Cadillac STS (2005-2011) fuses and relays

Fuse box diagram (location and assignment of electrical fuses and relays) for Cadillac STS (2005, 2006, 2007, 2008, 2009, 2010, 2011).

Fuse box diagram: Cadillac STS (2005-2011)

2005, 2006, 2007
2008, 2009, 2010, 2011

Fuse box location

Fuse Box in the engine compartment

The location of the fuses in the engine compartment: Cadillac STS

Passenger compartment fuse boxes

Two fuse boxes are located under the rear seatsThe location of the fuses in the passenger compartment: Cadillac STS

2005, 2006, 2007

Fuse box diagram (Engine compartment)

Under-hood fuse box diagram: Cadillac STS (2005, 2006, 2007)

Assignment of the fuses and relays in the Engine compartment fuse box (2005-2007)
NameDescription
Fuses
BLOWERBlower Motor
R REARPassenger’s Side Rear Fuse Block
I/P OUTLETFront Auxiliary Outlet
CCPClimate Control, Headlamp Leveling
PRE O2/CAM2005-2006: Oxygen Sensor, CAM Phasers
2007: Oxygen Sensor, Variable Intake (V6), Purge Solenoid (V6), Camshaft Phasers (V6)
R REARPassenger’s Side Rear Fuse Block
WPR SWWiper/Washer Switch
FOG LAMPFog Lamps
OUTLETRear Auxiliary Power Outlet
EVEN COILSEven Ignition Coils, Even Fuel Injectors
L REARLeft Rear Fuse Block
WPR MODWiper Module
POST O2Oxygen Sensor
COMP CLTCHAir Conditioner Compressor Clutch
STARTERStarter Solenoid
ABSAnti-Lock Brake Pump
L REARDriver’s Side Rear Fuse Block
RAIN SSRRain Sensor, Headlamp Washer, Tire Pressure Monitor
CCPClimate Control
SMT BM-OPTSmart Beam Relay (Option)
EXT LIGHTSLow Beam Relay, High Beam Relay, Park Lamp Relay
VOLT CHECKInstrument Panel Module
ECM/TCMEngine Control Module, Transmission Control Module, Easy Key Module, Instrument Panel Cluster
SPARESpare
LT PARKLeft Park Lamp, Left Taillamp
LIC DIMMINGLicense Plate, Instrument Panel Dimming
IPM ALDLInstrument Panel Module Assembly Line Data Link Connector
HUD2005-2006: Heads-Up Display, Column Lock Module
2007: Heads-Up Display, Column Lock Module, Steering Column Switch
V8 ECM2005-2006: V8 ECM, Evap Solenoid
2007: V8 Engine Control Module (ECM), Evap. Solenoid, Vacuum Bypass
ABSAnti-Lock Brake Controller
STR RLYStarter Relay
WASH NOZ/AQSHeated Washer Nozzles, Air Quality Sensor™
ODD COILSOdd Ignition Coils, Odd Fuel Injectors
TCM IPC2005-2006: Transmission, Instrument Panel, Engine Control
2007: Transmission Control Module (TCM), Instrument Panel, Engine Control
MAFMass Air Flow Sensor
HIGH FANCooling Fan – High Speed
LOW FANCooling Fan – Low Speed
RT PARKRight Park Lamp, Right Taillamp
HORNHorn
LT HI BEAMLeft Headlamp High Beam
LT LOW BEAMLeft Headlamp Low Beam
RT LOW BEAMRight Headlamp Low Beam
RT HI BEAMRight Headlamp High Beam
HFV6 ECM2005-2006: High Feature V6 Engine Control Module
2007: High Feature V6 Engine Control Module (ECM), Mass Air Flow Sensor (MAF) (V8)
HDLP WASH RELAY JUMPER -OPTHeadlamp Washer
Circuit brakers
HDLP WASH C/B -OPTHeadlamp Washer (Option)
Relays
STARTER RELAY MINIStarter
SPARESpare
FOG LAMP RELAY MICROFog Lamps
CMP CLU RELAY MICROA/C Compressor Clutch
BLOWER RELAY MINIFront Blower Motor
POWERTRAIN RELAY MICROEngine Controls
RUN/CRANK RELAY MICRO2005-2006: Ignition 1
2007: 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 MINICooling Fan Low Speed
ACCESSORY RELAY MINI2006-2006: Ignition 3
2007: Ignition 3, Rain Sensor, Headlamp Washer, Windshield Wiper/Washer Module
PARK LAMP RELAY MICRO2005-2006: Parking Lamps
2007: Parking Lamps, Instrument Panel Dimming, Rear License Plate Lamps
HIGH BEAM RELAY MICROHeadlamp High-Beam
LOW BEAM RELAY/HID MINI-OPTLow-Beam/High Intensity Discharge
HIGH SPEED FAN RELAY MINICooling Fan High Speed
S/P FAN RELAY MINICooling Fan Series/Parallel
HORN RELAY MICROHorn
Harness Connection
ENG W/HEngine Harness Connection
BODY W/HBody Harness Connection
BODY W/HBody Harness Connection

