Cadillac DTS - 2008 Fuse Box Diagram

Cadillac DTS - 2008 Fuse Box Diagram

If you activate the alarm by accident, unlock the driver’s
door with your key. You can also turn off the alarm
by using the unlock button on the RKE transmitter
system, or by starting the car with a valid key.
Changes or modifications made to this system by
other than an authorized service facility could void
authorization to use the theft system.
Testing the Alarm
1. From inside the vehicle, roll down the window, then
get out of the vehicle, keeping the door open.
2. From outside of the vehicle, with the door open,
lock the vehicle using the power door lock or the
RKE system and close the door. Wait 30 seconds
until the security lamp goes off.
3. Reach in and unlock the door using the manual
lock and open the door. The horn will sound and
the hazard lights will flash.
You can turn off the alarm by unlocking the driver’s
door with your key, using the unlock button on the RKE
transmitter or by starting the car with a valid key.
If the alarm does not sound when it should, check to
see if the horn works. The horn fuse may be blown.
To replace the fuse, see
Fuses and Circuit Breakers on
page 5-97
. If the fuse does not need to be replaced,
you may need to have your vehicle serviced.
To reduce the possibility of theft, always arm the
theft-deterrent system when leaving your vehicle.
PASS-Key
®
III+
The PASS-Key
®
III+ system operates on a radio
frequency subject to Federal Communications
Commission (FCC) Rules and with Industry Canada.
This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two conditions:
1. This device may not cause harmful interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation.
This device complies with RSS-210 of Industry Canada.
Operation is subject to the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference received,
including interference that may cause undesired
operation of the device.
Changes or modifications to this system by other than
an authorized service facility could void authorization to
use this equipment.
PASS-Key
®
III+ uses a radio frequency transponder in
the key that matches a decoder in your vehicle.
2-20
PASS-Key
®
III+ Operation
Your vehicle has PASS-Key
®
III+ (Personalized
Automotive Security System) theft-deterrent system.
PASS-Key
®
III+ is a passive theft-deterrent system.
The system is automatically armed when the key
is removed from the ignition.
The system is automatically disarmed when the key
is turned to ON/RUN, ACC/ACCESSORY or START
from the LOCK/OFF position.
You do not have to manually arm or disarm the system.
The security light will come on if there is a problem
with arming or disarming the theft-deterrent system.
When the PASS-Key
®
III+ system senses that someone
is using the wrong key, it prevents the vehicle from
starting. Anyone using a trial-and-error method to start
the vehicle will be discouraged because of the high
number of electrical key codes.
If the engine does not start and the security light
comes on when trying to start the vehicle, there
may be a problem with your theft-deterrent system.
Turn the ignition off and try again.
If the engine still does not start, and the key appears
to be undamaged, try another ignition key. At this time,
you may also want to check the fuse, see
Fuses
and Circuit Breakers on page 5-97
. If the engine still
does not start with the other key, your vehicle needs
service. If your vehicle does start, the first key may
be faulty. See your dealer/retailer who can service
the PASS-Key
®
III+ to have a new key made.
In an emergency, contact Roadside Assistance.
It is possible for the PASS-Key
®
III+ decoder to “learn”
the transponder value of a new or replacement key. Up to
nine additional keys may be programmed for the vehicle.
The following procedure is for programming additional
keys only. If all the currently programmed keys are lost
or do not operate, you must see your dealer/retailer or a
locksmith who can service PASS-Key
®
III+ to have keys
made and programmed to the system.
See your dealer/retailer or a locksmith who can service
PASS-Key
®
III+ to get a new key blank that is cut
exactly as the ignition key that operates the system.
2-21
There are two accessory power outlets in the rear
seat area located on the door armrests next to the
ashtrays.
There may be a small cap that must be removed to
access the accessory power outlet. When not using
the outlet be sure to cover it with the protective cap.
The accessory power outlet can be used at any time.
Notice:
Leaving electrical equipment plugged in
for an extended period of time while the vehicle is
off will drain the battery. Power is always supplied
to the outlets. Always unplug electrical equipment
when not in use and do not plug in equipment
that exceeds the maximum 20 ampere rating.
Certain accessory power plugs may not be compatible
to the accessory power outlet and could result in blown
vehicle or adapter fuses. If you experience a problem
see your dealer/retailer for additional information on the
accessory power outlets.
