1998 CADILLAC SEVILLE sensor

Downloaded from www.Manualslib.com manuals search engine BATTERY VOLTAGE HIGH - 8: 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 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
INFiO button. The normal range is 11.5 to 15.5 volts
when the engine is running.
BATTERY VOLTAGE LOW - 6: This message will
appear when the electrical system is charging less than
9 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 while driving but may take a few hours
to do
so. Consider using an auxiliary charger (be sure to
follow the manufacturer’s instructions) to boost the
battery after returning home or to a final destination. 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 voltage on the DIC
by pressing the INFO button. The normal range is 11.5
to 15.5 volts.
CHANGE BRAKE PADS - 125: This message is used
to notify you that the brake pads may have worn down.
A sensor is connected to the brake pads and is triggered
when they wear to a certain point. Have the front and
rear brakes serviced by your dealer as soon as possible.
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.
CHECK BRAKE FLUID - 37: This message will
display if the ignition is in
ON to inform the driver that
the brake fluid level is low. Have the brake system
serviced by a technician as soon as possible. See “Brake
System Warning Light” in the Index.
CHECK COOLANT LEVEL - 2: This message will
appear when there is a low level of engine coolant. Have
the cooling system serviced by a technician as soon
as possible.
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.
2-83

Downloaded from www.Manualslib.com manuals search engine RIGHT REAR DOOR A JAR - 143: The right rear
door is open or ajar when this message appears. The key
must be in the
ON position for this message to display.
A chime will also sound when the vehicle’s speed is
greater than
3 mph (4.8 km/h).
SERVICE “AC” SYSTEM - 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 dealership for service
at once.
SERVICE CHARGING SYS - 102: This message will
display when a problem with the charging system has been
detected. Have your vehicle serviced at your dealership.
SERVICE ELECTRICAL SYS - 106: This message
will display
if an electrical problem has occurred within
the PCM or the ignition switch. Have your vehicle serviced by your dealership.
SERVICE FUEL SYSTEM - 101: The PCM has
detected a problem within the fuel system when this
message appears. See your dealership for service.
SERVICE IDLE CONTROL - 107: A problem with
the idle control has occurred when
this message displays.
Take your vehicle to your dealership for service.
SERVICE STABILITY SYS - 54 : If you ever see the
SERVICE STABILITY
SYS 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 SERVICE STABILITY
SYS message still comes on,
it means there is a problem. You should see your dealer
for service. Reduce your speed and drive accordingly.
A single chime will also sound when this message
is displayed.
SERVICE STEERING SYS - 127: This message is
displayed when a problem has been detected in the
Magnasteer
TM variable effort steering system. Service
is required.
SERVICE SUSPENSION SYS - 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 dealership.
2-86

Downloaded from www.Manualslib.com manuals search engine Passenger's Side Temperature Knob
The right front passenger can control the temperature of
air for that area. (The passenger and driver knobs adjust
60 " F ( 16" C) to 90" F (32 " C) independent of each
other. It is suggested, however, that the passenger's
setting stay no more than four degrees warmer or cooler
in temperature from the driver's setting.) To turn the
system on, press the passenger's side TEMP button.
Turn the passenger's side TEMP knob to the right to
increase the temperature and to the left to decrease the
temperature. Press the passenger's side TEMP knob
again to turn off the passenger's side system. If the
passenger's side is turned
off, the driver's side will
control the temperature of the entire vehicle.
Automatic Operation
When the system is set for automatic operation, sensors
will control the air delivery mode. Air will come from
the floor, the instrument panel or windshield outlets. The
fan speed will vary as the system maintains the selected
temperature setting.
Be careful not to put anything over the electronic solar sensors located near the ends
of the instrument panel
near the windshield. These sensors are used by the
automatic system to regulate temperature. To
find your comfort zone, start with the
75°F (24°C)
setting and allow about 30 minutes for the system to
regulate. Turn the TEMP knob to adjust the temperature
if necessary. If
you choose 60°F (16"C), the system
will remain at that maximum cooling setting and will
not regulate fan speed. If you choose
90°F (32"C), the
system will remain at that maximum heating setting
and will not regulate fan speed. Choosing either
maximum setting will not cause the system to heat
or cool any faster.
With the automatic setting, the air conditioning
compressor cycles when needed to cool the air. In cold
weather, when the system senses the need for heat, the
airflow will be directed out the floor outlets.
As the
interior temperature approaches a desired setting, the
blower speed will decrease.
To maintain interior
comfort, the airflow may move
to the instrument panel
air outlets and floor outlets (bi-level mode). On bright
sunny days
in cold weather, the aifflow may come out
of the air conditioning outlets
(AX mode) to maintain
comfort and prevent stuffiness.
3-3

