2013 Hyundai Sonata Hybrid ECU

757
Maintenance
Engine compartment main fuse panel
Description Fuse rating Protected component
MULTI
FUSEB+3 60AI/P Junction Box (Power Window Relay, Fuse - TRUNK 10, S/HEATER FRT 15A,
SAFETY POWER WINDOW 25A, MODULE 3 7.5A, PDM 25A, Power Connector - AUDIO 15A)
IG 1 40A Smart Key - IG 1 Relay, ACC Relay
EMS 40A EMS Box (Fuse - HORN 15A, ECU 3 10A, ECU 1 30A, F/PUMP 20A)
RR HTD 40A RR HTD Relay
BLOWER 40A Blower Relay
B+4 60AI/P Junction Box (Fuse - P/SEAT DRI 30A, AMP 30A, START 2 7.5A, BMS 10A, IPS 2, IPS 3,
IPS 5, IPS 8)
MDPS 80A EPS Control Module
C/FAN LO 40A C/FAN LO Relay
FUSEB+2 50AI/P Junction Box (Fuse - SUNROOF 20A, DR LOCK, IPS 1, IPS 4, IPS 6, IPS 7, IPS 9,
Power Connector - ROOM LP 10A)
WIPER 10A PCM
RR HTD IND 10A A/C Control Module
LDC 10A Low DC Converter, Hybrid Inverter
BMS C/FAN 15A BMS Blower Motor Relay
TCU 1 20A PCU
STOP LP 15A Stop Lamp Relay, HAC Relay
DEICER 20A Deicer Relay
ECU 2 20A PCU
HCU 20A Hybrid Control
IG 2 30A Smart Key - IG 2 Relay
AHB 1 40A AHB Control Module
OIL PUMP 1 20A Electric Oil Pump Unit

Maintenance
58 7
Description Fuse rating Protected component
FUSEESC 1 40A EBS Control Module
ESC 2 30A EBS Control Module
AHB 2 30A AHB Control Module
ECU 4 10A PCM
TCU 2 15A Transaxle Range Switch
ESC 3 10AHAC Relay, Stop Lamp Switch, Multipurpose Check Connector, EBS Control Module,
AHB Control Module
OIL PUMP 2 10A Hybrid Fuse & Relay Box (OPCU Relay), Active Air Flap, Electric Oil Pump Unit
B/UP LP 10A A/V & Navigation Head Unit, Rear Combination Lamp (IN) LH/RH, BCM, Electro Chromic Mirror

759
Maintenance
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 HI Relay
Relay No. Relay Name Type
E41 ACC Relay PLUG MICRO
E42 RR HTD Relay PLUG MICRO
E43 - PLUG MICRO
E44 C/FAN LO Relay PLUG MICRO
E45 AUX Water Pump 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 RelayPLUG MICRO
E53 HAC Realy PLUG MICRO
E54 Blower Relay PLUG MICRO
EMS
BOXRLY.1 Horn Relay PLUG MICRO
RLY.2 F/Pump Relay PLUG MICRO
RLY.3 ECU Relay PLUG MINI

767
Maintenance
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 liquid
on 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