Notice:
Adding any electrical equipment to your
vehicle may damage it or keep other components
from working as they should. The repairs would not
be covered by your warranty. Do not use equipment
exceeding maximum amperage rating of 20 amperes.
Check with your dealer/retailer before adding
electrical equipment.
Follow the proper installation instructions that are
included with any electrical equipment you install.
Notice:
Improper use of the power outlet can cause
damage not covered by your warranty. Do not hang
any type of accessory or accessory bracket from
the plug because the power outlets are designed for
accessory power plugs only.
Ashtray(s)
Notice:
If you put papers, pins, or other flammable
items in the ashtray, hot cigarettes or other
smoking materials could ignite them and possibly
damage your vehicle. Never put flammable items
in the ashtray.
Front Ashtray
With the full floor console, the ashtray is located
below the climate control system. To open, push down
and then release the cover. To clean the ashtray,
push the lip of the ashtray to remove it. Push the
opposite side of the ashtray’s lip to install.
For vehicles without the floor console, pull the tray
located below the climate controls to reveal the ashtray.
The ashtray can be removed by pulling on the ledge
located at the top of the ashtray.
3-39
A. Underhood Fuse Block. See
Underhood Fuse Block
on page 5-97
.
B. Remote Positive (+) Terminal. See
Jump Starting
on page 5-40
.
C. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” under
Windshield Washer Fluid
on page 5-34
.
D. Engine Coolant Surge Tank and Pressure Cap.
See
Coolant Surge Tank Pressure Cap on page 5-25
and
Cooling System on page 5-28
.
E. Remote Negative (
) Terminal. See
Jump Starting
on page 5-40
Jump Starting.
F. Power Steering Fluid. See
Power Steering Fluid
on page 5-33
.
G. Engine Oil Fill Cap. See “When to Add Engine Oil”
under
Engine Oil on page 5-13
.
H. Engine Oil Dipstick. See “Checking Engine Oil”
under
Engine Oil on page 5-13
.
I. Brake Master Cylinder Reservoir. See “Brake Fluid”
under
Brakes on page 5-35
.
J. Automatic Transmission Fluid Cap and Dipstick
(Out of View). See
Automatic Transmission Fluid
on page 5-19
.
K. Engine Air Cleaner/Filter. See
Engine Air
Cleaner/Filter on page 5-18
.
Engine Oil
Checking Engine Oil
It is a good idea to check the engine oil every time
you get fuel. In order to get an accurate reading,
the oil must be warm and the vehicle must be on
level ground.
The engine oil dipstick handle is a yellow loop.
See
Engine Compartment Overview on page 5-12
for the location of the engine oil dipstick.
1. Turn off the engine and give the oil several minutes
to drain back into the oil pan. If you do not do this,
the oil dipstick might not show the actual level.
2. Pull out the dipstick and clean it with a paper
towel or cloth, then push it back in all the way.
Remove it again, keeping the tip down, and
check the level.
5-13
Power Steering Fluid
The power steering fluid
reservoir is located next
to the underhood fuse
block on the passenger’s
side of the vehicle.
See
Engine Compartment
Overview on page 5-12
for more information
on location.
When to Check Power Steering Fluid
It is not necessary to regularly check power steering fluid
unless you suspect there is a leak in the system or
you hear an unusual noise. A fluid loss in this system
could indicate a problem. Have the system inspected
and repaired.
How to Check Power Steering Fluid
To check the power steering fluid, do the following:
1. Turn the key off and let the engine compartment
cool down.
2. Wipe the cap and the top of the reservoir clean.
3. Unscrew the cap and wipe the dipstick with a
clean rag.
4. Replace the cap and completely tighten it.
5. Remove the cap again and look at the fluid level
on the dipstick.
The level should be at the FULL COLD mark.
If necessary, add only enough fluid to bring the
level up to the mark.
What to Use
To determine what kind of fluid to use, see
Recommended Fluids and Lubricants on page 6-13
.
Always use the proper fluid.
Notice:
Use of the incorrect fluid may damage your
vehicle and the damages may not be covered by
your warranty. Always use the correct fluid listed in
Recommended Fluids and Lubricants on page 6-13
.
5-33
Battery
Your vehicle has a maintenance free battery. When
it is time for a new battery, see your dealer/retailer
for one that has the replacement number shown on
the original battery’s label.
Warning:
Battery posts, terminals, and related
accessories contain lead and lead compounds,
chemicals known to the State of California to cause
cancer and reproductive harm. Wash hands after
handling.
