2003-2007 Cadillac CTS Fuse Box Location Chart

2003-2007 Cadillac CTS Fuse Box Location Chart

Has the radio, cigarette outlet, or light stopped working? If yes, there is a good chance your Cadillac CTS has a blown fuse. Here is a list of fuses and designations for the Cadillac CTS.

Engine Bay Fuse Block

2003-2007 Cadillac CTS Fuse Box Location Chart

One fuse block is located in the engine compartment. The fuses in this picture are located on the passenger side of the engine bay. Look right behind the headlight on the passenger side.

RELAY / FUSEUSAGE
LO SPEED FANLow-Speed Fan Motor
HI-SPEED FANHigh 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)
CIGAR RELAY MINICigarette Lighter (Option)
BLOWER RELAY MINIFront Blower
FOGLAMP RELAY MICROFog Lamps
MAIN RELAY MICROPowertrain/ECM
STARTER RELAY MINIStarter Solenoid
CMP CLU RELAY MICROCompressor Clutch
IGN-1 RELAY MICROIgnition Switch (ON)
BODY W/HWiring Harness Connection
BODY W/HWiring Harness Connection
ENG W/HEngine Wiring Harness Connection
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
SPARENot Used
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
LIC/DIMMINGRear License Plate
 Assembly, DIM
DIM/ALDLDIM, ALDL (Assembly Line Data Link)
FLASHERTurn Signal/Hazard Flasher Module
MANIFOLDManifold Flaps 1 and 2, Air Mass Meter, Canister Purge Valve
STRG CTLSSteering Wheel Control Pad, Headlamp Switch
HTRHeater Valve, Clutch Switch
VLV/CLTCH(Normal Closed), Clutch Switch (Normal Open), Jumper to Start
 Relay Coil for Automatic Transmission
WASH NOZDriver’s and Passenger’s Side Heated Washer Nozzles
ECMElectronic Control Module
TCM/IPCTCM, ECM, and IPC
 (Instrument Panel Cluster)
IGN MODFront Bank Ignition Modules
ELEC PRNDLElectronic PRNDL
TCC/ETBrake Switch (Extended Travel), TCC/ET Brake Switch (Cruise Disable)
STOP LP SWStop Lamp Switch
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
INJFuel Injectors
COMPCompressor Clutch
CLUTCH 
WPR SWWindshield Wiper/Washer Switch
FOG LAMPFog Lamps
OUTLETCenter Console Accessory Power Outlet
POST 02Driver and Passenger’s Side Oxygen Sensors, LRPDB (Pusher Cooling Fan Relay)
I/P OUTLETInstrument Panel Accessory Power Outlet
CCPClimate Control Panel
PRE 02Driver and Passenger’s Side Oxygen Sensors, Transmission Output Speed Sensor
SPARENot Used
SPARENot Used
SPARENot Used
HDLP WASH C/B ? OPTHeadlamp Washer Motor (Option)
J CasesUsage
R REARRRPDB (Passenger Side Rear Power Distribution Box)
R REARRRPDB (Passenger Side Rear Power Distribution Box)
L REARLRPDB (Driver Side Rear Power Distribution Box)
L REARLRPDB (Driver Side Rear Power Distribution Box)
HI FANHigh Cooling Fan Motor
LO FANLow Cooling Fan Motor
BLOWERPWM Fan Motor Assembly
STARTERStarter Solenoid
EBCMElectronic Brake Control Module

Fuse Block Interior Under Rear Seat (Driver Side)

cadillac cts uses under the rear seat

The interior fuses are located inside under the rear seat. To locate the fuses, remove the rear seat. To remove the rear seat cushion, you should see a cushion release in the front part of the rear seat cushion. Once you pull on the release, pull the cushion up. Remove the seat cushion.

RelaysUsage
SPARENot Used
SPARENot Used
SPARENot Used
PUSHER FANPusher Fan (Export Only)
L POSITION RELAY MICRODriver’s Side Position Lamp
R POSITION RELAY MICROPassenger’s Side Position Lamp
IGN 3 RELAYHeated Seat Modules, Air Inlet
MICROMotor, Shifter Assembly
STANDING LAMP RLY MICROControl for Position Lamp Relays
RelaysUsage
TRK DR REL SOL RELAY MICROTrunk Release Motor
REVLAMPISRVM (Inside Rearview Mirror).
RELAY MICROLicense Plate Lamp Assembly
MinifusesUsage
L FRT HTD

 

