sensor BUICK PARK AVENUE 1999 Owners Manual

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Air bags are designed to inflate only once. After they
inflate, you'll need some new parts for your air bag
system. If you don't get them, the air bag system
won't be there to help protect you in another crash.
A new system will include air bag modules and
possibly other parts. The service manual for your
vehicle covers the need to replace other parts.

Your vehicle is equipped with a crash sensing and
diagnostic module, which records information about
the air bag system. The module records information
about the readiness of the system, when the sensors
are activated and driver's safety belt usage at
deployment. Some modules also record speed,
engine rpm, brake and throttle data.

Let only qualified technicians work on your air
bag system. Improper service can mean that your
air bag system won't work properly. See your dealer
for service.
NOTICE:
If you damage the covering for the driver's or the
right front passenger's air bag, the bag may not
work properly. You may have to replace the air
bag module in the steering wheel or both the air
bag module and the instrument panel for the
right front passenger's air bag. Do not open or
break the air bag coverings.
Servicing Your Air Bag-Equipped Vehicle
Air bags affect how your vehicle should be serviced.
There are parts of the air bag system in several places
around your vehicle. You don't want the system to
inflate while someone is working on your vehicle.
Your dealer and the Park Avenue Service Manual
have information about servicing your vehicle and the
air bag system. To purchase a service manual, see
ªService and Owner Publicationsº in the Index.
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2-39
Moisture-Sensing Delay Windshield Wipers
(If Equipped)
The moisture sensor is mounted on the passenger's interior
side of the windshield behind the rearview mirror and is
used to automatically operate the wipers by monitoring the
amount of moisture on the windshield.The moisture
-sensing system is activated by turning the
wiper control band to one of the five sensitivity levels
within the delay area. The delay position closest to
OFF/MIST is the lowest sensitivity setting. This allows
more water to collect on the windshield between wipes.
You can increase the sensitivity of the system and the
frequency of wipes by turning the wiper control band
away from you to the other delay settings. A single wipe
will occur each time you turn the wiper control band to a
higher sensitivity level.
An initial wipe occurs when you turn the ignition on as a
reminder that the rain sense feature is active.
The moisture
-sensing wipers operate in a delay mode as
well as a continuous low or high speed, depending on the
amount of moisture on the windshield and the sensitivity
setting. The MIST and wash cycles operate as normal and
are not affected by the moisture
-sensing function.
NOTICE:
Turn the wiper band to OFF to avoid wiper
damage when going through an automatic
car wash.
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2-44
Pull the headlamp knob out to the first position to turn
on the parking, license and sidemarker lamps. Pull the
knob out further, to the second position, to turn on the
headlamps. Push the knob all the way back in to turn off
the parking and headlamps.
Lamps On Reminder
If you leave the manual headlamp or parking lamp
switch on, remove the key from the ignition and open
the driver's door, you will hear a continuous warning
chime. The chime will turn off when the lamps are
turned off.
Daytime Running Lamps
Daytime Running Lamps (DRL) can make it easier for
others to see the front of your vehicle during the day.
DRL can be helpful in many different driving
conditions, but they can be especially helpful in the
short periods after dawn and before sunset.
A light sensor on top of the instrument panel monitors
the exterior light level for the operation of DRL and
twilight sentinel, so be sure it isn't covered.
The DRL system will make your high
-beam headlamps
come on at reduced brightness in daylight when:

The ignition is on,

The headlamp switch is off and

The transaxle is not in PARK (P).
When DRL are on, only your high
-beam headlamps will
be on. The parking lamps, taillamps, sidemarker and
other lamps won't be on. Your instrument panel won't
be lit up either.
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2-45
When it's dark enough outside, your high-beam
headlamps will change to low
-beam headlamps at full
brightness. The other lamps that turn on with your
headlamps will also turn on. When it's bright enough
outside, the regular lamps will turn off, and your
high
-beam headlamps change to the reduced brightness
of DRL.
To idle your vehicle with the DRL off, shift the
transaxle into PARK (P). The DRL will stay off until
you shift out of PARK (P).
To turn off all exterior lighting at night when you are
parked, turn off the headlamps and move the twilight
sentinel control all the way to the left in the slider
control. When released, the control will return to the
twilight sentinel minimum delay position and the lights
will turn off.
As with any vehicle, you should turn on the regular
headlamp system when you need it.
Cornering Lamps
The cornering lamps are designed to come on when you
signal a turn. This will provide more light for cornering
at night.
Twilight Sentinel
Twilight Sentinel turns
your headlamps on and
off by sensing how dark it
is outside.
To operate this feature, slide
the control to any position
to vary the lamp timeout.
If you move the control all the way to MAX, your lamps
will remain on for three minutes after you turn off your
engine. If you move the control almost all the way in the
other direction, so it's just on, the lamps will go off
quickly when you turn off your engine. You can set this
delay time from only a few seconds to three minutes.
Light Sensor
Your twilight sentinel and daytime running lamps work
with the light sensor on top of the instrument panel.
Don't cover it up. If you do, it will read ªdarkº and the
headlamps will come on.
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2-46
Interior Lamps
Instrument Panel Intensity Control
Instrument panel light brightness can be adjusted
by turning the headlamp knob counterclockwise
and clockwise.
Courtesy Lamps
When any door is opened, several lamps go on. They
make it easy for you to enter and leave the car. You can
also turn these lamps on by turning the headlamp knob
clockwise all the way past the normal stop.
Illuminated Entry System
When you open either front door or press the UNLOCK
button on the remote keyless entry transmitter, the lamps
inside your vehicle will turn on. These lamps will turn off
after about 40 seconds. These lamps will also turn off if
you start the engine or activate the power door locks.
Delayed Entry Lighting
When you open the door, the interior lamps will come
on. When you close the door with the ignition off, the
interior lamps will stay on for 25 seconds or until the
ignition is turned to an on position. Please note that locking the doors with the power door
lock switch will override the delayed entry lighting
feature and the lamps will turn off right away.
NOTE: Using the remote keyless entry transmitter to
lock the door will not cancel delayed lighting.
Theater Dimming
This feature allows for a three to five-second fade out of
the courtesy lamps instead of immediate turn off.
Delayed Exit Lighting
With this feature, the interior lamps will come on for
25 seconds after you remove the key from the ignition.
This will give you time to find the door pull handle or
lock switches.
Parade Dimming
This feature prohibits the dimming of your instrument
panel displays during daylight while your headlamps are
on. This feature operates with the light sensor for the
twilight sentinel and is fully automatic. When the light
sensor reads darkness outside, you will be able to dim
your instrument panel displays once again.
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2-74 Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel, which shows 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 modules,
the wiring and the crash sensing and diagnostic module.
For more information on the air bag system, see ªAir
Bagº in the Index.
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.
Battery Warning Light
When you turn the key
to RUN, this light will
come on briefly, to show
the battery charging
system is working.
When the light goes off and stays off, the charging
system is working.
If the light stays on, a chime will sound indicating
you need service, and you should take your vehicle to