Fuse box diagram (Rear Underseat Fuse Box (Driver’s Side))

Rear Underseat Fuse Box (Driver’s Side): Cadillac STS (2005, 2006, 2007)

Assignment of the fuses and relays in the Rear Underseat Fuse Box (Driver’s Side) (2005-2007)
NameDescription
Fuses
AMPAmplifier
INTERCOOLER PUMPIntercooler Pump (Option)
THEFT/SHIFTERTheft Sensors, Auto Shifter
MR-RTD MOD MR-CVRTD Suspension Module (Option)
REAR DR MODRear Door Modules
ELC SOL 2005-2006: Exhaust Solenoid
2007: Automatic Level Control, Exhaust Solenoid (Option)
DRIVER DR MOD2005-2006: Driver Door Module
2007: Driver Door Module, Front Door SubWoofers (Option)
TV/VICSInfotainment (Export Only)
REAR HTD SEATSRear Heated Seats
SPARESpare
SPARESpare
IGN3Front Passenger Heated Seat, Auto Shifter, Occupant Protection
RR SHLF SPEAKERRear Shelf Speaker (Option)
DPMMemory Seat, Lumbar
TRUNK DR VALETTrunk Release, Valet Lockout Switch
REVERSE LAMPReverse Lamps, Rear Parking Aid, Inside Rearview Mirror
AIR BAGAirbag
POSITION LAMPSRear Taillamps
ELC RELAY Automatic Level Control (Option)
Relays
INTERCOOLER PUMP MICRO Intercooler Pump (Option)
ELC RELAY Automatic Level Control Compressor (Option)
L POSITION RELAY MICROLeft Rear Taillamp, Position Lamps (Option)
TRUNK DR REL RELAY MICROTrunk Release Motor
REV LAMP RELAY MICRO2005-2006: Reverse Lamps, Rear Parking Aid
2007: Reverse Lamps, Rear Parking Aid, Inside Rearview Mirror
R POSITION RELAY MICRORight Rear Taillamp, Position Lamps (Option)
RUN RELAY MICROIgnition 3
STNDBY LAMP RLYRear Taillamps, Position Lamps (Option)
Circuit Breakers
SEATS C/BPower Seat
Diode
SPARESpare
Joint Connector
JOINT CONNECTORSplice Pack (Green)

Fuse box diagram (Rear Underseat Fuse Box (Passenger’s Side))

Rear Underseat Fuse Box (Passenger’s Side): Cadillac STS (2005, 2006, 2007)

Assignment of the fuses and relays in the Rear Underseat Fuse Box (Passenger’s Side) (2005-2007)
NameDescription
Fuses
SPARESpare
CANISTER VENTCanister Vent Solenoid
RT TURN-RIMRight Turn Signal
SUNROOFSunroof Module (Option)
STOP LAMPSStoplamps
FUEL PUMPFuel Pump
RF HTD ST/S-BANDFront Passenger Heated Seat, S-Band Antenna
RADIO/ONSTARRadio/OnStar
AIR BAGAirbags
RIMBattery to Rear Integration Module
RUN/CRANK2005-2006: Ignition 1
2007: Ignition 1, Fog Lamps, Compressor Clutch, Engine Run/Crank Relays
HTD STG/CLMHeated Steering Wheel, Column Lock Module
REAR DEFOGRear Defogger
INTERIOR LAMPInterior Lamps
PSG DR MODFront Passenger Door Module
LT TURN-RIMLeft Turn Signal
REAR FOG LAMP (OPT)Rear Fog Lamps (Option)
AFTERBOIL/DIFF PUMP2005-2006: After Boil Pump
2007: After Boil, Rear Differential Cooling Pump
RIMIgnition to Rear Integration Module
Relays
SPARESpare
REAR DEFOG RELAY MINIRear Defog
FUEL PUMP RELAY MICROFuel Pump
REAR FOG LAMP RLY MICRO (OPT)Rear Fog Lamps (Option)
STOP LAMP RELAY MICROStoplamps
INT LAMP RELAY MICROInterior Lamps
RUN/CRANK RELAY MICROIgnition 1
AFTERBOIL RELAY MICROAfter Boil Pump (Option)
Circuit Breakers
WINDOW MTRS C/BPower Window Motors Circuit Breaker
Diodes
TRUNK DIODETrunk Release
Joint Connector
JOINT CONNECTORSplice Pack (Blue)

