Cadillac CTS - 2008 Fuse Box Diagram

Cadillac CTS - 2008 Fuse Box Diagram

This manual includes the latest information at the time it
was printed. We reserve the right to make changes
after that time without notice. For vehicles first sold in
Canada, substitute the name “General Motors of Canada
Limited” for Cadillac Motor Car Division whenever it
appears in this manual.
This manual describes features that may be available in
this model, but your vehicle may not have all of them.
For example, more than one entertainment system may
be offered or your vehicle may have been ordered
without a front passenger or rear seats.
Keep this manual in the vehicle for quick reference.
Canadian Owners
A French language copy of this manual can be obtained
from your dealer/retailer or from:
Helm, Incorporated
P.O. Box 07130
Detroit, MI 48207
1-800-551-4123
www.helminc.com
Propriétaires Canadiens
On peut obtenir un exemplaire de ce guide en français
auprès de concessionnaire ou à l’adresse suivante:
Helm Incorporated
P.O. Box 07130
Detroit, MI 48207
1-800-551-4123
www.helminc.com
Using this Manual
Many people read the owner manual from beginning to
end when they first receive their new vehicle to learn
about the vehicle’s features and controls. Pictures
and words work together to explain things.
Index
A good place to quickly locate information about the
vehicle is the Index in the back of the manual. It is an
alphabetical list of what is in the manual and the
page number where it can be found.
iii
Testing the Alarm
The alarm can be tested by following these steps:
1. From inside the vehicle, lower the driver’s window
and open the driver’s door.
2. Activate the system by locking the doors with the
transmitter.
3. Get out of the vehicle, close the door and wait for
the security light to go out.
4. Then reach in through the window, unlock the door
with the manual door lock and open the door. This
should set off the alarm.
While the alarm is set, the power door unlock switch will
not work.
If the alarm does not sound when it should but the
headlamps flash, check to see if the horn works. The
horn fuse may be blown. To replace the fuse, see
Fuses
and Circuit Breakers on page 5-122
Fuses and Circuit
Breakers.
If the alarm does not sound or the headlamps do not
flash, the vehicle should be serviced by your
dealer/retailer.
Immobilizer
This device complies with Part 15 of the FCC Rules.
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.
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.
Immobilizer Operation (Key Access)
Your vehicle has a passive theft-deterrent system.
The system is automatically armed when the key
is removed from the ignition.
The theft-deterrent system is disarmed when the key is
turned to ON/RUN.
You do not have to manually arm or disarm the system.
2-28
The security light will come on if there is a problem with
arming or disarming the theft-deterrent system.
The key uses a transponder that matches an immobilizer
control unit in your vehicle and automatically disarms
the system. Only the correct key will start the vehicle. If
the key is ever damaged, you may not be able to
start your vehicle.
When trying to start the vehicle, if the engine does not
start and the security light comes on, 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 5-122
. 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
theft-deterrent system and have a new key made.
It is possible for the theft-deterrent system decoder to
learn the transponder value of a new or replacement
key. Up to 10 keys can be programmed for the vehicle.
The following procedure is for programming additional
keys only.
To program a new key do the following:
1. Verify that the new key has
1
stamped on it.
2. Insert the current driver’s key in the ignition and
start the engine. If the engine will not start see
your dealer/retailer for service.
3. After the engine has started, turn the key to
LOCK/OFF, and remove the key.
4. Insert the key to be programmed and turn it to
ON/RUN within five seconds of the ignition being
turned to LOCK/OFF in Step 3.
5. The security light will turn off once the key has
been programmed. It may not be apparent that
the security light went on due to how quickly the
key is programmed.
6. Repeat the Steps 1 through 4 if additional keys are
to be programmed.
In an emergency, contact Cadillac Roadside Service
®
.
See
Roadside Service on page 7-6
.
Do not leave the key or device that disarms or
deactivates the theft deterrent system in the vehicle.
