
Cadillac STS 2006 Fuse Box Info
Passenger compartment fuse box location:

The fuse boxes are located under the rear seat of the vehicle.
Engine compartment fuse box location:

Fuse Box Diagram | Layout
Passenger compartment fuse box (Driver’s Side):
| Fuse/Relay Name | Functions | 
| AMP | Amplifier | 
| INTERCOOLER PUMP (OPT) | Intercooler Pump (Option) | 
| THEFT/SHIFTER | Theft Sensors, Auto Shifter, Power Sounder | 
| MR-RTD MOD (OPT)  | 
Magnetic Ride Control Module (Option) | 
| REAR DR MOD | Rear Door Modules | 
| ELC SOL (OPT)  | 
Automatic Level Control, Exhaust Solenoid (Option) | 
| DRIVER DR MOD  | 
Driver Door Module | 
| TV/VICS | Infotainment (Export Only) | 
| REAR HTD SEATS  | 
Rear Heated Seats | 
| SPARE | Spare | 
| SPARE | Spare | 
| IGN3 | Front Passenger Heated Seat, Auto Shifter, Occupant Protection | 
| RR SHLF SPEAKER  | 
Rear Shelf Speaker | 
| DPM | Memory Seat, Lumbar | 
| TRUNK DR VALET  | 
Trunk Release, Valet Lockout Switch | 
| REVERSE LAMP  | 
Reverse Lamps, Rear Parking Aid, Inside Rearview Mirror | 
| AIR BAG | Airbag | 
| POSITION LAMPS (OPT)  | 
Rear Taillamps | 
| JOINT CONNECTOR  | 
Joint Connector | 
| INTERCOOLER PUMP MICRO (OPT) | Intercooler Pump (Option) | 
| ELC RELAY MINI (OPT) | Automatic Level Control Compressor (Option) | 
| L POSITION RELAY MICRO | Left Rear Taillamp, Position Lamps (Option) | 
| TRUNK DR REL RELAY MICRO | Trunk Release Motor | 
| REV LAMP RELAY MICRO | Reverse Lamps, Rear Parking Aid, Inside Rearview Mirror | 
| R POSITION RELAY MICRO | Right Rear Taillamp, Position Lamps (Option) | 
| RUN RELAY MICRO  | 
Ignition 3 | 
| ELC RELAY (OPT) | Automatic Level Control (Option) | 
| STNDBY LAMP RLY MICRO (OPT) | Rear Taillamps, Position Lamps (Option) | 
| SEATS C/B | Power Seat | 
| SPARE | Spare | 
Passenger compartment fuse box (Passenger’s Side):
| Fuse/Relay Name | Functions | 
| SPARE | Spare | 
| CANISTER VENT  | 
Canister Vent Solenoid | 
| RT TURN-RIM | Right Turn Signal | 
| SUNROOF (OPT)  | 
Sunroof Module (Option) | 
| STOP LAMPS | Stoplamps | 
| FUEL PUMP | Fuel Pump | 
| RF HTD ST/S-BAND  | 
Front Passenger Heated Seat, S-Band™ Antenna | 
| RADIO/ONSTAR | Radio/OnStar® | 
| AIR BAG | Airbags | 
| RIM | Battery to Rear Integration Module | 
| RUN/CRANK | Ignition 1, Fog Lamps, Compressor Clutch, Engine Run/Crank Relays | 
| HTD STG/CLM | Heated Steering Wheel, Column Lock Module | 
| REAR DEFOG | Rear Defogger | 
| INTERIOR LAMP  | 
Interior Lamps | 
| PSG DR MOD | Front Passenger Door Module | 
| LT TURN-RIM | Left Turn Signal | 
| REAR FOG LAMP (OPT)  | 
Rear Fog Lamps (Option) | 
| AFTERBOIL/ DIFF PUMP (OPT) | After Boil, Rear Differential Cooling Pump | 
| RIM | Ignition to Rear Integration Module | 
| JOINT CONNECTOR  | 
Joint Connector | 
| SPARE | Spare | 
| REAR DEFOG RELAY MINI  | 
Rear Defog | 
| FUEL PUMP RELAY MICRO  | 
Fuel Pump | 
| REAR FOG LAMP RLY MICRO (OPT)  | 
Rear Fog Lamps (Option) | 
| STOP LAMP RELAY MICRO  | 
Stoplamps | 
| INT LAMP RELAY MICRO  | 
Interior Lamps | 
| RUN/CRANK RELAY MICRO | Ignition 1 | 
| AFTERBOIL/ DIFF PUMP RELAY MICRO (OPT | After Boil, Rear Differential Cooling Pump (Option) | 
| WINDOW MTRS C/B  | 
Power Window Motors Circuit Breaker | 
| TRUNK DIODE | Trunk Release | 
Engine compartment fuse box:
| Fuse/Relay Name | Functions | 
| BLOWER | Blower Motor | 
