2015 Hyundai Sonata Hybrid ECU

Maintenance
60
7
Engine compartment sub fuse panel (Sub-relay box)
Engine compartment main fuse panel (Engien junction fuses)
Description Fuse rating Protected component
OPCU 80A OPCU Relay
C/FAN 60A C/FAN Relay
INVERTER 10A Low DC Converter, Hybrid Inverter BMS 10A BMS Control Module
AHB 10A AHB Control Module
EWP 10A Electrical Water Pump
Relay NO. Relay Name Type
RLY1 OPCU Relay PLUG MINI
RLY2 C/FAN Relay PLUG MINI
Relay No. Relay Name Type
E41 ACC Relay PLUG MICRO
E42 RR HTD Relay PLUG MICRO
E43 - PLUG MICRO
E44 - PLUG MICRO
E45 EWP Relay PLUG MICRO
E46 - PLUG MICRO
E47 Deicer Relay PLUG MICRO
E48 - PLUG MICRO
E49 IG1 Relay PLUG MICRO
E50 IG2 Relay PLUG MICRO
E51 Wiper Relay PLUG MICRO
E52 T/Turn Door Unlock Relay PLUG MICRO
E53 - PLUG MICRO
E54 Blower Relay PLUG MICRO
EMS BOX RLY.1 Horn Relay
PLUG MICRO
RLY.2 F/Pump Relay PLUG MICRO
RLY.3 ECU Relay PLUG MINI

Maintenance
68
7
6. Remove the screws and package tray.
7. Remove the fabric and nuts.
8. Change the HMSL to a new one.
9. Reinstall all components in the reverse
order of removal.
10. Connect the seat warmer cable again.
11. Reinstall the screws for the seatback.
12. Reinstall the cushion.
License plate light bulb replace-
ment
1. Loosen the retaining screws with a philips head screwdriver.
2. Remove the socket by turning it counterclockwise.
3. Remove the bulb by pulling it straight out.
4. Install a new bulb.
5. Reinstall the bulb assembly securely with the retaining screws.
OYF079037L

H12
The hybrid battery air intake is located
behind the rear seats.The hybrid battery
air intake is used to cool the hybrid bat-
tery. If the hybrid battery air intake is
blocked, the hybrid battery may overheat.
Do not obstruct the air intake with
objects.
✽ ✽NOTICE
Clean the air intake for the hybrid bat-
tery regularly with a dry cloth.
THE COMPONENTS OF HYBRID VEHICLE (CONT.)
WARNING
Never wash the air intake of the
hybrid battery with a wet cloth. If
any water enters the air intake of
the hybrid battery, the hybrid bat-
tery may cause an electric shock.
The electric shock may cause seri-
ous damage, injury or death.
The hybrid battery is composed of lithium-ion polymer. If you handle
a hybrid battery improperly, it is
dangerous to the environment and
may cause electrical shock and
severe burns. It may result in death
or serious injury.
Do not spill liquid over the air intake of the hybrid battery. Doing so is
very dangerous and it may cause
electric shock or serious injury.
Do not cover the air intake with objects.
Do not input any objects into the air intake of the hybrid battery.
Doing so may cause loss of air
intake to the hybrid battery. If any
objects enters the air intake con-
tact your Hyundai dealer as soon
as possible.
(Continued)
(Continued)
Never place a container of liquidon or near the air intake. If the liq-
uid spills, the hybrid battery locat-
ed in the trunk may be damaged.
Secure all loads in the trunk from moving while the vehicle is in
motion. If a sharp or heavy load
were to impact or pierce the inte-
rior trunk wall the hybrid battery
system could be damaged and/or
lose function.
OYFH021006N