5
Fuses
........................................................................\
............................................9-42
Engine Compartment Panel Fuse Replacement ...............................................9-44
Fuse/Relay Panel Description ........................................................................\
..9-45
Instrument Panel Fuse Replacement ................................................................9-43

Index
I-6
G
Guide to Hyundai Genuine Parts
........................................................................\
...1-3
H
Hazard Warning Flasher
........................................................................\
................8-2
HEV (Hybrid Electric Vehicle) System
.................................................................1-9
High Beam Assist (HBA)
........................................................................\
............5-76
Detecting sensor (Front view camera) .............................................................5-76
Function malfunction and limitations ..............................................................5-77
Function operation ........................................................................\
....................5-77
Function settings ........................................................................\
......................5-76
Highway Driving Assist (HDA)
........................................................................\
.7-92
Function malfunction and limitations ..............................................................7-96
Function operation ........................................................................\
....................7-94
Function settings ........................................................................\
......................7-93
Hood
........................................................................\
............................................5-62
How to Use This Manual
........................................................................\
...............1-4
Hybrid Starter & Generator (HSG) Belt
..............................................................9-22
Checking the Hybrid Starter & Generator (HSG) Belt ....................................9-22
Hyundai Motor America
........................................................................\
................1-2
I
If the 12 Volt Battery Is Discharged
......................................................................8-4
Before Jump Starting ........................................................................\
..................8-4
Jump Starting........................................................................\
.............................. 8-5
If the Engine Overheats
........................................................................\
.................8-7
If the Engine Will Not Start
........................................................................\
...........8-3
If you Have a Flat Tire (With spare tire)
.............................................................8-15
Changing Tires ........................................................................\
.........................8-16
Jack and Tools ........................................................................\
..........................8-15
Ignition Switch
........................................................................\
..............................6-4
Engine Start/Stop Button ........................................................................\
............6-7
Key Ignition Switch ........................................................................\
...................6-4
Important Safety Precautions
........................................................................\
.........3-2
Air Bag Hazards ........................................................................\
.........................3-2
Always Wear Your Seat Belt ........................................................................\
......3-2
Control Your Speed ........................................................................\
....................3-2
Driver Distraction ........................................................................\
.......................3-2