2-29
Immobilizer Operation
(Keyless Access)
Your vehicle has a passive theft-deterrent system.
The system is automatically armed when the ignition
control knob is turned to LOCK/OFF.
The immobilization system is disarmed when the ignition
control knob is pushed in and a valid transmitter is
found in the vehicle.
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.
The system has one or more keyless access
transmitters that are matched to an immobilizer control
unit in your vehicle. Only a correctly matched keyless
access transmitter will start the vehicle. If the keyless
access transmitter is ever damaged, you may not
be able to start your vehicle.
When trying to start the vehicle, if the engine does not
start and the security light comes on, there may be
a problem with your immobilizer system. Turn the
ignition control knob off and try again.
If the ignition control knob does not rotate, and the
keyless access transmitter appears to be undamaged,
try another keyless access transmitter. Or, you may
try placing the transmitter in the transmitter pocket
located in the center console. See “Electronic Key Not
Detected” under
DIC Warnings and Messages on
page 3-54
. At this time, you may also want to check the
fuse. See
Fuses and Circuit Breakers on page 5-122
.
If the ignition control knob still does not rotate with
the other transmitter, your vehicle needs service. If the
ignition control knob does rotate, the first transmitter
may be faulty. See your dealer/retailer who can service
the theft-deterrent system and have a new keyless
access transmitter programmed to the vehicle.
It is possible for the immobilizer system to learn new or
replacement keyless access transmitters. Up to
4 keyless access transmitters can be programmed for
the vehicle. To program additional transmitters, see
“Matching transmitter(s) to Your Vehicle” under
Keyless
Access System Operation on page 2-9
.
Do not leave the key or device that disarms or
deactivates the theft deterrent system in the vehicle.
2-30
Engine Coolant Heater
The engine coolant heater, if available, can help in cold
weather conditions at or below 0°F (
18°C) for easier
starting and better fuel economy during engine warm-up.
Plug in the coolant heater at least four hours before
starting your vehicle. An internal thermostat in the
plug-end of the cord may exist which will prevent
engine coolant heater operation at temperatures
above 0°F (
18°C).
To Use the Engine Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord. The
cord is located in the engine compartment on the
passenger side of the vehicle in front of the
fuse block.
Remove the plastic cap to access the plug.
3. Plug it into a normal, grounded 110-volt AC outlet.
{
CAUTION:
Plugging the cord into an ungrounded outlet
could cause an electrical shock. Also, the
wrong kind of extension cord could overheat
and cause a fire. You could be seriously
injured. Plug the cord into a properly grounded
three-prong 110-volt AC outlet. If the cord will
not reach, use a heavy-duty three-prong
extension cord rated for at least 15 amps.
4. Before starting the engine, be sure to unplug and
store the cord as it was before to keep it away
from moving engine parts. If you do not, it could be
damaged.
How long should you keep the coolant heater plugged
in? The answer depends on the outside temperature, the
kind of oil you have, and some other things. Instead
of trying to list everything here, we ask that you contact
your dealer/retailer in the area where you will be
parking your vehicle. The dealer/retailer can give you
the best advice for that particular area.
2-36
Turn and Lane-Change Signals
To signal a turn, move the lever all the way up or down.
The lever returns automatically when the turn is
complete.
An arrow on the instrument
panel cluster flashes in the
direction of the turn or
lane change.
Raise or lower the lever until the arrow starts to flash to
signal a lane change. Hold it briefly until the lane
change is complete. The arrow will automatically flash
three times The lever returns to its original position when
it is released.
Rapid flashing of arrows when signaling for a turn or
lane change can be caused by a burned-out signal bulb.
Other drivers will not see the signal.
Replace burned-out bulbs to help avoid possible
accidents. Check the fuse for burned-out bulbs if the
arrow fails to work when signaling a turn. See
Fuses and
Circuit Breakers on page 5-122
for more information.
