Cadillac CTS - 2003 Fuse Box Diagram

Cadillac CTS - 2003 Fuse Box Diagram

2-21
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 switch or the
remote keyless entry transmitter and close the door.
Wait approximately 30 seconds until the security
light goes off.
3.
Reach in and unlock the door using the manual lock
and open the door. The horn will sound and the
exterior lamps will flash.
You can turn off the alarm by unlocking the driver’s
door with your key, using the unlock button on the
remote keyless entry 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” in the
Index. 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.
Immobilizer
Your vehicle is equipped
with a passive
theft
-
deterrent system.
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, and
(2) this device must accept any interference received,
including interference that may cause undesired
operation.
2-22
This device complies with RSS
-
210 of Industry Canada.
Operation is subject to the following two conditions:
(1) this device may not cause interference, and (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.
The system works when you turn the key to ON (II).
The key uses a transponder that matches an immobilizer
control unit in your vehicle. The correct key will start
the vehicle.
Your vehicle has a special key that works with the
theft
-
deterrent system. There is a transponder in the key
head. 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, the key may
have a damaged transponder. 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” in the Index. 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 who can service the theft
-
deterrent
system to 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 additional keys may be programmed for
the vehicle. This procedure is for learning additional
keys only.
2-46
Turn Signal/Multifunction Lever
The lever on the left side of the steering column
includes the following:
D
Turn and Lane
-
Change Signals
D
Headlamps
D
Headlamp High/Low Beam
-
Changer
D
Flash
-
To
-
Pass Feature
D
Fog Lamps
For more information on the exterior lamps, see
“Exterior Lamps” later in this section.
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.
Arrows on the instrument
panel cluster flash 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 there until the lane change
is complete. The lever returns to its original position
when it’s released.
Arrows that flash rapidly when signaling for a turn or
lane change may be caused by a burned
-
out signal bulb.
Other driver’s won’t see the signal.
Replace burned
-
out bulbs to help avoid possible
accidents. Check the fuse and for burned
-
out bulbs if the
arrow fails to work when signaling a turn. See “Fuses
and Circuit Breakers” in the Index for more information.
2-69
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 for additional information on
accessory power outlets.
NOTICE:
Adding some electrical equipment to your vehicle
can damage it or keep other things from working
as they should. This wouldn’t be covered by your
warranty. Check with your dealer before adding
electrical equipment, and never use anything that
exceeds the amperage rating.
When adding electrical equipment, be sure to follow the
proper installation instructions included with the
electrical equipment you install.
NOTICE:
Power outlets are designed for accessory plugs
only. Do not hang any type of accessory or
accessory bracket from the plug. Improper use of
the accessory power outlets can cause damage not
covered by your warranty.
6-10
Engine Compartment Overview
When you open the hood, you’ll see the following:
A. Battery
B.
Underhood Fuse Block
C.
Windshield Washer
Fluid Reservoir
D.
Passenger Compartment
Air Filter
E.
Power Steering Fluid Reservoir
F.
Engine Oil Fill Cap
G.
Engine Oil Dipstick
H.
Engine Coolant Heater Cord
(If Equipped)
I.
Brake Master Cylinder Reservoir
J.
Engine Air Cleaner/Filter
K.
Hydraulic Clutch Reservoir
(Manual Transmission Only)
L.
Engine Coolant Surge Tank and
Pressure Cap
6-34
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 GM brake parts.
When you replace parts of your braking system
--
for
example, when your brake linings wear down and you
need new ones put in
--
be sure you get new approved
GM replacement parts. If you don’t, your brakes may no
longer work properly. For example, if someone puts in
brake linings that are wrong for your vehicle, the balance
between your front and rear brakes can change
--
for the
worse. The braking performance you’ve come to expect
can change in many other ways if someone puts in the
wrong replacement brake parts.
Battery
Your new vehicle comes with a maintenance free
ACDelco
R
battery. When it’s time for a new battery, get
one that has the replacement number shown on the
original battery’s label. We recommend an ACDelco
battery. See “Engine Compartment Overview” in the
Index for battery location.
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.
CAUTION:
Batteries have acid that can burn you and gas
that can explode. You can be badly hurt if you
aren’t careful. See “Jump Starting” in the Index
for tips on working around a battery without
getting hurt.
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 key to ON. Do not start the engine.
2.
Leave the ignition in ON for at least three minutes so
that the electronic throttle control will cycle and
re
-
learn its home position.
3.
Turn the ignition to OFF.
4.
Start and run the engine for at least 30 seconds.
Also, for your audio system, see “Theft
-
Deterrent
Feature” in the Index.
6-59
Electrical System
Add-On Electrical Equipment
NOTICE:
Don’t add anything electrical to your vehicle
unless you check with your dealer 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.
Your vehicle has an air bag system. Before attempting to
add anything electrical to your vehicle, see “Servicing
Your Air Bag
-
Equipped Vehicle” in the Index.
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.
