2004 CADILLAC CTS heater

Fuses Usage
RT PARKPassenger’s Side Taillamp
Assembly, Front Sidemarker and
Front Parking Lamp Assembly
HORN Dual Horn Assembly
LT HI BEAM Driver’s Side High-Beam Headlamp
LT LOW BEAM Driver’s Side Low-Beam Headlamp
RT LOW BEAMPassenger’s Side Low-Beam
Headlamp
RT HI BEAMPassenger’s Side High-Beam
Headlamp
SPARE Not Used
SPARE Not Used
THEFTECM (Electronic Control Module),
TCM (Transmission Control Module),
PASS-Key
®III+ Module
LT PARKDriver’s Side Taillamp Assembly,
Front Sidemarker and Front Parking
Lamp Assembly
DIMMINGRear License Plate Assembly,
Dash Integrated Module (DIM)
DIM/ALDLDIM, ALDL (Assembly Line
Data Link)
Fuses Usage
FLASHER Turn Signal/Hazard Flasher Module
ECM Electronic Control Module
STRG CTLSSteering Wheel Control Pad,
Headlamp Switch
HTR VLV/
CLTCHHeater Valve, Clutch Switch
(Normal Closed), Clutch Switch
(Normal Open), Jumper to Start
Relay Coil for Automatic
Transmission
WASH NOZDriver’s and Passenger’s Side
Heated Washer Nozzles
PRE O2/CAMDriver’s & Passenger’s Side Oxygen
Sensors, Transmission Output
Speed Sensor, CAM Phaser
TCM/IPCTCM, ECM and IPC
(Instrument Panel Cluster)
SPARE Not Used
IGN MOD/MAF Front Bank Ignition Modules
ELEC PRNDL Electronic PRNDL
SPARE Not Used
SPARE Not Used
5-103

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.
Relays Usage
RAP RELAY
MINIRetained Accessory Power
SPARE Not Used
REAR DEFOG
RELAY MINIRear Window Defogger
SPARE Not Used
AFTER BOIL
MICROAfterboil Heater Pump
INT LAMP
RELAY MICROHush Panel Lamps, Puddle Lamps,
Overhead Courtesy Lamp Assembly
IGN 1 RELAY
MICROIgnition Switch
REAR FOG
LAMP
RLY MICRORear Fog Lamps (Export Only)
FUEL PUMP
MOTOR
RLY MICROFuel Pump Motor
5-109

Fuses Usage
INTERIOR
LAMPHush Panel Lamps, Puddle Lamps,
Overhead Courtesy Lamp Assembly
PSGR DR MOD Right Front Passenger Door Module
RIM/IGN SWRIM (Rear Integration Module),
Ignition Switch, Key Lock Cylinder
REAR
FOG LAMPRear Fog Lamps (Export Only)
SPARE Not Used
TV/VICSTV Tuner Assembly (Export Only),
VICS (Vehicle Information
Communication System) Module
SPARE Not Used
TRUNK DIODE Trunk Lamp
POWER
SOUNDERPower Sounder, Inclination Sensor
SPARE Not Used
CANISTER
VENTCanister Vent Solenoid
FUEL
PUMP MTRFuel Pump MotorFuses Usage
AFTERBOIL Afterboil Heater Pump
R FRT HTD
SEAT MODPassenger’s Side Heated
Seat Module
SPARE Not Used
AIR BAG SDM (Sensing Diagnostic Module)
RIMISRVM (Inside Rearview Mirror),
Power Sounder, RIM, Passive
Trunk Release Sensor
ABS Anti-Lock Brake System
SPARE Not Used
J Cases Usage
REAR DEFOG Rear Window Defogger Element
SUNROOF MOD Power Sunroof Module
Circuit
BreakersUsage
DR MOD
PWR C/BDoor Modules
5-110

Cleaning Tires................................................5-96
Cleaning Vinyl................................................5-93
Cleaning Windshield and Wiper Blades..............5-96
Cleaning Wood Panels....................................5-94
Climate Control System
Air Filter, Passenger Compartment.................3-35
Dual..........................................................3-29
Outlet Adjustment........................................3-34
Steering Wheel Controls...............................3-36
Clutch, Hydraulic.............................................5-28
Compact Spare Tire........................................5-91
Compass Calibration.......................................2-42
Compass Operation.........................................2-42
Compass Variance..........................................2-42
Competitive Driving (CTS-V) .............................3-75
Competitive Driving Mode................................4-10
Congurable Radio Display Keys.....................3-123
Control of a Vehicle.......................................... 4-5
Convenience Net............................................2-52
Coolant
Engine Temperature Gage............................3-46
Engine Temperature Warning Light.................3-45
Heater, Engine............................................2-25
Hot Temperature Warning Message................3-57
Surge Tank Pressure Cap.............................5-31
Cooling System..............................................5-34
Cruise Control................................................3-23
Cruise Control (CTS).......................................3-14Cruise Control (CTS-V) ....................................3-17
Cruise Control Light........................................3-52
CTS-VEngine Data.......................................5-112
Cupholder(s)..................................................2-50
Current and Past Model Order Forms................7-12
Customer Assistance Information
Courtesy Transportation.................................. 7-7
Customer Assistance for Text
Telephone (TTY) Users............................... 7-4
Customer Assistance Offices........................... 7-4
Customer Satisfaction Procedure..................... 7-2
GM Mobility Program for Persons
with Disabilities.......................................... 7-5
Reporting Safety Defects to
General Motors........................................7-11
Reporting Safety Defects to the
Canadian Government..............................7-11
Reporting Safety Defects to the
United States Government.........................7-10
Roadside Service.......................................... 7-6
Service Publications Ordering Information........7-11
D
Daytime Running Lamps..................................3-24
Defensive Driving............................................. 4-2
Defogging and Defrosting.................................3-32
4