2008, 2009, 2010, 2011

Fuse box diagram (Engine compartment)

Under-hood fuse box diagram: Cadillac STS (2008, 2009, 2010, 2011)

Assignment of the fuses and relays in the Engine compartment fuse box (2008-2011)
NameDescription
J-Case Fuses
ABS MTRABS Module- ABS Module-StabiliTrak®
AFSActive Front Steering
BLWRBlower Motor
FAN 1Cooling Fan-Low Speed
FAN 2Cooling Fan-High Speed
LPDB 1Driver Side Rear Fuse Block
LPDB 2Driver Side Rear Fuse Block
RPDB 1Passenger Side Rear Fuse Block
RPDB 2Passenger Side Rear Fuse Block
SPARESpare
Mini Fuses
A/C CLTCHAir Conditioning Compressor Clutch
ABSABS Module-StabiliTrak®
ABS IGNAntilock Brake Controller
AUX OUTLETRear Accessory Power Outlet
BRK VAC PUMPBrake Vacuum Pump
CCPClimate Control Panel
CCP/RLY COILSClimate Control Panel, Headlamp Level Control, Active Cruise Control, Relay Coils, Starter, Front Blower
ECM 1Engine Control Module (ECM)
ECM/TCM BATTECM, Transmission Control Module (TCM)
ECM/TCM IGNECM, TCM, Instrument Panel Cluster
EKM/I/P MDLEasy Key Module (EKM), Instrument Panel Module (I/P MDL)
EVEN COILSEven Ignition Coils, Even Fuel Injectors
FOG LAMPFront Fog Lamps
FRT PWR OUTLETFront Accessory Power Outlet
FUEL COOLFuel Cooling
HORNHorn
HTD WASH/AQSHeated Headlamp Washer, Air Quality Sensor
HUDHeads-Up Display, Steering Column Switch
I/BEAMIntelliBeam Relay
I/P MDL/ALDLInstrument Panel Module, Assembly Line Data Link Connector
LIC DIMLicense Plate, Instrument Panel Dimming
LT HI BEAMDriver Side High Beam Headlamp
LT LO BEAMDriver Side Low Beam Headlamp
LT PRKDriver Side Park Lamp/Driver Side Taillamp
ODD COILSOdd Ignition Coils, Odd Fuel Injectors
POST O2 SNSRPost Oxygen Sensor
PRE O2 SNSRPre Oxygen Sensor, CAM Sensors
RAIN SNSR/TPMRain Sensor, Relay Coil: Headlamp Wash
RT HI BEAMPassenger Side High Beam Headlamp
RT LO BEAMPassenger Side Low Beam Headlamp
RT PRKPassenger Side Park Lamp, Passenger Side Taillamp
SPARESpare
V/CHKInstrument Panel Module-Voltage Check
WPRWipe/Wash Module Assembly
WPR SW/VICSRain Sensor, Wiper Switch
Relays
A/C CMPRSR CLTCHAir Conditioning Compressor Clutch
ACCYAccessory Rain Sensor, Headlamp Washer Relay Coil, Windshield Wiper/Washer Module
BRK VAC PUMPBrake Vacuum Pump
FAN S/PCooling Fan Series/Parallel
FOG LAMPFog Lamps
FRT BLWRFront Blower Motor
FUEL COOLFuel Cooling Pump
HI BEAMHigh Beam Headlamp
HI FAN SPDCooling Fan High Speed
HORNHorn
LO FAN SPDCooling Fan Low Speed
LOW BEAM W/O HID/HIDLow Beam Headlamp, High Intensity Discharge (HID)
PRK LAMPParking Lamps, Instrument Panel Dimming, Rear License Plate Lamps
PWR/TRNEngine Controls
RUN CRNKHeated Washer Nozzle, Air Quality, Antilock Brake System, Climate Control Panel, TCM, ECM, Instrument Control Panel, Instrument Control Panel Cluster
SPARESpare
STRTRStarter
WPR HIWindshield Wiper High Speed
Circuit Breakers
HDLP WASHHeadlamp Washer Motor (Circuit Breaker)

