Cadillac STS mk2 (Second Generation; 2007) – fuse box diagram

Cadillac STS mk2 (Second Generation; 2007) – fuse box diagram

Year of production: 2007

Underhood Fuse Block

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

Cadillac STS mk2 - fuse box - engine compartment
Cadillac STS mk2 – fuse box – engine compartment
Fuses Usage
BLOWER Blower Motor
R REAR Passenger’s Side Rear Fuse Block
I/P OUTLET Front Auxiliary Outlet
CCP Climate Control, Headlamp Leveling
PRE 02/CAM Oxygen Sensor, Variable Intake (V6), Purge Solenoid (V6), Camshaft Phasers (V6)
R REAR Passenger’s Side Rear Fuse Block
WPR SW Wiper/Washer Switch
FOG LAMP Fog Lamps
OUTLET Rear Accessory Power Outlet
EVEN COILS Even Ignition Coils, Even Fuel Injectors
L REAR Left 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
RAIN SSR Rain Sensor, Headlamp Washer, Tire Pressure Monitor
CCP Climate Control
SMT BM-OPT IntelliBeam™ Relay (If Equipped)
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, Steering Column Switch
V8 ECM V8 Engine Control Module (ECM), Evap. Solenoid, Vacuum Bypass
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 (TCM), Instrument Panel, Engine Control
SPARE Spare
MAF Mass Air Flow Sensor (V6)
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 (ECM), Mass Air Flow Sensor (MAF) (V8)
HDLP WASH RELAY JUMPER -OPT Headlamp Washer

 

 

Relays Usage
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
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

 

Circuit brakers Usage
HDLP WASH C/B -OPT Headlamp Washer (Option)

 

Harness Connection Usage
ENG W/H Engine Harness Connection
BODY W/H Body Harness Connection
BODY W/H Body Harness Connection

Rear Underseat Fuse Block

There is a fuse block located under the rear seat on the driver’s side and passenger’s side of the vehicle. The rear seat cushion must be removed to access the fuse blocks.

Driver’s Side

Cadillac STS mk2 - fuse box - rear compartment (driver's side)
Cadillac STS mk2 – fuse box – rear compartment (driver’s side)
Fuses Usage
AMP Amplifier
INTERCOOLER PUMP (OPT) Intercooler Pump (Option)
THEFT/SHIFTER Theft Sensors, Auto Shifter
MR-RTD MOD (OPT) MR-CVRTD Suspension Module (Option)
REAR DR MOD Rear Door Modules
ELC SOL (OPT) Automatic Level Control, Exhaust Solenoid (Option)
DRIVER DR MOD Driver Door Module, Front Door SubWoofers (Option)
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 (Option)
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
ELC RELAY (OPT) Automatic Level Control (Option)

 

Relays Usage
INTERCOOLER PUMP MICRO (OPT) Intercooler Pump (Option)
ELC RELAY (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
STNDBY LAMP RLY (OPT) Rear Taillamps, Position Lamps (Option)

 

Circuit Breakers Usage
SEATS C/B Power Seat

 

Diode Usage
SPARE Spare

 

Joint Connector Usage
JOINT CONNECTOR Splice Pack (Green)

Passenger’s Side

Cadillac STS mk2 - fuse box - rear compartment (passenger's side)
Cadillac STS mk2 – fuse box – rear compartment (passenger’s side)
Fuses Usage
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

 

Relays Usage
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 RELAY MICRO (OPT) After Boil Pump (Option)

 

Circuit Breakers Usage
WINDOW MTRS C/B Power Window Motors Circuit Breaker

 

Diodes Usage
TRUNK DIODE Trunk Release

 

Joint Connector Usage
JOINT CONNECTOR Splice Pack (Blue)

 

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