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Cadillac CTS (2005 – 2007) – fuse box diagram


Cadillac CTS (2005 – 2007) – fuse box diagram

Year of production: 2005, 2006, 2007

Underhood Fuse Block

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

Cadillac CTS mk1 - fuse box - engine compartment
Cadillac CTS mk1 – fuse box – engine compartment
RelaysUsage
LO SPEED FAN RELAY MINILow Speed Fan Motor
HI SPEED FAN RELAY MINIHigh Speed Fan Motor
ACCESSORY RELAY MINIAccessory Power Outlets
S/P FAN RELAY MINISeries/Parallel Fan
PARK LAMP RELAY MICROParking Lamps
HORN RELAY MICROHorn
HI BEAM RELAY MICROHigh-Beam Headlamps
DRL RELAY MICRO – OPTDaytime Running Lamps
LO BEAM RELAY/HID MINI – OPTLow-Beam HID Headlamps (Option)
HDLP WASH RELAY MINI – OPTHeadlamp Washer Motor (Option)
SPARENot used
BLOWER RELAY MINIFront Blower
FOG LAMP RELAY MICROFog Lamps
MAIN RELAY MICROPowertrain/ECM
STARTER RELAY MINIStarter Solenoid
CMP CLU RELAY MICROCompressor Clutch
IGN-1 RELAY MICROIgnition Switch (ON)

 

Wiring HarnessesUsage
BODY W/HWiring Harness Connection
I/P W/HWiring Harness Connection
ENG W/HEngine Wiring Harness Connection
FORWARD LAMPForward Lamp Wiring Harness Connection

 

J CasesUsage
R REARRRPDB (Passenger’s Side Rear Power Distribution Box)
R REARRRPDB (Passenger’s Side Rear Power Distribution Box)
L REARLRPDB (Driver’s Side Rear Power Distribution Box)
L REARLRPDB (Driver’s Side Rear Power Distribution Box)
HI FANHigh Cooling Fan Motor
LO FANLow Cooling Fan Motor
BLOWERPWM Fan Motor Assembly
STARTERStarter Solenoid
ABSAnti-Lock Brake System

 

FusesUsage
RT PARKPassenger’s Side Taillamp Assembly, Front Sidemarker and Front Parking Lamp Assembly
HORNDual Horn Assembly
LT HI BEAMDriver’s Side High-Beam Headlamp
LT LOW BEAMDriver’s Side Low-Beam Headlamp
RT LOW BEAMPassenger’s Side Low-Beam Headlamp
RT HI BEAMPassenger’s Side High-Beam Headlamp
TOSManual Transmission Output Speed Sensor
SPARENot 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)
FLASHERTurn Signal/Hazard Flasher Module
ECMElectronic 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)
SPARENot Used
IGN MOD/MAFFront Bank Ignition Modules
ELEC PRNDLElectronic PRNDL
SPARENot Used
SPARENot Used
IGN SWIgnition Switch (Power to IGN-3 and CRANK)
VOLT CHECKDIM (Dash Integration Module)
ECM/TCMTCM (Transmission Control Module), ECM (Electronic Control Module), IPC (Instrument Panel Cluster), PASS-Key III+ Module
WPR MODWindshield Wiper Module Assembly
ODD INJ/COILSOdd Ignition Coils, Fuel Injectors, Odd Injection Coils
COMP
CLUTCH
Compressor Clutch
WPR SWWindshield Wiper/Washer Switch
FOG LAMPFog Lamps
OUTLETCenter Console Accessory Power Outlet
POST 02Driver’s and Passenger’s Side Oxygen Sensors, LRPDB (Pusher Cooling Fan Relay)
I/P OUTLETInstrument Panel Accessory Power Outlet
CCPClimate Control Panel
EVEN INJ/COILSEven Injection Coils
SPARENot Used
SPARENot Used
SPARENot Used

 

Circuit BreakersUsage
HDLP WASH C/B – OPTHeadlamp Washer Motor

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 rear seat cushion must be removed to access the rear fuse block.