The battery is located under the rear seat cushion.
To access the battery, see
Rear Underseat Fuse
Block on page 5-100
. You do not need to access the
battery to jump start your vehicle. See
Jump Starting
on page 5-40
.
{
CAUTION:
A battery that is not properly vented can let
sulfuric acid fumes into the area under the
rear seat cushion. These fumes can damage
your rear seat safety belt systems. You may
not be able to see this damage, and the safety
belts might not provide the protection needed
in a crash. If a replacement battery is ever
needed, it must be vented in the same manner
as the original battery. Always make sure that
the vent hose is properly reattached before
reinstalling the seat cushion.
5-38
Notice:
If you leave your radio or other accessories
on during the jump starting procedure, they could
be damaged. The repairs would not be covered
by your warranty. Always turn off your radio and
other accessories when jump starting your vehicle.
3. Turn off the ignition on both vehicles. Unplug
unnecessary accessories plugged into the cigarette
lighter or the accessory power outlets. Turn off
the radio and all lamps that are not needed.
This will avoid sparks and help save both batteries.
And it could save the radio!
4. Open the hoods and locate the positive (+) and
negative (
) terminal locations on the other
vehicle. Your vehicle has a remote positive (+)
jump starting terminal and a remote negative (
)
jump starting terminal.
The remote positive (+) terminal is located in the
engine compartment on the passenger’s side of
the vehicle. Lift the red plastic cap to access
the terminal. See
Engine Compartment Overview
on page 5-12
for more information on the location
of the remote positive (+) terminal.
A second remote positive (+) terminal is located on
the rear underseat fuse block.
The remote negative (
) terminal is located behind
the power steering pulley, near the engine cover.
It is marked GND (
).
4.6L LD8 Engine shown,
4.6L L37 Engine similar
5-41
Service Parts Identification Label
This label is on the spare tire cover. It is very helpful if
you ever need to order parts. The label has the
following information:
Vehicle Identification Number (VIN)
Model designation
Paint information
Production options and special equipment
Do not remove this label from the vehicle.
Electrical System
Add-On Electrical Equipment
Notice:
Do not add anything electrical to your
vehicle unless you check with your dealer/retailer
first. Some electrical equipment can damage your
vehicle and the damage would not be covered by
your warranty. Some add-on electrical equipment can
keep other components from working as they should.
Add-on equipment can drain your vehicle’s battery, even
if your vehicle is not operating.
Your vehicle has an airbag system. Before attempting to
add anything electrical to your vehicle, see
Servicing
Your Airbag-Equipped Vehicle on page 1-67
.
Headlamp Wiring
The headlamp wiring system has four individual fuses.
An electrical overload will cause the lamps to go on
and off, or in some cases to remain off. If this happens,
have the headlamp wiring checked right away.
Windshield Wiper Fuses
The windshield wiper motor is protected by an internal
circuit breaker. If the wiper motor overheats due to
heavy snow, the wipers will stop until the motor cools
and will then restart.
A fuse powers the wiper motor. If the fuse blows,
there is an electrical problem. Be sure to have it fixed.
5-96
Power Windows and Other
Power Options
Circuit breakers in the fuse block 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 or goes away.
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 fires
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.
If you ever have a problem on the road and don’t have
a spare fuse, you can borrow one that has the same
amperage. Just pick some feature of your vehicle
that you can get along without — like the radio or
cigarette lighter — and use its fuse, if it is the correct
amperage. Replace it as soon as you can.
Underhood Fuse Block
The underhood fuse block is located on the passenger
side of the engine compartment. Remove the fuse
cover and secondary service cover to access the
fuse block.
Notice:
Spilling liquid on any electrical components
on your vehicle may damage it. Always keep the
covers on any electrical component.
