1997 CADILLAC DEVILLE check engine

Downloaded from www.Manualslib.com manuals search engine If the Light Is Flashing
The following may prevent more serious damage to
your vehicle:
0 Reducing vehicle speed.
0 Avoiding hard accelerations.
0 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.
If the Light Is On Steady
You may be able to correct the emission system
malfunction by considering the following:
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.
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Downloaded from www.Manualslib.com manuals search engine Oil Pressure Light
8
This light tells you if there
could be a problem with
your engine oil pressure.
The light goes on when you turn your key to RUN or
START.
It goes off once you start your engine. That’s a
check to be sure the light works. If it doesn’t come on,
be sure
to have it fixed so it will be there to warn you if
something goes wrong. When the light
comes on and stays on, it
means that oil isn’t
flowing through your engine properly.
You could be low on
oil and you might
have some other system problem.
CAI JTTON:
Don’t keep driving if the oil ssure 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.
hOTICE:
Damage to your engine from neglected oil
problems can be costly and is not covered by
your warranty.
2-82

Downloaded from www.Manualslib.com manuals search engine Driver Information Center Messages
These messages will appear if there is a problem sensed
in one of your vehicle’s systems. Vehicles that
are first
sold in Canada will have a number after each message.
This number helps to identify the message which is only
displayed
in English.
A/C OFF FOR ENGINE PROTECTION - 16: This
message displays when the engine coolant becomes
hotter than the normal operating temperature.
To avoid
added strain on a hot engine, the air conditioning
compressor is automatically turned off
so that air
conditioned
air is not delivered. If the coolant
temperature returns to normal, you must select AC to
return to a normal A/C compressor operation.
If this
message continues to appear, have the system repaired
as soon as possible to avoid compressor damage.
APPLY BRAKE TO SHIFT - 46: This message will
appear if your vehicle is in PARK
(P) for about 15
seconds and the brake
is not pressed in. To remove this
message from the DIC display, hold the
OFF and the
blue (cooler) buttons on the digital cluster climate control panel for about five seconds. On the analog
cluster climate control panel, press the
OFF button (next
to the
MODE button) and the down arrow on the PASS
TEMP button for about five seconds. Hold the same two
buttons to display the message again.
BATTERY NO CHARGE - 07: This message will
appear if the battery
is not being charged. Have the
electrical system checked by your Cadillac dealership at
your earliest convenience.
BATTERY VOLTS HIGH - 08: This message shows
that the electrical charging system is overcharging (more
than
16 volts). To avoid being stranded, have the
electrical system checked by your Cadillac dealership.
You can reduce the charging overload by using the
accessories. Turn on the lamps and radio, set the climate
control on
AUTO and the fan speed on HI, and turn the
rear window defogger on. You can monitor battery
voltage on the DIC by pressing the INFORMATION
(INFO) button. The normal range is 11.5 to 15.5 volts
when the engine is running.
BATTERY VOLTS LOW - 06: This message will
appear when the electrical system is charging less than 10 volts or if the battery has been drained.
If this
message appears immediately after starting, it is possible
that the generator can still recharge the battery. The
battery should recharge after driving a few miles and the message should
go out. If this message appears while
driving or after starting your vehicle and stays on, have
it checked immediately to determine the cause
of this
problem.
To help the generator recharge the battery
quickly, you can reduce the load on the electrical system
by turning
off the accessories. You can monitor battery

Downloaded from www.Manualslib.com manuals search engine voltage on the DIC by pressing the INFORMATION
(INFO) button. The normal range is 11.5 to 15.5 volts.
BRAKE VACUUM PROBLEM - 10s: The circuit in
the brake booster vacuum has shorted
or is loose when
this message appears. Your vehicle may lose power
brakes but you will still have the use of manual brakes.
The power brakes will not be affected if the problem is
caused by a failed sensor. Have your vehicle serviced
immediately at your Cadillac dealership.
CHANGE ENGINE OIL - 82: This means that the life
of the engine oil has expired and
it should be changed
within 200 miles. See “Engine Oil” and “Filter
Recommendations”
in the Maintenance Schedule booklet.
After an oil change, the Oil Life Indicator must be reset. See “Oil Life Indicator”
in the Index on how to reset it.
CHANGE TRANS FLUID - 47: This message will
appear when it is time to replace the transaxle fluid. See
the Maintenance Schedule booklet for the proper fluid
and change intervals.
CJ3ECK BRAKE FLUID LEVEL - 37: This message
will display if the ignition is in the
RUN position to
inform the driver that the brake fluid level is low. Check
the brake reservoir level and add fluid as needed. Have
the brake system serviced by a Cadillac technician as soon
as possible. If the brake warning light is on, follow
the directions in that part.
CHECK COOLANT LEVEL - 02: This message will
appear when there is a low level
of engine coolant. Have
the cooling system serviced by a Cadillac technician as soon as possible.
CHECK FUEL GAGE - 39: This message will appear
when the fuel supply
is less than four gallons (15.2 L)
and the display is turned off (digital clusters only).
A single chime will also sound when this message
is displayed.
CHECK OIL LEVEL - 36: For correct operation of
the low oil sensing system, your vehicle should be on a
level surface.
A false CHECK OIL LEVEL message
may appear if the vehicle is parked
on grades. The oil
level sensing system does not check for actual oil level
if the engine has been off for a short period of time, and
the oil level
is never sensed while the engine is running.
If the CHECK OIL LEVEL message appears, and your
vehicle has been parked on level ground with the engine
off for at least 30 minutes, the oil level should be
checked by observing the oil dipstick. Prior to checking
the oil level, be sure the engine has been off for five
minutes and your vehicle is on a level surface. Then
check the dipstick and add oil if necessary. See “Engine
Oil” in the Index.