Cadillac CTS mk1 - fuse box - rear udnerseat (driver's side)
Cadillac CTS mk1 – fuse box – rear udnerseat (driver’s side)
FusesUsage
SPARENot Used
SPARENot Used
AUDIORadio, OnStar Module
SPARENot Used
REAR DR MODRear Door Modules
SPARENot Used
DRIVER DR MODDriver’s Door Module
BASTaillamps, Center High-Mounted Stoplamp, Flasher Module, ABS Module, Trailer Lamps
HDLP LEVELINGHeadlamp Leveling System Chassis Sensors (Export Only)
SPARENot Used
CCPCCP (Climate Control Panel)
IGN 3Heated Seat Modules, Air Inlet Motor, Shifter Assembly
SPARENot Used
SPARENot Used
FUSE PULLERFuse Puller
L FRT HTD SEAT MODDriver’s Heated Seat Module
MEM/ADAPT SEATDriver’s Power Seat Switch, Memory Seat Module
TRUNK DR RELEASETrunk Release Motor
REVERSE LAMPISRVM (Inside Rearview Mirror), License Plate Lamp Assembly
SPARENot Used
POSITION LAMPTaillamp Assemblies, Front Position Lamp Assemblies

 

RelayUsage
BAS RELAY MINIBrake Apply Sensor
PUSHER FANPusher Fan (Export Only)
L POSITION RELAY MICRODriver’s Side Position Lamp
TRK DR REL SOL RELAY MICROTrunk Release Motor
REV LAMP RELAY MICROISRVM (Inside Rearview Mirror), License Plate Lamp Assembly
R POSITION RELAY MICROPassenger’s Side Position Lamp
IGN 3 RELAY MICROHeated Seat Modules, Air Inlet Motor, Shifter Assembly
STANDING LAMP RLY MICROControl for Position Lamp Relays

 

J CasesUsage
AMPAudio Amplifier
PUSHER FANPusher Fan (Export Only)

 

Circuit BreakersUsage
SEAT C/BPower Seat Switches, Memory Seat Module

Misc.Usage
JOINT
CONNECTOR
Joint Connector

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.

Cadillac CTS mk1 - fuse box - rear udnerseat (passenger's side)
Cadillac CTS mk1 – fuse box – rear udnerseat (passenger’s side)
FusesUsage
TRUNK DIODETrunk Lamp
POWER SOUNDERPower Sounder, Inclination Sensor
SPARENot Used
CANISTER VENTCanister Vent Solenoid
FUEL PUMP MTRFuel Pump Motor
SPARENot Used
R FRT HTD SEAT MODPassenger’s Side Heated Seat Module
SPARENot Used
AIR BAGSDM (Sensing Diagnostic Module)
RIMISRVM (Inside Rearview Mirror), Power Sounder, RIM
ABSAnti-Lock Brake System
SPARENot Used
SPARENot Used
SPARENot Used
FUSE PULLERFuse Puller
INTERIOR LAMPHush Panel Lamps, Puddle Lamps, Overhead Courtesy Lamp Assembly
PSGR DR MODRight Front Passenger Door Module
RIM/IGN SWRIM (Rear Integration Module), Ignition Switch, Key Lock Cylinder
REAR FOG LAMPRear Fog Lamps (Export Only)
SPARENot Used
TV/VICSTV Tuner Assembly (Export Only), VICS (Vehicle Information Communication System) Module

 

RelaysUsage
SPARENot Used
REAR DEFOG RELAY MINIRear Window Defogger
SPARENot Used
REAR FOG LAMP RLY MICRORear Fog Lamps (Export Only)
FUEL PUMP MOTOR RLY MICROFuel Pump Motor
INT LAMP RELAY MICROHush Panel Lamps, Puddle Lamps, Overhead Courtesy Lamp Assembly
IGN 1 RELAY MICROIgnition Switch

 

 

Circuit BreakersUsage
DR MOD PWR C/BDoor Modules

 

J CasesUsage
REAR DEFOGRear Window Defogger Element
SUNROOF MODPower Sunroof Module

 

Misc.Usage
JOINT CONNECTORJoint Connector

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