Turn Signal On Chime
If the turn signal is left on for about 1 mile (1.6 km), a
warning chime will sound and the TURN SIGNAL
ON message will appear on the Driver Information
Center (DIC) display. See “Turn Signal On” under
DIC
Warnings and Messages on page 3-54
for more
information.
Headlamp High/Low-Beam Changer
Push forward on the turn signal/multifunction lever
to change the headlamps from low to high beam. Pull
the lever back and then release it to change from high to
low beam.
If the vehicle is turned off while the high beams are on,
they will come on the next time the vehicle is started.
The highbeam light on the
instrument panel cluster,
comes on while the
high-beam headlamps
are on.
3-8
Battery Run-Down Protection
Your vehicle has a feature to help prevent battery drain
if accessory lamps are left on or something is left
plugged into the accessory power outlet or cigarette
lighter, if the vehicle has one. If accessory lamps such
as the vanity mirror, cargo, reading, console, or
glove box are left on, they automatically time-out after
about 20 minutes. To reset the battery protection,
all of the above lamps must be turned off or the ignition
must be in the ACC/ACCESSORY position.
Accessory Power Outlet(s)
Accessory power outlets can be used to connect
auxiliary electrical equipment, such as a cellular
telephone or CB radio.
There are three accessory power outlets. There is an
outlet located in the front storage area below the climate
control system, one inside the center console storage
bin, and one on the rear of the center console.
To use an outlet, remove the protective cap. When not in
use, always cover the outlet with the protective cap. The
accessory power outlet is operational at all times.
Notice:
If electrical devices are left plugged into a
power outlet, the battery may drain causing your
vehicle not to start or damage to the battery.
This would not be covered by the warranty. Always
unplug all electrical devices when turning off
your vehicle.
Certain electrical accessories may not be compatible
with 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 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.
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.
3-21
Ashtray(s) and Cigarette Lighter
Your vehicle may have two removable ashtrays and
cigarette lighters. One ashtray can be placed into
the instrument panel storage compartment and the other
into the center console rear compartment. To use the
lighter, push it in all the way and let go. When it is ready,
it will pop back out by itself.
To empty the ashtrays, grip the edges of the bin and
pull it straight out of the housing. To reinstall, push the
tray back into place.
Notice:
Holding a cigarette lighter in while it is
heating does not let the lighter back away from the
heating element when it is hot. Damage from
overheating can occur to the lighter or heating
element, or a fuse could be blown. Do not hold a
cigarette lighter in while it is heating.
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.
Analog Clock
The analog clock is located on the instrument panel
above the radio. The clock is not connected with
any other vehicle system and runs by itself. To adjust
the clock:
1. Locate the adjustment buttons directly below the
clock face.
2. Push and hold the right adjustment button to move
the clock hands forward or the left adjustment
button to make the clock hands go backward.
Holding either button down will cause the clock to
advance faster. Release the button before the
desired time is reached.
3. Push and release either button to adjust the time by
one minute increments until the desired time is
reached.
3-22
A. Windshield Washer Fluid Reservoir. See “Adding
Washer Fluid” under
Windshield Washer Fluid
on page 5-39
.
B. Underhood Fuse Block. See
Underhood Fuse Block
on page 5-122
.
C. Remote Positive (+) Terminal. See
Jump Starting
on page 5-44
.
D. Remote Negative (+) Terminal. See
Jump Starting
on page 5-44
.
E. Passenger Compartment Air Filter. See
Passenger
Compartment Air Filter on page 3-28
.
F. Engine Cooling Fan. See
Cooling System
on page 5-33
.
G. Power Steering Fluid Reservoir (Under Engine
Cover). See
Power Steering Fluid on page 5-38
.
H. Engine Oil Fill Cap. See “When to Add Engine Oil”
under
Engine Oil on page 5-16
.
I. Engine Oil Dipstick (Out of View). See “Checking
Engine Oil” under
Engine Oil on page 5-16
.