Downloaded from www.Manualslib.com manuals search engine CHECK WASHER FLUID - 25: This message will
appear for several seconds indicating that you need
washer solvent.
CRUISE ENGAGED - 43: This message will appear for
a few seconds when you select a speed at which to cruise.
DOOR OPEN - 141: The passenger’s door or rear
doors are open
or ajar when this message appears. The
vehicle’s engine must be running and the transaxle not
be in PARK
(P) for this message to display. A chime
will also sound when the vehicle’s speed is greater than
5 mph (8.1 km/h).
DRIVER DOOR OPEN - 140: The driver’s door is
open or ajar when this message appears. The vehicle’s
engine must be running and the transaxle not be in
PARK (P) for this message to display. A chime will also
sound when the vehicle’s speed is greater than
5 mph
(8.1
km/h).
ENGINE COOLANT HOT-IDLE ENGINE - 44:
This message will appear when the engine coolant
temperature is over 248
“F (1 26 “C). To avoid added strain
on a hot engine, turn off the climate control system. Stop
and allow your vehicle to idle until it cools down or the
message is removed.
If it does not cool down, turn off the
engine and have it serviced before driving it again. Severe
engine damage can result from an overheated engine. See “Engine Overheating” in the Index,
ENGINE MISFIRE -- EASE OFF GAS
PEDAL
- 114: An engine misfire has occurred. You’ll
need to
ease off the gas pedal.
FUEL LEVEL LOW - 11: This message serves as a
warning that the fuel level in the tank
is critically low.
Stop for fuel soon.
ICE POSSIBLE - 13: This message appears when
the outside air temperature is cold enough to create icy
road conditions.
HEADLAMPS SUGGESTED - 23: If it’s dark enough
outside and the twilight sentinel control is
off, a
HEADLAMPS SUGGESTED message will display on the
DIC. This message infonns the driver that turning on the
exterior lamps is recommended even thought the
DRL are
still illuminated. (It has become dark enough outside to
require the headlamps and/or other exterior lamps.)
MONITORED SYSTEMS OK - 1: This message only
appears in the “recall” mode by pressing the RESET
button. It lets you know that no other messages are
stored or currently active.
PASS KEY NOT PROGRAMMED - 31: This
warning message displays when the PASS-Key pellet
information has not been programmed into your vehicle.
See your Cadillac dealership for service.

Downloaded from www.Manualslib.com manuals search engine PCM FAULT - 110: The circuit in the Powertrain
Control Module (PCM) has shorted or is loose when this
message appears. Have your Cadillac serviced by your
dealership at once.
REDUCED ENGINE POWER - 41: This message
informs the driver, that due to wheel slippage, your vehicle
is reducing engine power to compensate for the loss of
traction. Accelerating too fast, causing the tires to spin,
is
an example of when this message would display.
REMOVE KEY - 70: This message will appear when
the Personalized Automotive Security System
(PASS-Key 11) is unable to read the pellet on the
ignition key or an improper key pellet has been inserted.
Wait for the DIC to display STARTING DISABLED
DUE TO THEFT SYSTEM REMOVE IGNITION
KEY. The instrument panel cluster will then run a timer
and change the messages to WAIT
3 MINUTES, WAIT
2 MINUTES, WAIT 1 MINUTE and then START CAR.
When the REMOVE KEY message is displayed, remove
the ignition key. Check the ignition key for damage. If it
is damaged, it may need to be replaced. If you
see no
damage, clean the pellet contacts with a soft cloth or
napkin before inserting the key back into the ignition. Have your vehicle serviced if the message still appears.
SERVICE A/C SYSTEM A/C COMPRESSOR
OFF - 14: This message appears when the electronic
sensors that control the air conditioning and heating systems
are no longer working. Have the climate control
system serviced if you notice a drop in heating and air
conditioning efficiency.
SERVICE AIR BAG - 83: There is a problem with the
Supplemental Inflatable Restraint (air bag) system when
this message appears. Let only a qualified technician
work on your vehicle.
See your Cadillac dealership for
service at once.
SERVICE BRAKE FLUID SWITCH - 37: A defect
in the brake fluid detection circuit causes this message
to display if the ignition is in the
RUN position. Have
the brake system serviced by a Cadillac technician as soon
as possible. If the brake warning light is on, refer
to the directions listed in that part.
SERVICE CHARGING SYSTEM - 102: This
message will display when a problem with the charging system has been detected. Have your vehicle serviced at
your Cadillac dealership.
SERVICE ELECTRICAL SYSTEM - 106: This
message will display if an electrical problem has
occurred within the PCM. Have your vehicle serviced
by your Cadillac dealership.
SERVICE EMISSIONS SYSTEM - 104: A problem in
the emissions system has occurred when
this message
appears. Have your Cadillac dealership service your vehicle.
2-92

