2017 FIAT 500X ECU

Do not exceed the speed limits specific
to each country you are driving in, in the
case of vehicles towing trailers. In any
case, the top speed must not exceed
100 km/h.
Any electric brake must be powered
directly by the battery through a cable
with a cross-section of no less than
2.5 mm
2. In addition to the electrical
branches, the vehicle electrical system
can only be connected to the supply
cable for an electric brake and to the
cable for an internal light for the trailer,
not exceeding 15 W. For connections,
use the preset control unit with a
battery cable with section not less than
2.5 mm
2. The use of auxiliary loads
other than external lights (e.g. electric
brake) must take place with engine
running.
INSTALLING A TOW
HOOK
The towing device should be fastened
to the body by specialised personnel
according to any additional and/or
integrative information supplied by the
Manufacturer of the device. It must also
meet current regulations with reference
to Directive 94/20/EC and subsequent
amendments.
For any version the towing device used
must be right for the towable weight of
the vehicle on which it is to be installed.
For the electrical 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. 7 or 13-pin 12 V DC
connections should be used
(CUNA/UNI and ISO/DIN Standards).
Follow any instructions provided by the
vehicle manufacturer and/or the towing
device manufacturer.
137

Assembly diagram
The tow hook structure must be secured to the body in the points shown in the figure fig. 109.
IMPORTANT To install a tow hook contact a Fiat Dealership.
109F1B0168C
138
STARTING AND DRIVING

FUSE LOCATION
Fuses are grouped together in the fuse
boxes located in the engine
compartment, under the dashboard
and inside the boot.
ENGINE COMPARTMENT
FUSE BOX
The fuse box is located by the side of
the battery fig. 123.
To access the fuses, proceed as
follows:
fully tighten screw A fig. 124, using
the screwdriver provided;
at the same time slowly rotate the
screw anticlockwise, until resistance is
encountered (do not overtighten);
slowly release the screw;
opening is indicated by the entire
screw head coming out of its housing;
remove cover B, sliding it upwards
on the side guides, as indicated in the
figure.
The number identifying the electrical
component corresponding to each fuse
is shown on the cover.
Once the fuse has been replaced,
proceed as follows:
correctly refit the cover B in the side
guides of the casing;
slide it down completely from the
top;
fully tighten screw A, using the
screwdriver provided;
at the same time slowly rotate the
screw clockwise, until resistance is
encountered (do not overtighten);
slowly release the screw;
closure is indicated by the securing
of the entire screw head in its housing.
122F1B0187C
123F1B0191C
124F1B0190C
150
IN AN EMERGENCY

WARNING
139)If the replaced fuse blows again,
contact a Fiat Dealership.
140)Never replace a fuse with another
with a higher amp rating; DANGER OF
FIRE
141)If a fuse NOT indicated in this or the
previous page is used, contact a Fiat
Dealership.
142)Before replacing a fuse, make sure
that the ignition device is at STOP, that the
key, if mechanical, has been removed and
that all devices are switched off and/or
disconnected.
IMPORTANT
66)Never replace a fuse with metal wires
or anything else.
67)If it is necessary to wash the engine
compartment, take care not to directly hit
the fuse box and the window wiper motor
with the water jet.
CHANGING A WHEEL
JACK
150) 151)
Please note that:
the jack weight is 2.8 kg;
the jack requires no adjustment;
the jack cannot be repaired and in
the event of a fault it must be replaced
by another genuine one;
no tool other than its cranking device
may be fitted on the jack.
Maintenance
prevent any dirt from depositing on
the "worm screw";
keep the "worm screw" lubricated;
never modify the jack.
Conditions for non-use
temperatures below −40°C;
on sandy or muddy ground;
on uneven ground;
on steep roads;
in extreme weather conditions:
thunderstorms, typhoons, hurricanes,
blizzards, storms, etc...
in direct contact with the engine or
for repairs under the car;
on boats.
CHANGING PROCEDURE
143) 144) 145) 146) 147) 148) 149)
Proceed as follows:
stop the vehicle in a position that is
not dangerous for oncoming traffic
where you can change the wheel safely.
The ground should be flat if possible,
and sufficiently firm;
stop the engine, engage the hazard
warning lights and the electric parking
brake;
engage first gear or reverse or, for
versions with automatic transmission,
move the lever to position P (Park);
wear the reflective safety jacket
(compulsory by law in certain countries)
before getting out of the vehicle;
open the boot and position the
reconfigurable load platform in an
inclined position (see "Boot" in the
"Knowing your vehicle" chapter);
take the tool bag provided, which is
secured to the luggage compartment
cover with specific fastenings. This bag
contains fig. 128: jack A; screwdriver B;
adaptor C for refuelling in the event of
an emergency; pin D for centring the
wheel (where provided, to be used in
the spare wheel fitting procedure);
special anti-theft nut E (where provided,
to be used in the wheel stud bolt
fitting/removal procedure); wedge F
wheels and the vehicle;
155
(where provided) for blocking the

