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Cadillac SRX (2004) Fuse Box Diagram

avatar Jonathan Yarden Mar 27, 2021 · 5 min. read

In this article you will find a description of fuses and relays Cadillac, with photos of block diagrams and their locations. Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.

Year of production: 2004

Underhood Fuse Block

The underhood fuse block is located in the engine compartment on the passenger’s side of the vehicle.

Cadillac SRX - fuse box - engine compartment

Relays Usage
LO SPEED FAN RELAY MINI Low Speed Fan Motor
HI SPEED FAN RELAY MINI High Speed Fan Motor
ACCESSORY RELAY MINI Accessory Power Outlets
S/P FAN RELAY MINI Series/Parallel Fan
PARK LAMP RELAY MICRO Parking Lamps
HORN RELAY MICRO Horn
HI BEAM RELAY MICRO High-Beam Headlamps
DRL RELAY MICRO-OPT Daytime Running Lamps
LO BEAM RELAY/HID MINI-OPT Low-Beam HID Headlamps (Option)
HDLP WASH RELAY MINI-OPT Headlamp Washer Motor (Option)
CIGAR RELAY MINI Cigarette Lighter
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
I/P W/H Wiring Harness Connection
ENG W/H Engine Wiring Harness Connection
FORWARD LAMP Forward Lamp Wiring Harness Connection

 

J Case 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
LOW FAN Low Cooling Fan Motor
BLOWER PWM Fan Motor Assembly
STARTER Starter Solenoid
EBCM Electronic Brake Control Module

 

Fuses Usage
RT PARK Passenger’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 BEAM Passenger’s Side Low-Beam Headlamp
RT HI BEAM Passenger’s Side High-Beam Headlamp
HFV6 ECM High Feature V6 ECM (Electronic Control Module)
REAR WPR Rear Wiper Motor
THEFT ECM, TCM (Transmission Control Module), PASS-KeyŽ III+ Module
LT PARK Driver’s Side Taillamp Assembly, Front Sidemarker and Front Parking Lamp Assembly
LIC/DIMMING Rear License Plate Assembly, DIM (Dash Integration Module)
DIM/ALDL DIM, ALDL (Assembly Line Data Link)
FLASHER Turn Signal/Hazard Flasher Module
V8 ECM V8 ECM, Canister Purge
STRG CTLS Steering Wheel Control Pad, Headlamp Switch
STARTER RLY Jumper to Starter Relay
WASH NOZ Driver’s and Passenger’s Side Heated Washer Nozzles
ODD COILS Odd Ignition Coils, Fuel Injectors, Odd Injection Coils
TCM/IPC TCM, ECM and IPC (Instrument Panel Cluster)
SPARE Not Used
ABS Anti-Lock Brake System
VICS Vehicle Information and Communication System
SPARE Not Used
SPARE Not Used
IGN SW Ignition Switch (Power to IGN-3 and CRANK)
VOLT CHECK DIM
ECM/TCM ECM, TCM, IPC, PASS-KeyŽ III+ Module
WPR MOD Windshield Wiper Module Assembly
POSTO2 Post O2 Sensors
COMP CLUTCH Compressor Clutch
WPR SW Windshield Wiper/Washer Switch
FOG LAMP Fog Lamps
OUTLET Center Console Accessory Power Outlet
EVEN COILS Even Injection Coils
I/P OUTLET Instrument Panel Accessory Power Outlet
CCP Climate Control
PREO2/CAM Driver’s and Passenger’s Side Oxygen Sensors, CAM Phaser
SPARE Not Used
SPARE Not Used
SPARE Not Used

 

Circuit Breakers Usage
HDLP WASH C/B-OPT Headlamp Washer Motor (Optional)

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 carpet must be lifted up to access the rear fuse block.
To access the fuse block, push in the two tabs located at each end of the fuse block cover. Then lift the cover off.

Cadillac SRX - fuse box - rear compartment (driver's side)

Relays Usage
BASS RELAY MINI Brake Apply Sensor
SPARE Not Used
ELC RELAY MINI ELC (Electronic Level Control) Compressor Motor
SPARE Not Used
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
SPARE Not Used
REV LAMP RELAY MICRO ISRVM (Inside Rearview Mirror), License Plate Lamp Assembly

 

Fuses Usage
L FRT HTD SEAT MOD Driver’s Heated Seat Module
MEM/ADAPT SEAT Driver’s Power Seat Switch, Memory Seat Module
THEFT Universal Garage Door Opener, Intrusion Sensor, Diversity Antenna Module
REVERSE LAMP ISRVM (Inside Rearview Mirror), License Plate Lamp Assembly
SPARE Not Used
POSITION LAMP Taillamp Assemblies, Front Position Lamp Assemblies
SPARE Not Used
ELC COMP ELC Compressor, ELC Solenoid
AUDIO Radio, OnStar Module
FFS SW Flip Fold Seat Switch
REAR DR MOD Rear Door Modules
FFSM Flip Fold Seat Module
DRIVER DR MOD Driver’s Door Module
BASS Taillamps, Center High-Mounted Stop Lamp, Flasher Module, ABS Module, Trailer Lamps
HDLP LEVELING Headlamp Leveling System Chassis Sensors (Export Only)
SPARE Not Used
CCP CCP (Climate Control Panel)
IGN 3 Heated Seat Modules, Air Inlet Motor, Shifter Assembly

 

J Case Usage
AMP Audio Amplifier
ELC ELC Compressor

 

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 carpet must be lifted up to access the rear fuse block.
To access the fuse block, push in the two tabs located at each end of the fuse block cover. Then lift the cover off.

Cadillac SRX - fuse box - rear compartment (passenger's side)

Relays Usage
PRIMARY QUARTER A/C RELAY MINI Rear A/C
SPARE Not Used
REAR DEFOG RELAY MINI Rear Window Defogger
SPARE Not Used
AFTERBOIL RELAY MICRO Afterboil Pump
INT LAMP RELAY MICRO Hush Panel Lamps, Puddle Lamps, Overhead Courtesy Lamp Assembly
IGN 1 RELAY MICRO Ignition Switch
SPARE Not Used
REAR FOG LAMP RLY MICRO Rear Fog Lamps (Export Only)
FUEL PUMP MOTOR RLY MICRO Fuel Pump Motor

 

Fuses Usage
INTERIOR LAMP Hush Panel Lamps, Puddle Lamps, Overhead Courtesy Lamp Assembly
RT FRT DR MOD Passenger’s Door Module
RIM RIM (Rear Integration Module), Ignition Switch, Key Lock Cylinder
REAR FOG LAMP Rear Fog Lamps (Export Only)
SUSPNTN Suspension Module
VICS TV Tuner Assembly, VICS (Vehicle Information Communication System) Module
SPARE Not Used
POWER SOUNDER Power Sounder, Inclination Sensor
AFTERBOIL Afterboil Heater Pump
CANISTER VENT Canister Vent Solenoid
FUEL PUMP MTR Fuel Pump Motor
REAR HVAC Rear Climate Control System
R FRT HTD SEAT MOD Passenger’s Side Heated Seat Module
REAR HATCH Rear Hatch Latch
AIR BAG SDM (Sensing Diagnostic Module)
IGN 1 Shifter, Power Sounder, Rear Parking Aid, Rearview Mirror, RIM
SPARE Not Used
SPARE Not Used

 

J Case Usage
SUNROOF MOD Power Sunroof Module
REAR DEFOG Rear Window Defogger Element

 

Circuit Breakers Usage
DR MOD PWR C/B Door Modules

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

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