ECU FIAT 500 2017 2.G Owner's Guide

ONBOARD DIAGNOSTIC SYSTEM — OBD II
Your vehicle is equipped with a sophisticated Onboard
Diagnostic system called OBD II. This system monitors
the performance of the emissions, engine, and auto-
matic transmission control systems. When these sys-
tems are operating properly, your vehicle will provide
excellent performance and fuel economy, as well as
engine emissions well within current government regu-
lations.
If any of these systems require service, the OBD II
system will turn on the Malfunction Indicator Light
(MIL). It will also store diagnostic codes and other
information to assist your service technician in making
repairs. Although your vehicle will usually be drivable
and not need towing, see your authorized dealer for
service as soon as possible.
CAUTION!
•Prolonged driving with the MIL on could cause
further damage to the emission control system. It
could also affect fuel economy and driveability.
(Continued)
CAUTION! (Continued)
The vehicle must be serviced before any emis-
sions tests can be performed.
• If the MIL is flashing while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
Onboard Diagnostic System (OBD II)
Cybersecurity
Your vehicle is required to have an Onboard Diagnostic
system (OBD II) and a connection port to allow access to
information related to the performance of your emis-
sions controls. Authorized service technicians may need
to access this information to assist with the diagnosis
and service of your vehicle and emissions system.
WARNING!
• ONLY an authorized service technician should
connect equipment to the OBD II connection port
in order to diagnose or service your vehicle.
(Continued)
280 MAINTAINING YOUR VEHICLE

WARNING!(Continued)
•If unauthorized equipment is connected to the
OBD II connection port, such as a driver-behavior
tracking device, it may:
• Be possible that vehicle systems, including
safety related systems, could be impaired or a
loss of vehicle control could occur that may
result in an accident involving serious injury or
death.
• Access, or allow others to access, information
stored in your vehicle systems, including per-
sonal information.
For further information, refer to “Cybersecurity” in the
“Understanding Your Instrument Panel” section.
EMISSIONS INSPECTION AND MAINTENANCE
PROGRAMS
In some localities, it may be a legal requirement to pass
an inspection of your vehicle’s emissions control sys-
tem. Failure to pass could prevent vehicle registration. For states that require an Inspection and Main-
tenance (I/M), this check verifies the “Malfunc-
tion Indicator Light (MIL)” is functioning and is
not on when the engine is running, and that the OBD II
system is ready for testing.
Normally, the OBD II system will be ready. The OBD II
system may notbe ready if your vehicle was recently
serviced, recently had a dead battery or a battery
replacement. If the OBD II system should be deter-
mined not ready for the I/M test, your vehicle may fail
the test.
Your vehicle has a simple ignition actuated test, which
you can use prior to going to the test station. To check
if your vehicle’s OBD II system is ready, you must do
the following:
1. Cycle the ignition switch to the ON position, but do not crank or start the engine.
7
MAINTAINING YOUR VEHICLE 281

manufacturer recommends that air conditioning service
be performed by authorized dealer or other service
facilities using recovery and recycling equipment.
NOTE:Use only manufacturer approved A/C system
PAG compressor oil and refrigerants.
A/C Air Filter
WARNING!
Do not remove the cabin air filter while the vehicle
is running, or while the ignition is in the ACC or
ON/RUN mode. With the cabin air filter removed
and the blower operating, the blower can contact
hands and may propel dirt and debris into your
eyes, resulting in personal injury.
The A/C air filter is located in the fresh air inlet on the
lower right of center console. Perform the following
procedure to replace the filter:
1. Remove the Torx screw that secures the passenger side console closeout cover. 2. Pull the console closeout cover rearward to disen-
gage the front retaining tab and remove the cover.
Torx Screw Location7
MAINTAINING YOUR VEHICLE 289

3. Remove the two 5.5 mm screws (1 and 2) that securethe particulate air filter cover to the HVAC housing. 4. Remove the A/C air filter by pulling it straight out of
the housing. Take note of the air filter position
indicators.
Console Closeout PanelAir Filter Cover Screw Locations
290 MAINTAINING YOUR VEHICLE

