Onboard diagnostic system — obd ii – FIAT Freemont User Manual
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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.
• Prolonged driving with the MIL on
could cause further damage to the emis-
sion control system. It could also affect
fuel economy and drivability.The vehicle must be
serviced before any emissions tests can be per-
formed.
• If the MIL is flashing while the engine is running,
severe catalytic converter damage and power loss
will soon occur. Immediate service is required.
LOOSE FUEL FILLER CAP MESSAGE
If the vehicle diagnostic system determines that the
fuel filler cap is loose, improperly installed, or damaged,
the word “gASCAP” will display in the odometer. If this
occurs, tighten the fuel filler cap until a “clicking” sound
is heard and press the TRIP ODOMETER button to
turn off the message. If the problem persists, the
message will appear the next time the vehicle is
started.
A loose, improperly installed, or damaged fuel filler cap
may also turn on the MIL.
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KNOWING
YOUR
VEHICLE
SAFETY
STARTING
AND
DRIVING
WARNING
LIGHTS
AND
MESSAGES
IN AN
EMERGENCY
SERVICING
AND
CARE
TECHNICAL
SPECIFICATIONS
CONTENTS