J. Hydraulic Clutch Reservoir (If Equipped) (Not
Shown). See “When to Check and What to Use”
under
Hydraulic Clutch on page 5-26
.
K. Brake Master Cylinder Reservoir (Out of View).
See “Brake Fluid” under
Brakes on page 5-40
.
L. Engine Coolant Surge Tank and Pressure Cap.
See
Coolant Surge Tank Pressure Cap on page 5-30
and
Cooling System on page 5-33
.
M. Engine Air Cleaner/Filter. See
Engine Air
Cleaner/Filter on page 5-21
.
5-15
Replacing Brake System Parts
The braking system on a vehicle is complex. Its many
parts have to be of top quality and work well together if
the vehicle is to have really good braking. Your vehicle
was designed and tested with top-quality brake parts.
When you replace parts of the braking system — for
example, when the brake linings wear down and you
need new ones put in — be sure you get new approved
replacement parts. If you do not, the brakes might not
work properly. For example, if someone puts in brake
linings that are wrong for your vehicle, the balance
between the front and rear brakes can change — for the
worse. The braking performance you have come to
expect can change in many other ways if someone puts
in the wrong replacement brake parts.
Battery
Your vehicle has a maintenance free battery. It is located
in the trunk, behind the trim panel, on the passenger side
of the vehicle. 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.
After a power loss, such as disconnecting the battery or
removing the maxi fuses in the power distribution
fuse block, the following steps must be performed to
calibrate the electronic throttle control. If this is not done,
the engine will not run properly.
1. Turn the ignition to ON/RUN. Do not start the
engine.
2. Leave the ignition in ON/RUN for at least three
minutes so that the electronic throttle control will
cycle and re-learn its home position.
3. Turn the ignition to LOCK/OFF.
4. Start and run the engine for at least 30 seconds.
5-43
Engine Identification
The eighth character in the VIN is the engine code.
This code helps you identify your vehicle’s engine,
specifications, and replacement parts. See
Capacities
and Specifications on page 5-128
for your vehicle’s
engine code.
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 1-68
.
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.
5-121
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.
Lift the fuse block cover to access the fuses.
Notice:
Spilling liquid on any electrical components
on your vehicle may damage it. Always keep the
covers on any electrical component.
5-122
Fuses
Usage
LT LO BEAM
Left Low-Beam Headlamp
RT LO BEAM
Right Low-Beam Headlamp
LO BEAM DRL
Low-Beam Daytime Running
Lamp (DRL)
Fuses
Usage
AIRBAG IGN
Airbag Switch
SPARE
Spare
BCM 7
Body Control Module 7
PED PROT
Not Used
5-123
Fuses
Usage
ECM/TCM IGN
Engine Control Module (ECM),
Transmission Control Module (TCM),
IPC (Instrument Panel Cluster),
PASS-Key
®
III+ Module
MISC IGN
Ignition
EMIS 1
Emission 1
DISPLY
Display
BCM 3
Body Control Module 3
EVEN COILS
Even Coils
BCM 6
Body Control Module 6
BCM 2
Body Control Module 2
ODD COILS
Odd Coils
BCM 1
Body Control Module 1