Downloaded from www.Manualslib.com manuals search engine If your vehicle is sitting out on a hot day and you have it
set on
AUTO, the air will first flow out the floor outlets
for a few seconds. This is normal. This is to remove hot
air from the air outlets.
As the air is cooled, the airflow
will move through the air conditioning outlets.
To avoid blowing cold air in cold weather, the system
will start at reduced fan speeds until warm air is
available. The length of reduction depends on the
outside air temperature, engine coolant temperature
or the time since the engine was last started.
As the
coolant warms up, the blower fan speed will gradually
increase and air will flow from the heater outlets, with
some airflow to the windshield to prevent fogging under
most normal conditions. If you select defrost mode or a
manual fan speed, this function will be skipped.
If you leave your vehicle, the system will remember
the control setting the next time you start your engine,
except for recirculation and defrost. Each ignition
cycle cancels recirculation. Defrost will change to
automatic operation when the ignition is shut
off and
then turned back on.
Electronic Solar Sensor Electronic Solar Sensor
The sensor monitors the sun’s solar radiation and is
located near the end of the instrument panel near
the windshield.
The climate control panel uses this information to
automatically make
the necessary temperature and
airflow adjustments to maintain your comfort. The
climate control system may supply cooler air to one side
of your vehicle, if that side is facing the sun. Be careful
not to put anything over the sensor on top
of the dash.
3-4

Downloaded from www.Manualslib.com manuals search engine Air Cleaner
The air cleaner is located next to the coolant surge tank
on the driver’s side of the engine. Be sure the engine has
cooled before following
these steps to replace the air
cleaner filter:
2. With a screwdriver,
loosen the air duct
clamp, which is located
at the mass airflow
sensor end of the
air duct.
1. Disconnect the Intake
Air Temperature
(IAT)
sensor from the clean
air duct
.
3. Disconnect the air duct from the mass airflow sensor.
6-16

Downloaded from www.Manualslib.com manuals search engine Follow these steps to reinstall the air cleaner assembly:
1.
2.
3.
4.
5.
Slide the air cleaner lid into the slots in the bottom of
the air cleaner base.
Close the cover and make sure that both latches are
secure and fully engaged.
Reinstall the clean air duct over the mass airflow
sensor. Make sure that the duct is secure around the
entire outer edge of the sensor.
Tighten the air duct clamp. Reconnect the
MI’ sensor.
Refer to the Maintenance Schedule
to determine when to
replace the air filter.
See “Scheduled Maintenance Services” in the
Maintenance Schedule booklet.
’ A ( JTION:
Operating the engine with the air cleaner off can
cause you or others to be burned, The
air cleaner
not only cleans the
air, it stops flame if the engine
backfires.
If it isn’t there, and the engine
backfires, you could be burned. Don’t drive with
it
off, and be careful working on the engine with
the air cleaner off.
I NOTICE:
If the air cleaner is off, a backfire can cause a
damaging engine fire. And, dirt can easily get
into your engine, which will damage it. Always
have the air cleaner in place when you’re driving.
6-18

Downloaded from www.Manualslib.com manuals search engine Brake Wear
Your vehicle has four-wheel disc brakes.
Disc brake pads have built-in wear indicators that make
a high-pitched warning sound when the brake pads are
worn and new pads are needed. The sound may come
and
go or be heard all the time your vehicle is moving
(except when you are pushing on the brake
pedal firmly).
r
A CAUTION:
The brake wear warning sound means that soon
your brakes won’t work well. That could lead to
an accident. When you hear the brake wear
warning sound, have your vehicle serviced.
Your vehicle also has electronic wear sensors that let you
know when the brake pads are significantly worn and new
pads are needed. The
CHANGE BRAKE PADS message
will be displayed on the Driver
Information Center when
the brake pads are worn and need
to be replaced. (See
“Change Brake Pads Message” in the Index.)
-
I A CAUTION:
\-I
The CHANGE BRAKE PADS message or the
high-pitched warning sound means that soon
your brakes won’t work well. That could lead to
an accident. When the
CHANGE BRAKE PADS
message comes on and stays on, have your
vehicle serviced.
6-30

Downloaded from www.Manualslib.com manuals search engine I I I
Minifuses
Fuse
1
2
3
4
5
6
7
Usage
Not Used
Accessory
Windshield Wipers
Not Used
Headlamp Low Beam Left
Headlamp Low Beam Right
Instrument Pariel
Fuse
8
9
10 11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
Usage
Powertrain Control Module Battery
Headlamp High Beam Right
Headlamp High Beam Left
Ignition
1
Not Used
Not Used Cruise Control
Oxygen Sensor A
Injector Bank
#2
Not Used
Powertrain Control Module Ignition
Direct Ignition System
Oxygen Sensor B
Injector
Bank #1
Auxiliary Power
Cigar Lighter
Fog Lamps/Daytime Running Lamps
Horn
Air Conditioner Clutch
6-61