5-97
Fuses
Usage
1
Engine Control Module (ECM), Crank
2
Fuel Injectors Odd
3
Fuel Injectors Even
Fuses
Usage
4
Air Conditioning Clutch
5
Air Injection Reactor (AIR) Solenoid
6
Oxygen Sensor
5-98
Fuses
Usage
7
Emission Device
8
Transmission, Ignition 1
9
Engine Control Module (ECM),
Powertrain Control Module (PCM)
10
Climate Control System,
Instrument Panel Cluster Ignition 1
11
Airbag System
12
Horn
13
Windshield Wiper
14
Fog Lamps
15
Right High-Beam Headlamp
16
Left High-Beam Headlamp
17
Left Low-Beam Headlamp
18
Right Low-Beam Headlamp
19
Windshield Washer Pump Motor
20
Left Front Cornering Lamp
21
Right Front Cornering Lamp
22
Air Pump (J-Case)
Fuses
Usage
23
Antilock Brake System (ABS)
(J-Case)
24
Starter (J-Case)
25
Antilock Brake System (ABS)
Motor (J-Case)
26
Cooling Fan 2 (J-Case)
27
Cooling Fan 1 (J-Case)
28
Windshield Washer Heater (J-Case)
Relays
Usage
29
Powertrain
30
Starter
31
Cooling Fan 2
32
Cooling Fan 3
33
Cooling Fan 1
34
Air Conditioning Clutch
35
Air Injection Reactor (AIR) Solenoid
36
Ignition
37
Air Pump
5-99
Rear Underseat Fuse Block
The rear fuse block is located under the rear seat on
the driver side. The rear seat cushion must be removed
to access the rear fuse block.
Removing the Rear Seat Cushion
Notice:
If you touch the exposed wires with the
metal on the seat cushion, you could cause a
short that could damage the battery and or wires.
Avoid contact between the rear seat and the
fuse center whenever you remove or reinstall
the rear seat. Do not remove covers from any of
the covered parts, and do not store anything
under the seats.
To remove the rear seat cushion, do the following:
1. Pull up on the front of the cushion to release
the front hooks.
2. Pull the cushion up and out toward the front of
the vehicle.
To access the fuse block, pull out and lift up on the
cover latch, located at the end of the fuse block,
near the battery cable.
5-100
Fuses
Usage
1
Fuel Pump
2
Left Park Lamp
3
Run 3 - Rear Blower
Fuses
Usage
4
Right Park Lamp
5
Engine Control Module (ECM)/
Transmission Control Module (TCM)
5-102
Fuses
Usage
6
Memory Module
7
Right Park Lamp (optional)
8
Steering Wheel Illumination
9
Front Heated/Cooled Seat Module
10
Run 2 - Heated/Cooled Seats,
Heated Washer Fluid
11
Rear Heated Seat Module
12
RPA Module
13
PASS-Key
®
III System
14
Unlock/Lock Module
15
Magnetic Ride Control
16
Daytime Running Lamps (DRL)
(optional)
17
Sunroof
18
Body Control Module (BCM) Dim
19
Body Control Module (BCM)
20
Run 1-Heated Steering Wheel
21
Ignition Switch
22
Driver Door Module
23
Rear Lumbar
Fuses
Usage
24
Electronic Leveling Control Module
25
Body Control Module
(Left Turn Signal)
26
Cigarette Lighter,
Auxiliary Power Outlet
27
Navigation
28
Retained Accessory Power 1 (RAP)
29
Passenger Door Module
30
Sensing and Diagnostic Module
31
Accessory Power Outlets
32
Body Control Module (BCM)
(Inadvertent)
33
Retained Accessory Power 2 (RAP)
34
CanisterVent Solenoid
35
Body Control Module (Courtesy)
36
Body Control Module
(Right Turn Signal)
37
Trunk Release
38
Amplifier, Radio
39
Body Control Module (CHMSL)
40
Body Control Module
5-103
Fuses
Usage
41
Stoplamp (optional)
42
OnStar
®
Module
43
Body Modules
44
Radio
45
Door Unlatch (optional)
46
Rear Defogger (J-Case)
47
Electronic Leveling Control
Compressor (J-Case)
48
Blower (J-Case) (optional)
49
Blower (J-Case) (optional)
Resistor
Usage
50
Terminating Resistor
Relays
Usage
51
Front Blower (optional)
52
Rear Defogger
53
Electronic Leveling Control
Compressor
58
Park Lamps
Relays
Usage
59
Fuel Pump
60
License Plate Lamp (optional)
61
Right Park Lamp (optional)
62
Unlock
63
Lock
64
Run
65
Daytime Running Lamps (DRL)
(optional)
66
Door Unlatch (optional)
67
Trunk Release
68
Stoplamp (optional)
69
Overhead Lamps (optional)
70
Retained Accessory Power (RAP)
Circuit
Breakers
Usage
54
Right Front Seat
55
Left Front Power Seat
56
Power Windows
57
Power Tilt Steering Wheel
5-104