Downloaded from www.Manualslib.com manuals search engine SERVICE ENGINE COOLING SYSTEM - 103: A
problem within the engine cooling system has been
detected when this message displays. See your Cadillac
dealership for service.
SERVICE FUEL SYSTEM - 101: The PCM
has detected a problem within the fuel system when
this message appears.
See your Cadillac dealership
for service.
SERVICE IDLE CONTROL SYSTEM - 107: A
problem with the idle control has occurred when this
message displays. Bring your vehicle to your Cadillac
dealership for service.
SERVICE IGNITION SYSTEM - 105: This message
displays when a failure in the ignition system has been
detected. Have your vehicle serviced by your
Cadillac dealership.
SERVICE RIDE CONTROL - 84: This message is
displayed to indicate that the suspension system is not
operating properly. To correct this problem, have your
vehicle serviced at your Cadillac dealership.
SERVICE STEERING SYSTEM - 127: This message
is displayed when a problem has been detected in the
MAGNASTEER variable effort steering system. Service is required.
A single chime will also sound when
this message is displayed.
SERVICE TRANSMISSION - 100: If a problem is
detected with the transaxle, this message will appear.
Have your vehicle checked by your Cadillac dealership.
SPEED SENSOR FAULT - 109: A circuit problem
with the vehicle speed sensor will trigger this message
to appear. Have your Cadillac dealership service
your vehicle.
STABILITY ENGAGED - 55: If you have the DeVille
Concours, you may see the STABILITY ENGAGED
message on the Driver Information Center. It means that
an advanced, computer-controlled system has come on
to help your Cadillac continue to go in the direction in
which you’re steering. This stability enhancement
system activates when the computer senses that your
Cadillac is just starting to spin, as it might if you hit a
patch
of ice or other slippery spot on the road. When the
system is on, you may hear a noise or feel a vibration in
the brake pedal. This is normal.
When the STABILITY ENGAGED message is on, you should continue to steer in the direction you want to go.
.
The system is designed to help you in bad weather or
other difficult driving situations by making the most of
whatever road conditions will permit. If the STABILITY
ENGAGED message comes on, you’ll know that something has caused your Cadillac to start to spin,
so you should consider slowing down.

Downloaded from www.Manualslib.com manuals search engine STABILITY REDUCED - 54: If you ever see the
STABILITY REDUCED message, it means there may
be a problem with your stability enhancement system.
If
you see this message, try to reset the system (stop; turn
off the engine; then start the engine again). If the
STABILITY REDUCED message still comes on,
however, it means there is a problem,
so you should see
your Cadillac dealer for service.
STARTING DISABLED DUE TO THEFT SYSTEM
REMOVE IGNITION KEY
- 33: This message will
appear when the Personalized Automotive Security
System (PASS-Key
11) senses that an improper ignition
key is being used to try to start the vehicle. Check the
ignition key for damage. If it is damaged, it may need to
be replaced. If you see no damage, clean the pellet
contacts with a soft cloth or napkin. Remove the ignition
key and wait for the DIC to display WAIT
3 MINUTES.
The instrument panel cluster will then run a timer and
change the messages to WAIT
2 MINUTES, WAIT
1 MINUTE and then START CAR. When the START
CAR message is displayed, try again to start the engine.
STOP ENGINE ENGINE OVERHEATED - 42: This
message will appear when the engine has overheated.
Stop and turn the engine
off immediately to avoid severe
engine damage. See “Engine Overheating” in the Index.
STOP ENGINE LOW OIL PRESSURE - 35: If this
message appears while the engine is running, stop the
engine and do not operate
it until the cause of low oil
pressure is corrected. Severe damage to the engine can
result. A multiple chime will also sound when this message is displayed.
THEFT SYSTEM PROBLEMCAR MAY NOT RESTART
- 34: This message means there is a problem
in the Personalized Automotive Security System
(PASS-Key
11). A fault has been detected in the system
which means that the PASS-Key
I1 system is disabled
and is not protecting the vehicle. The vehicle usually
restarts, however, you may want to take your vehicle to
a proper service center before turning
off the engine.
TOP SPEED FUEL CUT-OFF - 111: This message
will appear when the PCM senses that the maximum
speed for your Cadillac has been reached. The speed
of your vehicle will decrease several mph as the fuel
supply
is cutoff. This allows your vehicle to stay in a
stable operating range.