equivalent in miles), place the car in a
safe and suitable area, engaging the
electric parking brake. Pick up the kit,
ensure the "ON-OFF" button is in0(off)
position, insert the electrical connector
in the 12V socket of the car. Remove
the valve cap of repaired tyre,
disconnect and pull out the black
inflation tube, connect it to the valve
and lock it with the lever. Check the tyre
pressure shown on the pressure gauge;
if the pressure is lower than 1.8 bar /
26 psi, the TYRE IS TOO DAMAGED
AND CANNOT BE REPAIRED. Remove
and place the kit in the specific
compartment and contact a Fiat
Dealership;
if the pressure is equal to or higher
than 1.8 bar / 26 psi, switch on the
compressor and reach the required
pressure. Disconnect and replace the
kit in the specific compartment. Drive
carefully drive to a Fiat Dealership as
soon as possible.
WARNING
153)Punctures on the sides of the tire may
not be repaired. Do not use the Fix&Go
automatic kit if the tyre was damaged as a
result of being used when underinflated.
154)Wear the protective gloves provided
with the Fix&Go automatic kit.155)Apply the adhesive label where it can
be easily seen by the driver as a reminder
that the tyre has been treated with the
Fix&Go automatic kit. Drive carefully,
particularly on bends. Do not exceed
80 km/h. Avoid sudden acceleration or
braking.
156)If the pressure has fallen below
1.8 bar, do not drive any further: the
Fix&Go automatic kit cannot guarantee
proper hold because the tyre is too
damaged. Contact a Fiat Dealership.
157)You must always indicate that the tyre
was repaired using the Fix&Go automatic
kit. Give the booklet to the technicians who
will be handling the tyre that was treated
using the Fix&Go Automatic kit.
158)Repairs are not possible in the case of
damage to the wheel rim (bad groove
distortion causing air loss). Do not remove
foreign bodies (screws or nails) from the
tyre.
159)Never operate the compressor for
longer than 20 consecutive minutes. Risk
of overheating. The Fix&Go Automatic kit is
not suitable for definitive repairs, so the
repaired tyres may only be used
temporarily.160)As required by current regulations,
the information on chemical substances for
the protection of human health and the
environment and on the safe use of the
sealing fluid are on the cannister label.
Compliance with the indications on the
label is an essential condition to ensure the
safety and the effectiveness of the product.
Remember to carefully read the label
before use; the user of the product is
responsible for any damages caused by
improper use. The sealing fluid has an
expiry date. Replace the bottle if the
sealant has expired.
IMPORTANT
68)In the event of a puncture caused by
foreign bodies, the kit may be used to
repair tyres showing damage on the tread
or shoulder up to max. 4 mm diameter.
IMPORTANT
3)Dispose of the bottle and the sealant
liquid properly. Have them disposed of in
compliance with national and local
regulations.
161

PERIODIC CHECKS
Every1,000km or before long trips
check and, if necessary, top up:
engine coolant level;
brake fluid level;
windscreen washer fluid level;
tyre inflation pressure and condition;
operation of lighting system
(headlights, direction indicators, hazard
warning lights, etc.);
operation of screen washer/wiper
system and positioning/wear of
windscreen/rear window wiper blades.
Every3,000km, check and top up if
required: engine oil level.
DEMANDING USE OF THE
CAR
If the car is used mainly under one of
the following conditions:
law enforcement (or security service),
taxi service;
towing a trailer or caravan;
dusty roads;
short, repeated journeys (less than
7-8 km) at sub-zero outside
temperatures;
engine often idling or driving long
distances at low speeds or long periods
of inactivity;
the following checks must be carried
out more often than indicated in the
Service Schedule:
check front disc brake pad condition
and wear;
check cleanliness of bonnet and
luggage compartment locks,
cleanliness and lubrication of linkage;
visually inspect conditions of: engine,
gearbox, transmission, pipes and hoses
(exhaust/fuel system/brakes) and
rubber elements (gaiters/sleeves/
bushes, etc.);
check battery charge and battery
fluid level (electrolyte);
visually inspect conditions of the
accessory drive belts;
check and, if necessary, change
engine oil and replace oil filter;
check and, if necessary, replace
pollen filter;
check and, if necessary, replace air
cleaner.
180
SERVICING AND MAINTENANCE

BATTERY
RECHARGING
IMPORTANT
IMPORTANT The battery recharging
procedure is given as information only.
To carry out this operation contact a
Fiat Dealership.
IMPORTANT After setting the ignition
device to STOP and having closed the
driver side door, wait at least one
minute before disconnecting the
electrical supply from the battery. When
reconnecting the electrical supply to the
battery, make sure that the ignition
device is in the STOP position and the
driver side door is closed.
IMPORTANT Charging should be slow
at a low ampere rating for
approximately 24 hours. Charging for a
longer time may damage the battery.IMPORTANT The cables of the
electrical system must be correctly
reconnected to the battery, i.e. the
positive cable (+) to the positive
terminal and the negative cable (–) to
the negative terminal. The battery
terminals are marked with the positive
(+) and negative (–) symbols, and are
shown on the battery cover. The battery
terminals must also be corrosion-free
and firmly secured to the terminals. If a
"quick-type" battery charger is used
with the battery fitted on the vehicle,
before connecting it disconnect both
cables of the battery itself. Do not use a
"quick-type" battery charger to provide
the starting voltage.
VERSIONS WITHOUT
START&STOP SYSTEM
To recharge, proceed as follows:
disconnect the terminal from the
negative battery pole;
connect the charger cables to the
battery terminals, observing the polarity;
turn on the charger;
when it is recharged, turn the
charger off before disconnecting it from
the battery;
reconnect the negative battery
terminal.
VERSIONS WITH
START&STOP SYSTEM
To recharge, proceed as follows:
disconnect the connector A
fig. 161 (pressing the button B) from the
sensor C monitoring the battery
conditions, on the negative pole (–) D of
the battery;
161F1B0300C
190
SERVICING AND MAINTENANCE