Hyundai i-30: Trailer towing / Trailer towing equipment
Towbars

Information
The mounting hole for towbars are
located on both sides of the underbody
behind the rear tyres.
It's important to have the correct towbar
equipment. Crosswinds, large
trucks going by, and rough roads are
a few reasons why you’ll need the
right towbar. Here are some rules to
follow:
- Do you have to make any holes in
the body of your vehicle when you
install a trailer towbar? If you do,
then be sure to seal the holes later
when you remove the towbar. If you
don’t seal them, carbon monoxide
(CO) from your exhaust can get
into your vehicle, as well as dirt
and water.
- The bumpers on your vehicle are
not intended for towbars. Do not
attach rental towbars or other
bumper-type towbars to them. Use
only a frame-mounted towbar that
does not attach to the bumper.
- A HYUNDAI trailer towbar accessory
is available at a HYUNDAI authorised
repairer.
Safety chains
You should always attach chains
between your vehicle and your trailer.
Instructions about safety chains may
be provided by the towbar manufacturer
or trailer manufacturer. Follow
the manufacturer’s recommendation
for attaching safety chains. Always
leave just enough slack so you can
turn with your trailer. And, never
allow safety chains to drag on the
ground.
Trailer brakes
If your trailer is equipped with a braking
system, make sure it conforms to
your country’s regulations and that it
is properly installed and operating
correctly.
If your trailer weighs more than the
maximum trailer weight without trailer
brakes loaded, then it needs its
own brakes and they must be adequate.
Be sure to read and follow the
instructions for the trailer brakes so
you’ll be able to install, adjust and
maintain them properly. Be sure not
to modify your vehicle's brake system.
WARNING
Do not use a trailer with its own
brakes unless you are absolutely
certain that you have properly
set up the brake system. This
is not a task for amateurs. Use
an experienced, competent trailer
shop for this work.
Here are some important points if
you decide to pull a trailer:
Consider using a sway control.You
can ask a trailer towbar dealer
about sway control...
Towing a trailer requires a certain
amount of experience. Before setting
out for the open road, you must get
to know your trailer. Acquaint yourself
with the feel of handling and
braking with the added weight of the
trailer...
Other information:
Component Location
1. BCM (Body
Control Module)
2. Ultrasonic
sensor
•
Rear parking assist control unit function is built in BCM (Body
Control Module)...
Components and components location
Components
Connector [A]
Pin NO
Function
Pin NO
Function
1
Low
4
Middle Low
2
Common
5
Middle High
3
Ground
6
High
Connector [B]
Pin NO
Function
Pin NO
Function
1
Battery (+)
21
IGN2
2
ISG B+
22
IGN1
3
ILL+ (TAIL)
23
-
4
Sensor REF (+5V)
24
-
5
Mode actuator feedback
25
-
6
Temperature actuator feedback
26
-
7
Intake actuator feedback
27
MAX Blower ON Signal
8
EVAP Sensor (+)
28
PTC Relay 3
9
AMB Sensor (+)
29
PTC Relay 2
10
Mode actuator (Vent)
30
PTC on signal
11
Mode actuator (Defrost)
31
Detent OUT (-)
12
Temperature actuator (Cool)
32
-
13
Temperature actuator (Warm)
33
C_CAN High
14
Intake actuator (Fresh Air)
34
C_CAN Low
15
Intake actuator (Recirculated Air)
35
-
16
HTD (Rear defog indicator)
36
ECV +
17
Rear defog switch
37
ECV- (Ground)
18
-
38
Sensor ground
19
Blower ON signal to common
39
Ground
20
ILL- (RHEO)
40
Ground
Repair procedures
Replacement
1...