Your Cadillac is equipped
with
a
computer which
monitors operation
of
the
fuel, ignition and emission
SERVICE
ENGINE
SOON
This system is called
OBD
11
(On-Board
Diagnostics-Second Generation) and is intended
to assure that emissions
are
at acceptable levels for
the life of the vehicle, helping to produce a cleaner
environment. (In Canada,
OBD
I1
is replaced by
Enhanced Diagnostics.) The
SERVICE
ENGINE
SOON
light comes on and a chime will sound to indicate that
there is a problem and service is required. Malfunctions
often will be indicated
by
the system before
any
problem
is
apparent.
This
may prevent more
serious
damage to your vehicle. This system
is
also designed to
assist your service technician in correctly diagnosing
any
malfunction.
I
NOTICE:
I
I
If you keep driving your vehicle with this light
on,
after a while, your emission controls may
not
work as well, your fuel economy may not
be
as
good
and
your engine may
not
run
as
smoothly.
This
could lead to costly repairs that may not
be
covered by your warranty.
1
This
light should come on, as
a
check to show you
it
is
working, when the ignition is
on
and the engine is not
running.
If
the light doesn’t come on, have
it
repaired.
This light will also come on during a malfunction in one
of
two ways:
*
Light Flashing
--
A
misfire condition has been
detected.
A
misfire increases vehicle emissions and
may damage the emission control system on your
vehicle. Dealer
or
qualified service center diagnosis
and service
is
required.
Light
On
Steady
--
An emission control system
malfunction has been detected on your vehicle.
Dealer
or
qualified service center diagnosis and
service may be required.
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