LT HI BEAM
Left High-Beam Headlamp
PWR MODING
PassKey Module, Body Control
Module
STR/WHL/
ILLUM
Steering Wheel Illumination
EMIS 2
Emission 2
AFS
Adaptive Forward Lighting System
RT HI BEAM
Right High-Beam Headlamp
NAV MTR
Navigation Motor
FRT FOG
Front Fog Lamps
ECM
Engine Control Module
BCM 5
Body Control Module 5
Fuses
Usage
WPR
Windshield Wiper
TRANS
OIL RLY
Transmission Oil Relay
BCM 4
Body Control Module 4
RT LO BEAM
Right Low-Beam Headlamp
AWD
All-Wheel Drive
LT LO BEAM
Left Low-Beam Headlamp
TCM BATT
Transmission Control Module
Battery
DRL RT
Right Daytime Running Lamp (DRL)
SPARE
Spare
ABS
Antilock Brake System
HORN
Horn
WSW PUMP
Windshield Washer Pump
A/C CLTCH
Air Conditioning Compressor Clutch
DRL/ENG
PUMP
Daytime Running Lamps (DRL)
HDM WASH
Headlamp Driver Module Washer
J-Case Fuses
Usage
FAN 2
Cooling Fan 2
SPARE
Spare
FAN 1
Cooling Fan 2
SPARE
Spare
5-124
J-Case Fuses
Usage
STRTR
Starter
TRANS PUMP
Transmission Pump
WSW/HTR
Windshield Washer Heater
BRK VAC
PUMP
Brake Vacuum Pump
BLWR
Blower
ABS MTR
Antilock Brake System Motor
REAR DEFOG
Rear Defogger
SPARE
Spare
Relays
Usage
FAN 2
Cooling Fan 2
FAN S/P
Cooling Fan Series/Parallel
LO BEAM
(W/O HID)
LT DRL (HID)
Low-Beam (without High Intensity
Discharge), Left Daytime Running
Lamp (High Intensity Discharge)
FAN 1
Cooling Fan 1
FOG LAMP
Fog Lamps
SPARE
Spare
Relays
Usage
IGN 1
Ignition 1
STRTR
Starter
PWR/TRN
Powertrain
REAR DEFOG
Rear Defogger
HI BEAM
High-Beam Headlamp
DRL (W/O HID)
LO BEAM (HID)
Daytime Running Lamps
(without High Intensity Discharge),
Low Beam Headlamps (High
Intensity Discharge)
WPR
Windshield Wiper
WPR HI
Windshield Wiper High Speed
HEAD LAMP
WASH
Headlamp Washer
HORN
Horn
WSW PUMP
Windshield Washer Pump
A/C CMPRSR
Air Conditioning Compressor
ENG PUMP
Engine Pump
RT DRL (HID)
Right Daytime Running Lamp
(High Intensity Discharge)
5-125
Rear Compartment Fuse Block
The rear compartment fuse block is located on top of the battery, on the right side of the trunk. The battery access
door must be removed to access the fuse block.
5-126
Relays
Usage
LF FRT/
PWR/SEAT
Left Front Power Seat
RT FRT/
PWR/SEAT
Right Front Power Seat
PWR/WNDW
Power
PWR/CLMN
Power Steering Column
TRUNK/RELSE
Trunk Release
LCK
Lock
FUEL/PUMP
Fuel Pump
UNLCK
Unlock
STOP/LP
Stoplamp
SPARE
Spare
RT/POS/LP
Right Position Lamp
REAR/FOG
Not Used
LT/POS/LP
Left Position Lamp
Fuses
Usage
LT/POS/LP
Left Position Lamp
REAR/FOG
Not Used
SPARE
Spare
RT/POS/LP
Right Position Lamp
RVC/SNSR
Regulated Voltage Control Sensor
LT/REAR/
WNDW
Left Rear Window
Fuses
Usage
DR/LCK
Door Lock
RDO
Audio System
TRUNK/RELSE
Trunk Release
FUEL/PUMP
Fuel Pump
AIRBAG
Airbag System
THEFT/UGDO
Theft Deterrent System,
Universal Home Remote System
SPARE
Spare
RKE/
PASS-Key
®
/
MDL
Remote Keyless Entry System,
PASS-Key
®
Theft Deterrent
Feature Module
MSM
Memory Seat Module
STOP/LP
Stoplamp
RDO/SPKR
Audio Speakers
PDM
Passenger Door Module
RT/POS/LP
Right Position Lamp
ONSTAR
OnStar
®
System
REAR/WNDW
Rear Window
S/ROOF
Sunroof
ECM
Engine Control Module (ECM)
AUX/OUTLET
Auxiliary Power Outlet
CNSTR/VENT
Canister Vent
AMP
Amplifier
5-127