the dealer at once. To save your battery until you get
there, turn off all accessories and turn off your climate
control system.
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Sun and temperature sensors automatically adjust the air
temperature, the airflow direction and the fan speed to
maintain your comfort setting. The system may supply
cooler air to the side toward the sun. Be careful not to
put anything over the sensors on top of the dash.
Temperature Button
To adjust the comfort level you want maintained inside
the vehicle, push the TEMP button. If you want a
warmer comfort level, push the red arrow. If you want a
cooler comfort level, push the blue arrow. Your comfort
setting is shown in the display.Fan Button
The speed of the blower fan is controlled automatically
if you have the system set for AUTO. Pressing the
FAN button will display and hold the current blower
fan setting.
If you want the blower fan to run at a lower speed, push
the bottom of the FAN button. The fan speed will
decrease with every push of the button until the lowest
speed is reached. If you want to increase the fan speed,
push the top of the FAN button. Notice the fan
indicators on the display.
Mode Controls
Press the AIR FLOW button to deliver air through the
floor, middle or windshield outlets. The system will stay
in the selected mode until the AUTO button is pushed.
Press the up or down arrow on the AIR FLOW button to
cycle through the available modes.
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6-67 Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from
short circuits by a combination of fuses and circuit
breakers. This greatly reduces the chance of damage
caused by electrical problems.
Look at the silver
-colored band inside the fuse. If the
band is broken or melted, replace the fuse. Be sure you
replace a bad fuse with a new one of the identical size
and rating.
There are three fuse blocks in your vehicle: the
Instrument Panel Fuse Block located under the
instrument panel, the Underhood Fuse Block located on
the passenger's side engine compartment and the Rear
Fuse Block, located under the rear seat.Instrument Panel Fuse Block
The instrument panel fuse block is located to the far
right side under the instrument panel.
Remove the hush panel on the passenger's side to reveal
the fuses. To remove the panel, do the following:
1. Remove the two 7 mm screws located along the front
edge of the panel.
2. Lower the hush panel. The fuse block is a
rectangular covered box located on the far right side
under the instrument panel.
3. Remove the cover. Now you can see the fuses and
replace them.
4. Place the wide end of the fuse puller over the plastic
end of the fuse.
5. Squeeze the ends over the fuse and pull it out.
Spare fuses are located in the empty slots shown on the
following chart.
When finished, replace the hush panel. Replace lamps,
connectors, and HVAC duct temperature sensors if they
were removed.
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6-68
Fuse Usage
SBM Interior Lamps
PDM PDM Module
A/C HVAC Motor, HVAC Mix Motors
IGN SEN EC Mirror, Driver HTS Seat,
Rear Defog Relay, MEM Module,
Cool LVL Sensor,
Pass Heated SeatFuse Usage
ELC HVAC Flat Pk Mtrs, ELC Sensor,
ELC Sensor (R Bec)
ABS
Anti
-Lock Brake System Module
HVAC HVAC Main Con Head,
HVAC Programmer, IPC
CR CONT Stepper Motor CR, Cruise Switch
HUD HUD Switch, HUD Display
CSTR/SBM HVAC Programmer, IPC (Cluster),
SBM (275 to LCM) (1135 to
BTSI SL)
LP PK L Underhood Lamp, L PK/Side-
marker, L Park/Turn Lamp, SBM,
L Tail Signal Lamp, L Tail/Stop
Lamp, L Rear Sidemarker
LP PK R Rt Pk/Sidemarker Lamp, Rt PK/
Turn Lamp, Rt Tail/Sign Lamp,
Rt Tail/Stoplamp,
Rt Rear Sidemarker, Stop/Tail
Lamp, Tail/Signal Lamp,
License Lamp, RFA
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6-70
Position Circuitry
4
Pre
-Oxygen Sensor, Post-Oxygen
Sensor
5
SDM
-R Module
6 PCM, MAF Sensor
7 AC Clutch
8 Brake Switch, Trans Shift, PCM/
EGR Ref, Lin EGR, Cnstr Purge
Sol, Cnstr Purge SW
9 Horn Relay
10 Not Used
11 Not Used
12
Injectors #1
-6
13 Ignition Module
14 Rt High Beam
15 Not Used
16 Lt High Beam
17 Not Used
18 Rt Low BeamPosition Circuitry
19 Lt Low Beam
20 Turn Signal, Stepper Mtr,
Brake Lamp, CHMSL
21 Fuel Pump Relay (Wire in BEC)
22 Ignition Switch
23 In Key Module, PCM
24
To IP BEC
-B/U Lamp
25 Flasher Module
26 Not Used
27 Not Used
28
Relay
--Ignition
29
Relay
--Horn
30
Relay
--Cooling Fan #2
31
Relay
--Starter
32 Not Used
33
Relay
--Cooling Fan S/P
34
Relay
--Cooling Fan #1
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