For the electric connection a standard
connector should be used which is
generally placed on a special bracket
normally fastened to the towing device,
and a special ECU for external trailer
light control must be installed on the
vehicle. For the electrical connection, 7
or 13 pin 12 V DC connections are to
be used (CUNA/UNI and ISO/DIN
Standards). Follow the instructions
provided by the vehicle manufacturer
and/or the tow hitch manufacturer.
An electric brake (or electric winch)
should be supplied directly by the
battery through a cable with a cross
section of no less than 2.5 mm
2
.
IMPORTANT Electric brakes or other
devices must be used with engine
running.
In addition to the electrical branches,
the vehicle's electric system can only
be connected to the supply cable for an
electric brake and to the cable for an
internal light, though not above 15
W. For connections use the preset
control unit with battery cable no less
than 2.5 mm
2
.
IMPORTANT The trailer tow hook
contributes to the length of the vehicle.
When installing on long wheelbase
versions, it is only possible to install
removable tow hooks because the total
vehicle length limit of 6 metres is
exceeded.
If no trailer is fitted, the hook must be
removed from the attachment base and
it must not exceed the vehicle's
original length.
IMPORTANT If you wish to leave the
tow hook fitted without towing a trailer,
it is advisable to contact a Fiat
Dealership for the relevant system
update operations because the tow
hook could be detected as an obstacle
by the central sensors.
Installation diagram for
Van versions fig. 174
The tow hook structure must be
fastened in the points shown by the
symbol Ø using a total of 6 M10x1.25
screws and 4 M12 screws.
The internal back plates must be at
least 5 mm thick. MAX LOAD ON
BALL: 100/120 kg according to the
payload (see “Weights” table in the
“Technical data” section).
142)
To install a tow hook, the bumpers
must be trimmed as described in the
supplier's installation kit.
191