NOTE:If your vehicle is equipped with a manual
transmission, the brake fluid reservoir supplies fluid to
both the brake system and the clutch release system.
The two systems are separated in the reservoir, and a
leak in one system will not affect the other system. The
manual transmission clutch release system should not
require fluid replacement during the life of the vehicle.
If the brake fluid reservoir is low and the brake system
does not indicate any leaks or other problems, it may be
a result of a leak in the hydraulic clutch release system.
See your local authorized dealer for service.
Use only manufacturer’s recommended brake fluid.
Refer to “Fluids, Lubricants, And Genuine Parts” in
“Maintaining Your Vehicle” for further information.
WARNING!
• Use only manufacturer’s recommended brake
fluid. Refer to “Fluids, Lubricants, And Genuine
Parts” in “Maintaining Your Vehicle” for further
information. Using the wrong type of brake fluid
can severely damage your brake system and/or
impair its performance. The proper type of brake
fluid for your vehicle is also identified on the
(Continued)
WARNING! (Continued)
original factory installed hydraulic master cylin-
der reservoir.
• To avoid contamination from foreign matter or
moisture, use only new brake fluid or fluid that
has been in a tightly closed container. Keep the
master cylinder reservoir cap secured at all times.
Brake fluid in a open container absorbs moisture
from the air resulting in a lower boiling point.
This may cause it to boil unexpectedly during
hard or prolonged braking, resulting in sudden
brake failure. This could result in a collision.
• Overfilling the brake fluid reservoir can result in
spilling brake fluid on hot engine parts, causing
the brake fluid to catch fire. Brake fluid can also
damage painted and vinyl surfaces, care should
be taken to avoid its contact with these surfaces.
• Do not allow petroleum-based fluid to contami-
nate the brake fluid. Brake seal components could
be damaged, causing partial or complete brake
failure. This could result in a collision.
7
MAINTAINING YOUR VEHICLE 301

Adding Engine Coolant (Antifreeze).............297
Adding Fuel ............................. .242
Adding Washer Fluid ....................... .293
Additives, Fuel ........................... .241
AirBag ..................................32 Advance Front Air Bag .....................32
Air Bag Operation .........................33
Driver Knee Air Bag .......................34
Enhanced Accident Response ................276
Event Data Recorder (EDR) .................276
FrontAirBag ............................32
If A Deployment Occurs ....................38
Knee Impact Bolsters .......................34
Maintaining Your Air Bag System ..............42
Transporting Pets .........................59
Air Bag Light .......................... .61, 118
Air Bag Maintenance .........................42
Air Cleaner, Engine (Engine Air Cleaner Filter) ......286
Air Conditioner Maintenance ..................288
Air Conditioning Filter ...................178, 289
Air Conditioning, Operating Tips ...............177
Air Conditioning Refrigerant ..................288
Air Conditioning System ..................177, 288
Air Pressure, Tires ......................... .220Alarm
Disarm The System ........................12
Vehicle Security Alarm .....................12
Alarm (Security Alarm) .......................12
Alterations/Modifications, Vehicle ................6
Antifreeze (Engine Coolant) ................296, 320
Capacities ............................. .320
Disposal .............................. .298
Anti-Lock Brake System (ABS) .................203
Anti-Lock Warning Light .....................133
Appearance Care .......................... .304
Audio Systems (Radio) ...................... .150
Automatic Dimming Mirror ....................71
Automatic Oil Change Indicator ................324
Automatic Temperature Control (ATC) ...........177
Automatic Transaxle ..........................9
Automatic Transmission ...............189, 302, 303
Adding

Fluid .......................... .303
Fluid And Filter Changes ...................303
Fluid Change .......................... .303
Fluid Level Check ....................... .303
Fluid Type ............................ .322
Gear Ranges ........................... .192
Special Additives ........................ .303
336 INDEX

