1997 PONTIAC PONTIAC check engine

Trunk
I NOTICE:
When replacing the battery, use care not to
touch any of the circuitry. Static from your
body transferred to these surfaces may damage
the transmitter.
Resynchronizing Your Remote Keyless
Entry Transmitter
Your Keyless Entry System uses a continually changing
code for increased security. Normally, the receiver in
your vehicle will keep track
of this changing code.
0 Loss of synchronization will occur if the transmitter
is activated more than 256 times while out of range
of the vehicle.
Loss of synchronization will occur after battery
replacement
if the transmitter is immediately
activated more than
16 times while Out of range
of the vehicle.
If your key chain transmitter has stopped working, you
may need to resynchronize the transmitter to the vehicle
receiver.
To do this, press the LOCK and UNLOCK
buttons
together and hold for at least seven seconds, or
until the horn sounds when equipped with Content
Theft-Deterrent. Check transmitter.
It can be dangerous to drive with the trunk open
because carbon monoxide
(CO) gas can come into
your vehicle. You can’t see or smell CO.
It can
cause unconsciousness
and even death.
If you must drive with the trunk open or if
electrical wiring
or other cable connections must
pass through the seal between the body and
the trunk:
Make sure all windows are shut.
Turn the fan on your heating or cooling
system to its highest speed with the setting
on
VENT. That will force outside air into
your vehicle. See “Comfort Controls” in
the Index.
instrument panel, open them
all the way.
If you have air outlets on or under the
See “Engine Exhaust”
in the Index.
2-11
ProCarManuals.com

NOTICE:
Holding your key in START for longer than
15 seconds at a time will cause your battery to be
drained much sooner. And the excessive heat can
damage your starter motor.
2. If it doesn’t start right away, hold your key in
START for about three to five seconds at a time until
your engine starts. Wait about
15 seconds between
each
try to help avoid draining your battery.
3. If your engine still won’t start (or starts but then
stops), it could be flooded with too much gasoline.
Try pushing
your accelerator pedal all the way to the
floor and holding it there as you hold the key in
START for about three seconds.
If the vehicle starts
briefly but then stops again, do the same thing, but
this time keep the pedal down for five or six seconds.
This clears the extra gasoline from the engine.
After waiting about
15 seconds, repeat the normal
starting procedure.
NOTICE:
Your engine is designed to work with the
electronics
in your vehicle. If you add electrical
parts or accessories, you could change the way
the engine operates. Before adding electrical
equipment, check with your dealer.
If you don’t,
your engine might not perform properly.
If you ever have to have your vehicle towed, see
the part of this manual that tells how to
do it
without damaging your vehicle. See “Towing
Your Vehicle” in the Index.
2-17
ProCarManuals.com

Warning Lights, Gages and Indicators
This part describes the warning lights and gages that
may be on your vehicle. The pictures will help
you
locate them.
Warning lights and gages can signal that something is
wrong before
it becomes serious enough to cause an
expensive repair or replacement. Paying attention to
your warning lights and gages could also save
you or
others from injury.
Warning lights come on when there may be or is a
problem with one of your vehicle’s functions. As you
will see in the details on the next few pages, some
warning lights come on briefly when
you start the
engine
just to let you know they’re working. If you are
familiar with this section,
you should not be alarmed
when this happens.
Gages can indicate when there may
be or is a problem
with one of your vehicle’s functions. Often gages and
warning lights work together to let
you know when
there’s a problem with your vehicle.
When one of the warning lights comes on and stays on
when you are driving, or when one of the gages shows
there may be
a problem, check the section that tells you what
to do about it. Please follow this
manual’s advice.
Waiting
to do repairs can be costly -- and even
dangerous.
So please get to know your warning lights
and gages. They’re a big help.
Your vehicle may also have a driver information system
that works along with the warning lights and gages. See
“Driver Information System” in the Index.
Safety Belt Reminder Light
When the key is turned to RUN or START, a chime will
come on for about eight seconds to remind people
to
fasten their safety belts, unless the driver’s safety belt is
already buckled.
The safety belt light will
also come on and stav
on .I
for about 20 seconds, then
it will flash for about
55 seconds. If the driver’s
belt
is already buckled,
neither the chime nor
the
light will come on.
2-64
ProCarManuals.com

Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel, which shows SRS AIR BAG. The system checks
the air bag’s electrical system for malfunctions. The
light tells you if there is an electrical problem. The
system check includes the air bag sensors, the air bag
mo’dules, the wiring and the crash sensing and
diagnostic module. For more information on the air bag
system, see “Air Bag”
in the Index.
SRS AIR BAG
This light will come on
when you start your engine,
and it will flash for a few
seconds.
Then the light
should go out. This means
the system is ready.
If the air bag readiness light stays on after you start the
engine
or comes on when you are driving, your air bag
system may not work properly. Have your vehicle
serviced right away.
The air bag readiness light should flash for a few
seconds when you
turn the ignition key to RUN. If the
light doesn’t come on then, have it fixed so it will be
ready to warn you if there
is a problem.
ProCarManuals.com