Engine
Air Cleaner/Filter.........................................5-24
Battery.......................................................5-45
Check and Service Engine Soon Light............3-47
Check Oil Pressure Message........................3-58
Coolant......................................................5-29
Coolant Heater............................................2-25
Coolant Temperature Gage...........................3-46
Coolant Temperature Warning Light................3-45
Engine Compartment Overview......................5-12
Exhaust.....................................................2-39
Oil .............................................................5-18
Oil Temperature Warning Message.................3-58
Overheating................................................5-31
Starting......................................................2-24
Engine Coolant Hot – AC (Air Conditioning) Off......3-76
Engine Coolant Hot – Idle Engine.....................3-76
Engine Cooling When Trailer Towing..................4-45
Engine Oil Additives........................................5-21
Engine Overheated – Stop Engine....................3-77
Engine Power Reduced...................................3-77
Engine Specications.....................................5-112
Engine Speed Limiter......................................3-41
Entering the Personalization Menu.....................3-89
Entry Lighting.................................................3-27
Erasing HomeLink
®Buttons..............................2-50
Event Data Recorders (EDR)............................. 7-9Exiting the Personalization Menu.....................3-107
Express-Down Window....................................2-15
Express-Up Window........................................2-15
Extender, Safety Belt.......................................1-28
Exterior Lamps...............................................3-24
Exterior Lighting Battery Saver..........................3-26
F
Filter
Engine Air Cleaner......................................5-24
Finding a Station...........................................3-110
Finish Care....................................................5-95
Finish Damage...............................................5-97
Five-Speed (CTS)...........................................2-33
Flash-To-Pass Feature.....................................3-11
Flat Tire........................................................5-79
Flat Tire, Changing.........................................5-81
Fluid
Automatic Transmission................................5-25
Manual Transmission....................................5-27
Power Steering...........................................5-40
Windshield Washer......................................5-41
FM Stereo....................................................3-125
Fog Lamp Light..............................................3-51
Fog Lamps....................................................3-13
6

Folding Rear Seat............................................ 1-7
Following Distance..........................................4-43
Fuel............................................................... 5-5
Additives...................................................... 5-6
California Fuel.............................................. 5-6
Filling a Portable Fuel Container....................5-10
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-52
Gasoline Octane........................................... 5-5
Gasoline Specications.................................. 5-5
Fuel Level Low...............................................3-77
Fuses
Fuses and Circuit Breakers.........................5-100
Windshield Wiper.......................................5-100
G
Gage
Engine Coolant Temperature.........................3-46
Fuel..........................................................3-52
Speedometer..............................................3-40
Tachometer.................................................3-41
Garage Door Opener.......................................2-46
Garment Hooks..............................................2-51Gasoline
Octane........................................................ 5-5
Specications............................................... 5-5
Gate Operator and Canadian Programming........2-49
Glove Box.....................................................2-50
GM Mobility Program for Persons
with Disabilities............................................. 7-5
H
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-6
Headlamp High/Low-Beam Changer...................3-11
Headlamp Washers.........................................3-23
Headlamps....................................3-12, 3-24, 5-52
Bulb Replacement.......................................5-52
Front Turn Signal and Fog Lamps..................5-53
Halogen Bulbs............................................5-52
High Intensity Discharge (HID) Lighting...........5-52
Headlamps Suggested.....................................3-78
Heated Seats................................................... 1-3
Heater...........................................................3-29
High Speed Operation (CTS-V) .........................5-69
Highbeam On Light.........................................3-52
Highway Hypnosis...........................................4-25
7

Tire Sidewall Labeling......................................5-60
Tire Size.......................................................5-62
Tire Terminology and Denitions........................5-63
Tires.............................................................5-58
Buying New Tires........................................5-74
Chains.......................................................5-78
Changing a Flat Tire....................................5-81
Compact Spare Tire.....................................5-91
If a Tire Goes Flat.......................................5-79
Ination - Tire Pressure................................5-67
Inspection and Rotation................................5-72
Pressure Monitor System..............................5-70
Run-Flat.....................................................5-66
Uniform Tire Quality Grading.........................5-75
Wheel Alignment and Tire Balance.................5-77
Wheel Replacement.....................................5-77
When It Is Time for New Tires......................5-73
To Use the Engine Coolant Heater....................2-26
Top Speed – Fuel Cut Off................................3-86
Top Strap......................................................1-39
Top Strap Anchor Location...............................1-40
Torque Lock (Automatic Transmission)...............2-38
Total Weight on Your Vehicle’s Tires..................4-41
Towing
Recreational Vehicle.....................................4-33
Towing a Trailer..........................................4-39
Your Vehicle...............................................4-32Traction
Control System (TCS).............................4-8, 4-9
Control System Warning Light.......................3-45
Limited-Slip Rear Axle..................................4-11
Stabilitrak
®System......................................4-11
Traction Engaged............................................3-87
Trailer Brakes.................................................4-42
Trans (Transmission) Hot – Idle Engine..............3-87
Transmission
Fluid, Automatic...........................................5-25
Fluid Hot Message......................................3-57
Fluid, Manual..............................................5-27
Transmission Operation, Automatic....................2-26
Transmission Operation, Manual........................2-33
Transmission, Transaxle, Transfer Case Unit
Repair Manual............................................7-11
Transportation Options...................................... 7-8
Trip Odometers..............................................3-40
Trunk............................................................2-12
Trunk Lock Release........................................2-12
Trunk Open...................................................3-87
Turn and Lane-Change Signals.........................3-10
Turn Signal On...............................................3-88
Turn Signal/Multifunction Lever..........................3-10
Turn Signals When Towing a Trailer..................4-44
16