SEAT MOD

Driver’s Heated Seat Module
MEM/ADAPTDriver’s Power Seat Switch,
SEATMemory Seat Module
TRUNK DR RELEASETrunk Release Motor
REVERSEISRVM (Inside Rearview Mirror).
LAMPLicense Plate Lamp Assembly
SPARENot Used
POSITIONTaillamp Assemblies, Front
LAMPPosition Lamp Assemblies
SPARENot Used
SPARENot Used
AUDIORadio, OnStar Module
SPARENot Used
REAR DR MODRear Door Modules
SPARENot Used
DRIVER DR MODDriver’s Door Module
SPARENot Used
HDLPHeadlamp Leveling System
LEVELINGChassis Sensors (Export Only)
EBCMEBCM (Electronic Brake Control Module)
CCPCCP (Climate Control Panel)
IGN 3Heated Seat Modules, Air Inlet
Motor, Shifter Assembly 
AMPAudio Amplifier
PUSHER FANPusher Fan (Export Only)
SEAT C/BPower Seat Switches, Memory Seat Module

Fuse Block Interior Under Rear Seat (Passenger Side)

The interior fuses are located inside under the rear seat. To locate the fuses, remove the rear seat. To remove the rear seat cushion, you should see a cushion release in the front part of the rear seat cushion. Once you pull on the release, pull the cushion up. Remove the seat cushion.

Mini fusesUsage
INTERIOR

 

LAMP

Hush Panel Lamps, Puddle

 

Lamps, Overhead Courtesy

Lamp Assembly

PSGR DR MODRight Front Passenger

 

Door Module

RIMRIM (Rear Integration Module), Ignition Switch, Key Lock Cylinder
REAR

 

FOGLAMP

Rear Fog Lamps (Export Only)
SPARENot Used
NAVTV Tuner Assembly (Export Only), VICS (Vehicle Information Communication System) Module
SPARENot Used
SPARENot Used
POWER

 

SOUNDER

Power Sounder, Inclination Sensor
SPARENot Used
TRUNK LAMPTrunk Lamp
FUEL

 

PUMP MTR

Fuel Pump Motor
AFTERBOILAfterboil Heater Pump
R FRT HTDPassenger’s Side Heated
SEAT MODSeat Module
SPARENot Used
SIRSDM (Sensing Diagnostic

 

Module)

RIMISRVM (Inside Rearview Mirror), Power Sounder, RIM, Passive Trunk Release Sensor
CANISTER

 

VENT

Canister Vent Solenoid
SPARENot Used
DR MOD

 

PWR C/B

Door Modules
J CasesUsage
REAR DEFOGRear Window Defogger Element
SUNROOF

 

MOD

Power Sunroof Module
RelaysUsage
RAP

 

RELAY MINI

Retained Accessory Power
SPARENot Used
REAR DEFOG RELAY MINIRear Window Defogger
SPARENot Used
AFTER

 

BOIL MICRO

Afterboil Heater Pump
INT LAMP RELAY MICROHush Panel Lamps, Puddle Lamps, Overhead Courtesy Lamp Assembly
IGN 1 RELAY MICROIgnition Switch
REAR FOG LAMP RLY MICRORear Fog Lamps (Export Only)
FUEL PUMP MOTOR RLY MICROFuel Pump Motor

You can easily identify blown fuses by looking at them. Bad fuses will have the wire between the two posts disconnected. For more help, check out the article on Easy Ways to Check for a Blown Fuse. 

If your Cadillac CTS doesn’t start or a warning light is staying on, check out our guide on how to Diagnose Vehicle Problems Like a Pro.

We hope you find the 2003-2007 Cadillac CTS Fuse Box Location Chart guide helpful. Check these troubleshooting and repair guides for more help on your Cadillac.

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10 Comments

  1. Anonymous says:

    Where is the fuse for a 2006 CTS Cadillac windows

  2. Anonymous says:

    Window will not work, I think it a fuse it’s a 2006 CTS cali Cadillac thank you thank you thank you

  3. Anonymous says:

    My front passenger power door & lock does not work. Is there a fuse for this and what is the location and label? The light works on the passenger door though. Thanks! 2007 Cadillac CTS

  4. Anonymous says:

    Do cts have a dbw fuse or relax that controls the power to the throttle mines has no power at throttle took it to 4 different shop including care care no one knows

  5. Anonymous says:

    I have no check engine light when I turn the key to on position.

  6. Anonymous says:

    where are the power window fuses located

  7. Anonymous says:

    Where is the fuse that makes all back windows roll up and down such as the one behind the passenger

  8. Anonymous says:

    Where is the fuse or which is the fuse for the warning chime and where is it located?

  9. Anonymous says:

    Where are the fuses for the power windows located

  10. Anonymous says:

    Where is the fuse for the regular tail lights at