Power Windows and Other Power Options
Circuit breakers protect the power windows and power
seats. When the current load is too heavy, the circuit
breaker opens and closes, protecting the circuit until the
problem is fixed or goes away.
6-60
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 a fuse blows, see your dealer for service
immediately.
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. 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.
The fuses are located in three fuse blocks, one located in
the engine compartment on the passenger’s side and the
other two under the rear seat.
Underhood Fuse Block
The underhood fuse block is located in the engine
compartment on the passenger’s side of the vehicle. See
“Engine Compartment Overview” in the Index for more
information on location.
To access the fuses, push in the two tabs located on each
side of the fuse block cover. Then lift the cover off.
6-62
Relays
Usage
BLOWER
RELAY MINI
Front Blower
FOG LAMP
RELAY MICRO
Fog Lamps
MAIN RELAY
MICRO
Powertrain/ECM
STARTER
RELAY MINI
Starter Solenoid
CMP CLU
RELAY MICRO
Compressor Clutch
IGN
-
1 RELAY
MICRO
Ignition Switch (ON)
Wiring
Harnesses
Usage
BODY W/H
Wiring Harness Connection
BODY W/H
Wiring Harness Connection
ENG W/H
Engine Wiring Harness
Connection
J Cases
Usage
R REAR
RRPDB (Passenger’s Side Rear
Power Distribution Box)
R REAR
RRPDB (Passenger’s Side Rear
Power Distribution Box)
L REAR
LRPDB (Driver’s Side Rear
Power Distribution Box)
L REAR
LRPDB (Driver’s Side Rear
Power Distribution Box)
HI FAN
High Cooling Fan Motor
LO FAN
Low Cooling Fan Motor
BLOWER
PWM Fan Motor Assembly
STARTER
Starter Solenoid
EBCM
Electronic Brake Control Module
Mini Fuses
Usage
RT PARK
Passenger’s Side Taillamp
Assembly, Front Sidemarker and
Front Parking Lamp Assembly
HORN
Dual Horn Assembly
6-63
Mini Fuses
Usage
LT HI BEAM
Driver’s Side High
-
Beam
Headlamp
LT LOW BEAM
Driver’s Side Low
-
Beam
Headlamp
RT LOW BEAM
Passenger’s Side Low
-
Beam
Headlamp
RT HI BEAM
Passenger’s Side High
-
Beam
Headlamp
SPARE
Not Used
SPARE
Not Used
THEFT
ECM (Electronic Control
Module), TCM (Transmission
Control Module), PASS
-
Key III+
Module
LT PARK
Driver’s Side Taillamp Assembly,
Front Sidemarker and Front
Parking Lamp Assembly
LIC/DIMMING
Rear License Plate
Assembly, DIM
Mini Fuses
Usage
DIM/ALDL
DIM, ALDL (Assembly Line
Data Link)
FLASHER
Turn Signal/Hazard Flasher
Module
MANIFOLD
Manifold Flaps 1 and 2, Air Mass
Meter, Canister Purge Valve
STRG CTLS
Steering Wheel Control Pad,
Headlamp Switch
HTR
VLV/CLTCH
Heater Valve, Clutch Switch
(Normal Closed), Clutch Switch
(Normal Open), Jumper to Start
Relay Coil for Automatic
Transmission
WASH NOZ
Driver’s and Passenger’s Side
Heated Washer Nozzles
ECM
Electronic Control Module
TCM/IPC
TCM, ECM and IPC
(Instrument Panel Cluster)
SPARE
Not Used
IGN MOD
Front Bank Ignition Modules
6-64
Mini Fuses
Usage
ELEC PRNDL
Electronic PRNDL
TCC/ET
TCC/ET Brake Switch (Extended
Travel), TCC/ET Brake Switch
(Cruise Disable)
STOP LP SW
Stop Lamp Switch
IGN SW
Ignition Switch (Power to IGN
-
3
and CRANK)
VOLT CHECK
DIM (Dash Integration Module)
ECM/TCM
TCM (Transmission Control
Module), ECM (Electronic
Control Module), IPC (Instrument
Panel Cluster), PASS
-
Key III+
Module
WPR MOD
Windshield Wiper Module
Assembly
INJ
Fuel Injectors
COMP
CLUTCH
Compressor Clutch
WPR SW
Windshield Wiper/Washer Switch
Mini Fuses
Usage
FOG LAMP
Fog Lamps
OUTLET
Center Console Accessory
Power Outlet
POST 02
Driver’s and Passenger’s Side
Oxygen Sensors, LRPDB
(Pusher Cooling Fan Relay)
I/P OUTLET
Instrument Panel Accessory
Power Outlet
CCP
Climate Control Panel
PRE 02
Driver’s and Passenger’s Side
Oxygen Sensors, Transmission
Output Speed Sensor
SPARE
Not Used
SPARE
Not Used
SPARE
Not Used
Circuit
Breakers
Usage
HDLP WASH
C/B
-
OPT
Headlamp Washer Motor (Option)
6-65
Removing the Rear Seat Cushion
NOTICE:
A fuse center is located under the rear seat
cushion. To help avoid damage to the fuse
center, be careful when removing or reinstalling
the seat cushion.
