1998 Oldsmobile Aurora headlamp

Bulb Replacement
For any bulb changing procedure not listed in this
section, contact your retailer’s service department.
For the type of bulb to use, see “Replacement Bulbs” in
the Index.
Halogen Bulbs
‘ A CAUTION:
A
Exterior Front Bulbs
1
Halogen bulbs have pressurized gas inside and
can burst if you drop or scratch the bulb. You or
others could be injured. Be sure to read and
follow the instructions on the bulb package.
A. Front Turn Signal
B. Headlamps
The entire front headlamp assembly must be removed to
replace
the headlamps and front turn signal bulbs. You
may find it easier
to remove the air cleaner assembly
when replacing bulbs on
the driver’s side.
If more hand clearance is required, remove the air
cleaner assembly as instructed in Steps 1 through
3
earlier in this section.
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Low-Beam Headlamp Bulbs
If you need to replace a low-beam headlamp bulb, do
the following:
1. Remove the two bolts and pull out the headlamp
assembly for more hand clearance.
I
0
II
3. Unclip the bulb
assembly from the
wiring harness and
replace the bulb.
4. Reverse Steps 1 through 4 to replace the bulb
assembly, headlamp housing, air cleaner cover
and tube.
5. Replace the headlamp assembly by aligning the pin
and tightening the two bolts to secure it.
2. Twist the bulb assembly one-sixth of a turn to the
left and pull out the bulb assembly.
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High-Beam Headlamp Bulbs
If you need to replace a high-beam headlamp bulb, do
the following:
1. Remove the headlamp assembly if you need more
hand clearance.
2. Pull up on the wiring harness. This unlocks the bulb.
1.
4. To replace the bulb, angle the new bulb into the
empty socket.
5. Push the base of the bulb down to lock it into place.
6. If you removed the headlamp assembly, reassemble
it by aligning the pin and tightening the two bolts
to
secure it.
Front Turn Signal
The turn signal bulb is on the inboard edge of the
headlamp assembly.
To replace a bulb, do the following:
2.
3.
4.
3. Now you can reach in behind the lamp housing and
pull out the bulb. Remove
the headlamp assembly
if you need more
hand clearance.
Reach in and press the locking tab while twisting the
bulb assembly one-quarter
of a turn to the left
(counterclockwise).
Replace the bulb and reverse Step
2 to reassemble.
If you removed the headlamp assembly, reassemble
it by aligning the pin and tightening
the two bolts to
secure it.
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Headlamp Aiming
Your vehicle has the composite headlamp system. These
headlamps have horizontal and vertical aim indicators.
The aim has been pre-set at the factory and should need
no further adjustment.
If your vehicle is damaged in an accident and the
headlamp aim seems to be affected, see your retailer.
Headlamps on damaged vehicles may require
recalibration of the horizontal aim by your retailer.
To check the aim, the vehicle should be properly
prepared as follows:
0
0
0
0
The vehicle must have all four tires on a perfectly
level surface.
If necessary, pads may be used on an
uneven surface.
The vehicle should not have any snow, ice or mud
attached to
it.
The vehicle should be fully assembled and all other
work stopped while headlamp aiming is being done.
There should not be any cargo or loading
of the
vehicle, except
it should have a full tank of gas and
one person or
160 lbs. (75 kg) on the driver’s seat.
0 Tires should be properly inflated.
Rock the vehicle to stabilize the suspension.
~
NOTICE:
To make sure your headlamps are aimed
properly, read all the instructions before beginning. Failure to follow these instructions
could cause damage to headlamp parts.
For the vertical adjustment, state inspection stations
generally will allow a reading of plus
0.76 degrees or
minus 0.76 degrees from the center of the bubble.
It is recommended that the upper limit
not exceed plus
0.4 degrees from the center of the bubble. Other drivers
may flash their high beams at you if your adjustment is
much above plus
0.4 degrees.
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If you find that the headlamp aiming needs adjustment,
follow these steps:
Start with the vertical headlamp aim. Don't try to adjust
the horizontal aim first. Adjustment screws can be
turned with
an E8 Torx@socket or T15 Torx screwdriver.
1. Check the vertical aim for each headlamp. The
vehicle must be parked on a level surface. Turn the
vertical aiming screw until the bubble in the level is
centered at
0 (zero).
i I
2. After the vertical aim is correct, check the horizontal
aim for each headlamp and adjust as necessary. Turn
the horizontal aiming screw until the pointer is lined
up with the
0 (zero).
3. Visually recheck the vertical aim, to make sure it is
still correct after the horizontal aim adjustment.
Readjust,
if necessary.
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NOTICE:
The wrong wheel can also cause problems with
bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper
height, vehicle ground clearance and tire or tire
chain clearance to the body and chassis.
See “Changing a Flat Tire” in the Index for more
information.
Used Replacement Wheels
Putting
a used wheel on your vehicle is
dangerous. You can’t know how it’s been used or
how far it’s been driven. It could fail suddenly
and cause an accident. If you have to replace
a
wheel, use a new GM original equipment wheel.
Tire Chains
NOTICE:
Use tire chains only where legal and only when
you must. Use only
SAE Class “S” type chains
that are the proper size for your tires. Install
them on the front tires and tighten them as
tightly as possible with the ends securely
fastened. Drive slowly and follow the chain
manufacturer’s instructions. If you can hear the
chains contacting your vehicle, stop and retighten
them.
If the contact continues, slow down until it
stops. Driving too fast or spinning the wheels
with chains on will damage your vehicle.
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Electrical System
Add-on Electrical EquiD: t
NOTICE:
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Don’t add anything electrical to your vehicle
unless you check with your retailer first. Some electrical equipment can damage your vehicle
and the damage wouldn’t be covered by your
warranty. Some add-on electrical equipment can keep other components from working as
they should.
Headlamp Wiring
The headlamp wiring is protected by a circuit breaker
in the wiring harness.
An electrical overload will cause
the lamps to go on and
off, or in some cases to remain
off. If this happens, have your headlamp system checked
right away.
Windshield Wiper Fuses
The windshield wiper motor is protected by an internal
circuit breaker and a fuse
in the fuse panel on the other
side of the instrument panel.
If the motor overheats due
to heavy snow, etc., the wiper will stop until the motor
cools.
If the overload is caused by some electrical
problem, have it fixed.
Your vehicle has an air bag system. Before attempting to
add anythng electrical
to your vehicle, see “Servicing
Your
Air Bag-Equipped Vehicle” in the Index.
Power Windows and Other Power Options
Circuit breakers in the fuse panel protect the power
windows and other power accessories. When the current
load
is too heavy, the circuit breaker opens and closes,
protecting the circuit until the problem is fixed.
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REAR COMPARTMENT
PASSENGER SIDE FUSE BLOCK
1s
PWR SI'
i
I6
HDLP
1
18
PCM! VATS
I
IGN 3
20
ItiN I
Fuse
172
3
4
596
7
899
10
11
12, 13
14
15
16
17
18
19
20
21
Usage
Spare
Open
Breaker
-- Power Window, Sunroof
Spare
Open
Spare
Open
Breaker
-- Power Seat
Spare
Open
Power Seat Breaker
-- Headlamps
HVAC Blower Motor
Powertrain Control Module, PASS-Key@II
Ignition
3
Ignition 1
Rear Defogger
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