| R REAR | Passenger’s Side Rear Fuse Block | 
| I/P OUTLET | Front Accessory Power Outlet | 
| CCP | Climate Control, Headlamp Leveling | 
| PRE 02/CAM | Oxygen Sensor, Camshaft Phasers | 
| ENG W/H | Engine Wiring Harness | 
| R REAR | Passenger’s Side Rear Fuse Block | 
| WPR SW | Wiper/Washer Switch | 
| BODY W/H | Body Wiring Harness | 
| FOG LAMP | Fog Lamps | 
| OUTLET | Rear Accessory Power Outlet | 
| EVEN COILS | Even Ignition Coils, Even Fuel Injectors | 
| L REAR | Driver’s Side Rear Fuse Block | 
| WPR MOD | Wiper Module | 
| POST 02 | Oxygen Sensor | 
| COMP CLTCH | Air Conditioner Compressor Clutch | 
| STARTER | Starter Solenoid | 
| ABS | Anti-Lock Brake Pump | 
| L REAR | Driver’s Side Rear Fuse Block | 
| BODY W/H | Body Wiring Harness | 
| RAIN SSR | Rain Sensor, Headlamp Washer, Tire Pressure Monitor | 
| CCP | Climate Control | 
| SMT BM-OPT | Intellibeam™ Relay (Option) | 
| EXT LIGHTS | Low Beam Relay, High Beam Relay, Park Lamp Relay | 
| VOLT CHECK | Instrument Panel Module | 
| ECM/TCM | Engine Control Module, Transmission Control Module, Easy Key Module, Instrument Panel Cluster | 
| SPARE | Spare | 
| SPARE | Spare | 
| LT PARK | Driver’s Side Park Lamp, Driver’s Side Taillamp | 
| LIC DIMMING | License Plate, Instrument Panel Dimming | 
| IPM ALDL | Instrument Panel Module Assembly Line Data Link Connector | 
| HUD | Heads-Up Display, Column Lock Module | 
| V8 ECM | V8 Engine Control Module, Evap. Solenoid | 
| ABS | Anti-Lock Brake Controller | 
| STR RLY | Starter Relay | 
| WASH NOZ/AQS  | 
Heated Washer Nozzles, Air Quality Sensor™ | 
| ODD COILS | Odd Ignition Coils, Odd Fuel Injectors | 
| TCM IPC | Transmission Control Module, Instrument Panel, Engine Control | 
| SPARE | Spare | 
| MAF | Mass Air Flow Sensor | 
| HIGH FAN | Cooling Fan - High Speed | 
| LOW FAN | Cooling Fan - Low Speed | 
| RT PARK | Passenger’s Side Park Lamp, Right Taillamp | 
| HORN | Horn | 
| LT HI BEAM | Driver’s Side Headlamp High Beam | 
| LT LOW BEAM | Driver’s Side Headlamp Low Beam | 
| RT LOW BEAM | Passenger’s Side Headlamp Low Beam | 
| RT HI BEAM | Right Headlamp High Beam | 
| HFV6 ECM | High Feature V6 Engine Control Module | 
| HDLP WASH RELAY JUMPER -OPT  | 
Headlamp Washer | 
| STARTER RELAY MINI | Starter | 
| SPARE | Spare | 
| FOG LAMP RELAY MICRO | Fog Lamps | 
| CMP CLU RELAY MICRO | Air Conditioning Compressor Clutch | 
| BLOWER RELAY MINI | Front Blower Motor | 
| POWERTRAIN RELAY MICRO | Engine Controls | 
| RUN/CRANK RELAY MICRO | Ignition 1, Starter, Washer Nozzle, Air Quality, Anti-lock Brake System, Climate Control Panel, Transmission Control Module, Instrument Panel Cluster, Mass Airflow Sensor, Engine Control Module | 
| LOW SPEED FAN RELAY MINI | Cooling Fan Low Speed | 
| ACCESSORY RELAY MINI | Ignition 3, Rain Sensor, Headlamp Washer, Windshield Wiper/Washer Module, Infotainment (Export Only) | 
| PARK LAMP RELAY MICRO | Parking Lamps, Instrument Panel Dimming, Rear License Plate Lamps | 
| HIGH BEAM RELAY MICRO | Headlamp High Beam | 
| LOW BEAM RELAY/HID MINI-OPT | Low Beam/High Intensity Discharge | 
| HIGH SPEED FAN RELAY MINI | Cooling Fan High Speed | 
| S/P FAN RELAY MINI  | 
Cooling Fan Series/Parallel | 
| HORN RELAY MICRO  | 
Horn | 
| SPARE | Spare | 
| HDLP WASH C/B - OPT | Headlamp Washer (Option) | 





