low beam CADILLAC DEVILLE 2005 8.G User Guide

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 located 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.Headlamp Horizontal Aiming
If your vehicle has the horizontal aim indicators, 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.
5-49

Headlamp Vertical Aiming
Notice:Horizontal aiming must be performed
before making any adjustments to the vertical aim.
Adjusting the vertical aim rst 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 lamp; if left low beam, subtract
2 inches (5 cm). Record this distance.3. At the wall or other at 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.
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.
5. 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 at surface.
5-50

6. Turn the vertical aiming
screw (C) until the
headlamp beam
is aimed to the
horizontal tape line.
The top edge of
the cut-off should be
positioned at the
bottom edge of the
horizontal tape line.
7. Repeat Steps 4 through 6 for the opposite
headlamp.
Bulb Replacement
For the proper type of replacement bulbs, see
Replacement Bulbs on page 5-56.
For any bulb changing procedure not listed in this
section, contact your dealer.
Halogen Bulbs
{CAUTION:
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.
Headlamps
To replace a headlamp bulb, do the following:
1. Remove all of the
push-pins that hold the
ller panel cover in
place by pressing in the
center of each pin
and then pulling up on
the outer circle.
5-51

Replacement Bulbs
Exterior Lamp Bulb Number
Cornering Lamps 3157
Front Turn Signal 3157
Headlamps
Lower High-Beam 9005
Upper Low-Beam 9006
For replacement bulbs not listed here, contact your
dealer.
Windshield Wiper Blade
Replacement
Windshield wiper blades should be inspected for wear
and cracking. SeeScheduled Maintenance on page 6-4
for more information on wiper blade inspection.
It is a good idea to clean or replace the wiper blade
assembly on a regular basis or when worn. For proper
windshield wiper blade length and type, seeNormal
Maintenance Replacement Parts on page 6-13.To replace the wiper blade assembly, do the following:
1. Turn the ignition to ACCESSORY and turn the
wipers on. Position the wipers on the windshield
in the mid-wipe position. Then with a door
open, turn the ignition to OFF.
2. Tip the blade up almost to a T position and push
down on the tab to release the wiper blade
assembly.
3. To install, align the wiper blade with the loop on the
wiper blade assembly, and push up to snap it
into place.
5-56

Fuses Usage
1 Assembly Line Diagnostic Work
2 Accessory
3 Windshield Wipers
4 Not Used
5 Headlamp Low Beam Left
6 Headlamp Low Beam Right
7 Instrument Panel
8 Powertrain Control Module Battery
9 Headlamp High Beam Right
Fuses Usage
10 Headlamp High Beam Left
11 Ignition 1
12 Fog Lamps (Option)
13 Transmission
14 Cruise Control
15 Coil Module (Option)
16 Injector Bank #2
17 Not Used
18 Not Used
19 Powertrain Control Module Ignition
20 Oxygen Sensor
21 Injector Bank #1
22 Cigar Lighter #2
23 Cigar Lighter #1
24 Daytime Running Lamps
25 Horn
26 Air Conditioner Clutch
42 Not Used
43 Not Used
44 Anti-Lock Brake System
5-99

Fuses Usage
45 Air Pump
46 Cooling Fan 1
47 Cooling Fan 2
48 Spare
49 Spare
50 Spare
51 Spare
52 Spare
54 Heated Steering Wheel (Option)
Relays Usage
27 Headlamp High Beam
28 Headlamp Low Beam
29 Fog Lamps (Option)
30 Daytime Running Lamps
31 Horn
Relays Usage
32 Air Conditioner Clutch
33 AIR Control Valve (Option)
34 Heated Steering Wheel (Option)
35 Accessory
36 Starter 1
37 Cooling Fan 1
38 Ignition 1
39 Cooling Fan Series/Parallel
40 Cooling Fan 2
Circuit
BreakersUsage
41 Starter
Miscellaneous Usage
53 Fuse Puller
5-100

Fuses
Fuses and Circuit Breakers...........................5-98
Rear Underseat Fuse Block.........................5-101
Underhood Fuse Block.................................5-98
Windshield Wiper.........................................5-97
G
Gage
Engine Coolant Temperature.........................3-49
Fuel..........................................................3-55
Speedometer..............................................3-43
Tachometer.................................................3-44
Garage Door Opener.......................................2-44
Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
Glove Box.....................................................2-49
Glovebox-Mounted CD Changer......................3-100
GM Mobility Reimbursement Program.................. 7-5
H
Hazard Warning Flashers................................... 3-6
Headlamp
Aiming.......................................................5-48
Horizontal Aiming.........................................5-49
Vertical Aiming............................................5-50Headlamp Wiring............................................5-97
Headlamps....................................................5-51
Bulb Replacement.......................................5-51
Daytime Running Lamps...............................3-16
Flash-to-Pass............................................... 3-9
Front Turn Signal, Sidemarker,
Parking and Cornering Lamps....................5-55
Halogen Bulbs............................................5-51
High/Low Beam Changer................................ 3-9
On Reminder..............................................3-16
Wiper Activated...........................................3-16
Heated Seats................................................... 1-3
Heated Steering Wheel..................................... 3-7
Heater...........................................................3-30
Highbeam On Light.........................................3-54
Highway Hypnosis...........................................4-23
Hill and Mountain Roads..................................4-23
HomeLink
®Wireless Control System.................2-44
HomeLink®Wireless Control System
Operation...................................................2-45
Hood
Checking Things Under................................5-10
Release.....................................................5-11
Horn............................................................... 3-6
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-12
6