Fuse box diagram (Rear Underseat Fuse Box (Driver’s Side))

Rear Underseat Fuse Box (Driver’s Side): Cadillac STS (2008, 2009, 2010, 2011)

Assignment of the fuses and relays in the Rear Underseat Fuse Box (Driver’s Side) (2008-2011)
NameDescription
Fuses
AMPAmplifier
INCLR PUMPInner Cooler Pump (Option)
THEFT/SHFTTheft Sensors, Auto Shifter, Power Sounder
MRTD MDLMagnetic Ride Control Module (Option)
REAR DR MDLRear Door Modules
ELC EXHElectronic Level Control, Exhaust Solenoid (Option)
DDMDriver Door Module, Front Door SubWoofers (Option)
TV/VICS/SCMInfotainment (Export Only), Supervisory Control Module (Option)
REAR HTD/SEATSRear Heated Seats
SPARESpare
IGN3Front Passenger Heated Seat, Auto Shifter, Occupant Protection, Electronic Tension Reducer for Seatbelt
REAR SHLF SPKRRear Shelf Speaker (Option)
MSMMemory Seat Module Lumbar
TRUNK RELSE SWTrunk Release, Valet Lockout Switch
BCK/UP LAMPReverse Lamps, Rear Parking Aid, Inside Rearview Mirrors
AIR BAG/BATTAirbag
POS LAMPSRear Taillamps
ELC CMPRSRAutomatic Level Control (Option)
Relays
INCLR PUMPInner Cooler Pump (Option)
ELC CMPRSRElectronic Level Control, Compressor (Option)
LT POSLeft Rear Taillamp, Position Lamps (Option)
RT POSRight Rear Taillamp, Position Lamps (Option)
RUNIgnition 3
STDBY LAMPRear Taillamps, Position Lamps (Option)
TRUNK RELSETrunk Release Motor
BCK/UP LAMPReverse Lamps, Rear Parking Aid, Inside Rearview Mirror
Circuit Breakers
PWR SEATSPower Seats
Diodes
SPARESpare
Joint Connector
J/CSplice Pack (Green)

Fuse box diagram (Rear Underseat Fuse Box (Passenger’s Side))

Rear Underseat Fuse Box (Passenger’s Side): Cadillac STS (2008, 2009, 2010, 2011)

Assignment of the fuses and relays in the Rear Underseat Fuse Box (Passenger’s Side) (2008-2011)
NameDescription
Fuses
AIRBAG/IGNSensing and Diagnostic Monitor, Automatic Occupant Sensor, Passenger Supplemental Inflatable Restraint
CNSTR/VENTCanister Vent Solenoid
DIFF PUMPRear Differential Pump
FRT PDMFront Passenger Door Module, Right Power Subwoofer
FUEL PUMPFuel Pump
HTD STRHeated Steering Wheel
RF HTD/SEAT/XMFront Passenger Heated Seat, S-Band™ Antenna
RDO/ONSTARRadio, OnStar®
INT LAMPInterior Lamps
LT TRN/LDWLeft Turn Signal, Lane Departure Warning (Option)
REAR DEFOGRear Defogger
REAR/FOGRear Fog Lamps (Option)
RIMRear Integration Module
RIM /RPA /ISRVM /CLMRear Integration Module, Rear Parking Aid, Inside Rearview Mirror, Column Lock Module, Power Sounder, Active Front Steering (AFS), Supervisory Control Module
RUN/CRNKUHBEC Run, CRNK Relay Coil, Rear Fog Lamp Relay Coil
S/ROOFSun Roof Module (Option)
SPARESpare
STOP LAMPSStop Lamps
RT TRN/SZBARight Turn Signal, Side Blind Zone Alert (Option)
Relays
DIFF PUMPRear Differential Pump (Option)
FUEL PUMPFuel Pump
INT LAMPInterior Lamps
REAR DEFOGRear Defogger
REAR/FOGRear Fog Lamps (Option)
RUN/CRNKIgnition 1
SPARESpare
STOP LAMPStop Lamp
Circuit Breakers
WINDOW MTRSPower Window Motors Circuit Breaker
Diodes
TRUNK DIODETrunk Release
Joint Connector
J/CSplice Pack (Blue)
Cadillac STS (2005-2011) fuses and relays December 10, 2018 admin