2002 CADILLAC SEVILLE low beam

6-39
8. After removing the wiring harness connector from
the headlamp bulb socket, replace the bulb
assembly. Reconnect it to the wiring harness and
reinstall the headlamp bulb assembly back into the
headlamp housing.
9. After reinstalling the bulb and socket, reinstall the
rubber cover. Make sure it fully covers the
headlamp socket.
10. To replace the high
-beam bulb, turn the bulb socket
counterclockwise to unlock the socket from the
lamp housing. Follow the instructions in Step 6
through 8 to install the new bulb.
11. Reinstall the upper filler panel by inserting the
grommets, along with the screws, back into
the holes.

6-40
Headlamp Aiming
Your vehicle has a visual optical headlamp aiming
system equipped with horizontal aim indicators. The
aim has been preset at the factory and should need no
further adjustment. This is true even though your
horizontal aim indicators may not fall exactly on
the ª0º (zero) marks on their scales.If your vehicle is damaged in an accident, the headlamp
aim may be affected. Aim adjustment to the low beam
may be necessary if it is difficult to see lane markers
(for horizontal aim), or if oncoming drivers flash their
high beams at you (for vertical aim). If you believe your
headlamps need to be re
-aimed, we recommend that
you take your vehicle to your dealer for service.
However, it is possible for you to re
-aim your
headlamps as described in the following procedure.
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.

6-41
The vehicle should be properly prepared as follows:

The vehicle should be placed so the headlamps
are 25 ft. (7.6 m) from a light colored wall or other
flat surface.

The vehicle must have all four tires on a perfectly
level surface which is level all the way to the wall or
other flat surface.

The vehicle should be placed so it is perpendicular to
the wall or other flat 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.

The vehicle should be normally loaded with a full
tank of fuel and one person or 160 lbs. (75 kg) on
the driver's seat.

Tires should be properly inflated.

Start the vehicle and rock it to level the suspension.
Headlamp aiming is done with the vehicle low beam
lamps. The high beam lamps will be correctly aimed if
the low beam lamps are aimed properly.The headlamp aiming devices are under the hood near
the headlamps.
If you believe your headlamps need horizontal
(left/right) adjustment, follow the horizontal aiming
procedure. If you believe your headlamps need only
vertical (up/down) adjustment, follow only the vertical
aiming procedure.
Adjustment screws can be turned with an E8 Torx

socket or T15 Torx screwdriver.

6-42
Headlamp Horizontal Aiming
Turn the horizontal
aiming screw (A) until
the indicator (B) is
lined up with zero.
Once the horizontal aim is adjusted, then adjust the
vertical aim.Headlamp Vertical Aiming
NOTICE:
Horizontal aiming must be performed before
making any adjustments to the vertical aim.
Adjusting the vertical aim first will result in an
incorrect headlamp aim.
1. Find the aim dot on the lens of the low beam lamps.
2. Measure the distance from the ground to the aim dot
on each low beam lamp. Record this distance.

6-43
3. At the wall or other flat surface, measure from the
ground upward the recorded distance from Step 2
and draw or tape a horizontal line the width of
the vehicle.4. Turn on the low-beam headlamps and place a piece
of cardboard or equivalent in front of the headlamp
not being aimed. This should allow only the beam of
light from the headlamp being aimed to be seen on
the flat surface.
NOTICE:
Do not cover a headlamp to improve beam
cut
-off when aiming. Covering a headlamp may
cause excessive heat build
-up which may cause
damage to the headlamp.

6-72
Minifuses Usage
1 ALDL
2 Accessory
3 Windshield Wipers
4 Not Used
5 Headlamp Low Beam Left Minifuses Usage
6 Headlamp Low Beam Right
7 Instrument Panel
8 Powertrain Control
Module Battery
9 Headlamp High Beam Right
10 Headlamp High Beam Left
11 Ignition 1
12 Fog Lamps
13 Transmission
14 Cruise Control
15 Coil MDL
16 Injector Bank #2
17 Not Used
18 Not Used
19 Powertrain Control
Module Ignition
20 Oxygen Sensor

6-73
Minifuses Usage
21 Injector Bank #1
22 Auxiliary Power, (Cltr2)
23 Cigar Lighter
24 Daytime Running Lamps
25 Horn
26 Air Conditioner Clutch
Micro Relays Usage
27 Headlamp High Beam
28 Headlamp Low Beam
29 Fog Lamps
30 Daytime Running Lamps
31 Horn
32 Air Conditioner Clutch
Mini Relays Usage
33 Not Used
34 AccessoryMini Relays Usage
35 Not Used
36 Starter 1
37 Cooling Fan Secondary
38 Ignition 1
39 Cooling Fan Series/Parallel
40 Cooling Fan Primary
Maxibreaker Usage
41 Starter
42 Export Use
MaxiFuses Usage
43 Not Used
44 Antilock Brake System
45 Air Pump
46 Cooling Fan Secondary
47 Cooling Fan Primary
The spare fuses are located in numbers 48 through 52.
The fuse puller is located in number 53.

6-79
Replacement Bulbs
For any bulb not listed here contact your dealer.
Application Number
Headlamps Composite
High Beam 9005HB3. . . . . . . . . . . . . . . . . . . . . . . .
Low Beam 9006HB4. . . . . . . . . . . . . . . . . . . . . . . . .
Front Turn Signal 2357NA. . . . . . . . . . . . . . . . . . . . . .
Stop/Taillamp 3057. . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Turn Signal 3057. . . . . . . . . . . . . . . . . . . . . . . .
Capacities and Specifications
The following approximate capacities are given in
English and metric conversions. Please refer to
ªRecommended Fluids and Lubricantsº Index for
more information.
Engine Specifications
Displacement 279 cubic inches (4 565 cc). . . . . . . . .
Type 4.6 L DOHC V8. . . . . . . . . . . . . . . . . . . . . . . . .
VIN Engine Code
SLS Y. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STS 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Torque
SLS 300 (lb
-ft) @ 4000 rpm . . . . . . . . . . . . . . . . . .
407 (N´m) @ 4000 rpm
STS 295 (lb
-ft) @ 4400 rpm . . . . . . . . . . . . . . . . . .
400 (N´m) @ 4400 rpm
Firing Order 1
-2-7-3-4-5-6-8 . . . . . . . . . . . . . . . . .
Wheel Nut Torque
100 lb-ft (140 N´m)