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.
3.
Slide the cushion out one of the rear doors and set
it aside.
Rear Pass
-
Through Seat
6-67
To reinstall the rear seat cushion, do the following:
1.
Position the seat cushion so that you can route
the safety belts through the proper slots in the
seat cushion.
2.
Slide the rear of the cushion up and under the
seatback so the rear
-
locating guides hook into the
wire loops on the back frame.
3.
With the seat cushion lowered, push rearward and
then press down on the seat cushion until the seat
cushion snaps into place.
4.
Push and pull on the seat cushion to make sure it is
locked into place.
5.
Check to make sure the safety belts are properly
routed and that no portion of any safety belt is
trapped under the seat cushion.
Rear Underseat Fuse Block (Driver’s Side)
The driver’s side rear fuse block is located under the
rear seat on the driver’s side of the vehicle. The rear
seat cushion must be removed to access the rear fuse
block. See “Removing the Rear Seat Cushion”
listed previously.
To access the fuse block, push in the two tabs located at
each end of the fuse block cover. Then lift the cover off.
6-68
Relays
Usage
SPARE
Not Used
SPARE
Not Used
SPARE
Not Used
PUSHER FAN
Pusher Fan (Export Only)
L POSITION
RELAY MICRO
Driver’s Side Position Lamp
R POSITION
RELAY MICRO
Passenger’s Side Position Lamp
IGN 3 RELAY
MICRO
Heated Seat Modules, Air Inlet
Motor, Shifter Assembly
STANDING
LAMP RLY
MICRO
Control for Position Lamp Relays
Relays
Usage
TRK DR REL
SOL RELAY
MICRO
Trunk Release Motor
REV LAMP
RELAY MICRO
ISRVM (Inside Rearview Mirror),
License Plate Lamp Assembly
Minifuses
Usage
L FRT HTD
SEAT MOD
Driver’s Heated Seat Module
MEM/ADAPT
SEAT
Driver’s Power Seat Switch,
Memory Seat Module
TRUNK DR
RELEASE
Trunk Release Motor
REVERSE
LAMP
ISRVM (Inside Rearview Mirror),
License Plate Lamp Assembly
SPARE
Not Used
POSITION
LAMP
Taillamp Assemblies, Front
Position Lamp Assemblies
SPARE
Not Used
SPARE
Not Used
AUDIO
Radio, OnStar Module
6-69
Minifuses
Usage
SPARE
Not Used
REAR DR MOD
Rear Door Modules
SPARE
Not Used
DRIVER DR
MOD
Driver’s Door Module
SPARE
Not Used
HDLP
LEVELING
Headlamp Leveling System
Chassis Sensors (Export Only)
EBCM
EBCM (Electronic Brake
Control Module)
CCP
CCP (Climate Control Panel)
IGN 3
Heated Seat Modules, Air Inlet
Motor, Shifter Assembly
J Cases
Usage
AMP
Audio Amplifier
PUSHER FAN
Pusher Fan (Export Only)
Circuit
Breakers
Usage
SEAT C/B
Power Seat Switches, Memory
Seat Module
Rear Underseat Fuse Block (Passenger’s Side)
The passenger’s side rear fuse block is located under the
rear seat on the passenger’s side of the vehicle. The rear
seat cushion must be removed to access the rear fuse
block. See “Removing the Rear Seat Cushion”
listed previously.
To access the fuse block, push in the two tabs located at
each end of the fuse block cover. Then lift the cover off.
6-70
Minifuses
Usage
INTERIOR
LAMP
Hush Panel Lamps, Puddle
Lamps, Overhead Courtesy
Lamp Assembly
PSGR DR MOD
Right Front Passenger
Door Module
RIM
RIM (Rear Integration Module),
Ignition Switch, Key Lock
Cylinder
REAR
FOG LAMP
Rear Fog Lamps (Export Only)
SPARE
Not Used
NAV
TV Tuner Assembly (Export
Only), VICS (Vehicle Information
Communication System) Module
Minifuses
Usage
SPARE
Not Used
SPARE
Not Used
POWER
SOUNDER
Power Sounder, Inclination Sensor
SPARE
Not Used
TRUNK LAMP
Trunk Lamp
FUEL
PUMP MTR
Fuel Pump Motor
AFTERBOIL
Afterboil Heater Pump
R FRT HTD
SEAT MOD
Passenger’s Side Heated
Seat Module
SPARE
Not Used
SIR
SDM (Sensing Diagnostic
Module)
RIM
ISRVM (Inside Rearview Mirror),
Power Sounder, RIM, Passive
Trunk Release Sensor
CANISTER
VENT
Canister Vent Solenoid
SPARE
Not Used