CleaningWheels ............................... .305
Windshield Wiper Blades ...................291
Climate Control ........................... .167
Manual ............................... .167
Clutch ................................. .300
Clutch Fluid ............................. .300
Compact Spare Tire ........................ .224
Connector UCI ................................. .151
Universal Consumer Interface (UCI) ...........151
Contract, Service .......................... .332
Convertible Top Maintenance ..................309
Coolant (Antifreeze) .....................320, 321
Cooling System ........................... .295
Adding Coolant (Antifreeze) .................297
Coolant Capacity ........................ .321
Coolant Level ....................... .296, 299
Disposal Of Used Coolant ..................298
Drain, Flush, And Refill ....................296
Inspection ............................. .299
Points To Remember ...................298, 299
Pressure Cap ........................... .298
Selection Of Coolant (Antifreeze) .............296
Corrosion Protection ....................... .304Cruise Light
.......................... .136, 137
Cupholders .............................. .103
Customer Assistance ....................... .330
Customer Programmable Features ...............152
Daytime Running Lights ......................83
Dealer Service ............................ .282
Defroster, Windshield ........................61
Diagnostic System, Onboard ...................280
Dipsticks Automatic Transmission ....................303
Disarming, Security System ....................12
Disposal Antifreeze (Engine Coolant) .................298
Door

Ajar ............................... .124
Door Ajar Light ........................... .124
Door Locks ................................17
Door Locks, Automatic .......................19
Downshifting ............................ .189
Driving Through Flowing, Rising, Or Shallow Standing
Water ................................ .198
Electrical Power Outlets ..................... .100
Electric Remote Mirrors .......................72
338 INDEX

Schedule, Maintenance...................... .324
Seat Belt Energy Management Feature .................30
Lap/Shoulder Belt Operation .................26
Lap/Shoulder Belts ........................24
Lap/Shoulder Belt Untwisting ................28
Pregnant Women .........................29
Seat Belt Extender .........................29
Seat Belt Pretensioner ......................30
Seat Belt Reminder ........................23
Seat Belt Maintenance ...................... .308
Seat Belt Reminder ..........................23
Seat Belts ............................. .23, 61
Child Restraint ...........................43
Extender ...............................29
Front Seat ........................ .23, 24, 26
Inspection ..............................61
Operating Instructions ......................26
Pregnant Women .........................29
Pretensioners ............................30
Rear Seat ...............................24
Reminder ..............................118
Untwisting Procedure ......................28
Seats ....................................74
Adjustment .............................74 Heated
.................................78
Security Alarm Disarm The System ........................12
Security Alarm ...........................12
Sentry Key (Immobilizer) ......................11
Service Assistance ......................... .330
Service Contract .......................... .332
Service Manuals .......................... .333
Shift Lever Override ....................... .272
Shift Speeds, Manual Transmission ..............188
Shoulder Belts .............................24
Signals, Turn ........................ .63, 84, 135
Snow Chains (Tire Chains) ....................229
Snow Tires .............................. .223
Spare Tire ..................... .223, 224, 225, 226
Spark Plugs ............................. .321
Speed Control Accel/Decel .............................93
Speed Control (Cruise Control) ..................90
Sport Mode .............................. .202
Starting ................................ .184
Automatic

Transmission ....................184
Cold Weather .......................... .185
Engine Fails To Start ..................... .186
Manual Transmission ..................... .184
344 INDEX

Trailer Towing............................ .243
Transaxle Automatic ...............................9
Transmission ............................. .302
Automatic ......................... .189, 302
Fluid ................................ .302
Manual ............................... .186
Transporting Pets ...........................59
Tread Wear Indicators ...................... .226
Turn Signals ........................... .84, 135
UCI Connector ........................... .151
Uniform Tire Quality Grades ..................231
Universal Consumer Interface (UCI) Connector .....151
Unleaded Gasoline ........................ .239
Untwisting Procedure, Seat Belt .................28
Vehicle Identification Number (VIN) ...............6
Vehicle Loading ........................... .216
Vehicle Modifications/Alterations .................6
Vehicle Security Alarm Disarming ................12
Vehicle Storage ........................ .178, 315Warnings And Cautions
.......................5
Warranty Information ......................4,332
Washer Adding Fluid .......................... .293
Washers, Windshield ..................... .87, 88
Washing Vehicle .......................... .304
Water Driving Through ........................ .198
Wheel And Wheel Trim ..................... .305
Wheel And Wheel Trim Care ..................305
Wind Buffeting ......................... .20, 99
Window Fogging .......................... .178
Windows .................................19
Power .................................19
Windshield Defroster .........................61
Windshield Washers ...................... .87, 88
Windshield Wiper Blades .....................291
Windshield Wipers ..........................87
Wiper Blade Replacement .....................291
346 INDEX