Check Tire Pressure Light
CHECK
TIRE
PRESS
With the check tire pressure
system, after you’ve driven
10 to 20 miles (1 5 to 30 km)
the CHECK TIRE PRESS
light will come on if the
pressure in one tire becomes
at least
10 psi (69 kPa)
higher or lower than the
other three tires.
When
the CHECK TIRE PRESS light comes on, you
should stop
as soon as you can and check all your tires
for damage.
(If a tire is flat, see “If a Tire Goes Flat’’
in the Index.) Also
check the tire pressure in all four
tires
as soon as you can. See ‘‘Inflation - Tire Pressure
in the Index.
The light will stay on until you turn off the ignition or
press the
CALIBRATE TIP9 PRESS button. See
“Check Tire Pressure Syst?
.” in the Index.
If the anti-lock
brake system warning light comes on
with the CHECK
TIRE PRESS light, the check tire
pressure system isn’t working. See your Pontiac dealer
for service.
(Also, see “Anti-Lock Brake System
Warning Light in the Index.)
Mal€unctisn Indicator Lamp
(Service Engine Soon Light)
SERVICE
ENIGINIE SOON
Your Pontiac is equipped
with a computer which
monitors operation
of the
fuel, ignition and emission
control systems.
This system is called
OBD I1 (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 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.
2-70
ProCarManuals.com

NOTICE:
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.
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:
0 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.
If the Light Is Flashing
The following may prevent more serious damage to
your vehicle:
Reducing vehicle speed.
Avoiding hard accelerations.
Avoiding steep uphill grades.
If you are towing a trailer, reduce the amount of
cargo being hauled as
soon as it is possible.
If the light stops flashing and remains on steady, see “If
the Light
Is On Steady” following.
If the light continues to flash, when it is safe to do
so,
stop the vehicle. Find a safe place to park your vehicle.
Turn the key off, wait at least 10 seconds and restart the
engine.
If the light remains on steady, see “If the Light
Is On Steady” following. If the light is still flashing,
follow the previous steps, and drive the vehicle to your
dealer or qualified service center for service.
2-71
ProCarManuals.com

If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
Did
you recently put fuel into your vehicle?
If
so, reinstall the fuel cap, making sure to fully install
the cap. The diagnostic system can determine if the fuel
cap has been left off or improperly installed.
A loose or
missing fuel cap will allow fuel to evaporate into the
atmosphere. A few driving trips with the cap properly
installed should turn the light off.
Did
you just drive through a deep puddle of water?
If
so, your electrical system may be wet. The condition
will usually be corrected when the electrical system
dries out.
A few driving trips should turn the light off.
Are you low on fuel?
As your engine starts to run out of fuel, your engine may
not run as efficiently as designed since small amounts of
air are sucked into the fuel line causing a misfire. The
system can detect this. Adding fuel should correct this
condition. Make sure to install the fuel cap properly. It
will take a few driving trips to turn the light off. Have you recently changed brands
of fuel?
If
so, be sure to fuel your vehicle with quality fuel (see
“Fuel” in the Index). Poor fuel quality will cause your
engine not
to run as efficiently as designed. You may
notice this as stalling after start-up, stalling when
you put the vehicle into gear, misfiring, hesitation
on acceleration or stumbling
on acceleration. (These
conditions
may go away once the engine is warmed up.)
This will be detected by the system and cause the light
to turn on.
If you experience one or more
of these conditions,
change the fuel brand you use.
It will require at least
one full tank of the proper fuel to turn the light
off.
If none of the above steps have made the light turn off,
have your dealer or qualified service center check the
vehicle. Your dealer has the proper
test equipment and
diagnostic tools to fix any mechanical or electrical
problems that may have developed.
2-72
ProCarManuals.com

Oil Warning Light
If you have a problem with
your oil pressure, this light
may stay on after you start
your engine, or come on
when you are driving.
This indicates that oil is not going through your engine
quickly enough to keep it lubricated. The engine could
be low on oil or could have some other
oil problem.
Have it fixed right away.
The
oil light could also come on in two other situations:
0 When the ignition is on but the engine is not running,
the light will come on as a test to show you it is
working, but the light will
go out when you turn the
ignition to
START. If it doesn’t come on with the
ignition
on, you may have a problem with the fuse or
bulb. Have it fixed right away.
If you make a hard stop, the light may come on for a
moment.
This is normal.
Don’t keep driving if the oil pressure is low. If
you do, your engine can become so hot that it
catches fire. You or others could be burned.
Check your oil as soon
as possible and have your
vehicle serviced.
NOTICE:
Damage to your engine from neglected oil
problems can be costly and
is not covered by
your warranty.
2-73
ProCarManuals.com