In this article, you will find information about the fuses of the Cadillac CTS Wagon (models 2010, 2011, 2012, 2013, and 2014), including diagrams of the fuse boxes, a list of fuses and relays, their designation, and the location of the fuse blocks within the vehicle.
Checking and Replacing Fuses in Cadillac CTS The vehicle has fuses and circuit breakers to protect against an electrical system overload. When the current electrical load is too heavy, the circuit breaker opens and closes, protecting the circuit until the current load returns to normal or the problem is fixed. This greatly reduces the chance of circuit overload and fire caused by electrical problems. Fuses and circuit breakers protect power devices in the vehicle. To check a fuse, look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Replace a bad fuse with a new one of the identical size and rating.
Caution!
Spilling liquid on any electrical component on the vehicle may damage it. Always keep the covers on any electrical component.
Location of Fuse BoxesEngine Compartment Fuse Block: The underhood fuse block is located on the passenger side of the engine compartment. Lift the fuse block cover to access the fuses.
Rear Compartment Fuse Block: The rear compartment fuse block is located on the passenger side of the vehicle, behind the trim panel in the rear compartment.
An electrical overload may cause the lamps to go on and off, or in some cases to remain off. Have the headlamp wiring checked right away if the lamps go on and off or remain off. If the wiper motor overheats due to heavy snow or ice, the windshield wipers will stop until the motor cools and will then restart. Although the circuit is protected from electrical overload, overload due to heavy snow or ice may cause wiper linkage damage.
Fuse Box Diagrams 2010Engine Compartment Fuse Block
List of fuses in the Engine Compartment Fuse Block (2010) Name Usage Mini-Fuses A/C CLTCH Air Conditioning Clutch ABS Antilock Braking System (ABS) AFS Adaptive Forward Lighting System AIRBAG IGN Airbag Switch AWD All-Wheel Drive BCM 1 Body Control Module 1 BCM 2 Body Control Module 2 BCM 3 Body Control Module 3 BCM 4 Body Control Module 4 BCM 5 Body Control Module 5 AQS/ISRVM/REAR CAMERA Air Quality Sensor / Inside Rear View Mirror / Rear View Camera BCM 6, BCM 7 Body Control Module 6 and 7 DISPLY Display DRL RT Right Daytime Running Lamp (DRL) DRL/WSW Daytime Running Lamps/Windshield Washer Pump ECM Engine Control Module (ECM) ECM/TCM IGN ECM, Transmission Control Module (TCM), Instrument Panel Cluster (IPC), PASS-Key III+ Module EMIS 1 Emission 1 EMIS 2 Emission 2 EVEN COILS Even Coils FRT FOG Front Fog Lamps HDLP WASH Headlamp Washer HORN Horn LO BEAM DRLLEFT Low-Beam Daytime Running Lamps (Left) LT HI BEAM Left High-Beam Headlamp LT LO BEAM Left Low-Beam Headlamp DRL/LT LO BEAM Daytime Running Lamps / Left Low-Beam Headlamp LTR Cigarette Lighter MISC IGN Ignition NAV MTR Navigation Motor ODD COILS Odd Coils PED PRO Not Used PWR MODING PassKey Module, Body Control Module RT HI BEAM Right High-Beam Headlamp RT LO BEAM Right Low-Beam Headlamp RT LO BEAM Right Low-Beam Headlamp SPARE Spare PWR OUTLET Console Auxiliary Power Outlet STR/WHL/CNTRL Steering Wheel Illumination TCM BATT Transmission Control Module Battery TOSS/BRK VAC RLY Transmission Output Speed Sensor / Brake Vacuum Relay WPR Windshield Wiper SPARE Spare J-Case Fuses ABS MTR ABS Motor BLWR Blower BRK VAC PUMP Brake Vacuum Pump FAN 1 Cooling Fan 1 FAN 2 Cooling Fan 2 REAR DEFOG Rear Defogger TRLR Trailer Towing EPB Electric Park Brake SPARE Spare STRTR Starter SPARE Spare WSW/HTR Not Used Relays A/C CMPRSR Air Conditioning Compressor Clutch DRL (W/0 HID) LO BEAM (HID) Daytime Running Lamps (without High Intensity Discharge), Low-Beam Headlamps (High Intensity Discharge) SPARE Spare FAN S/P Cooling Fan Series / Parallel FAN 1 Cooling Fan 1 FAN 2 Cooling Fan 2 HI BEAM High-Beam Headlamp HORN Horn IGN 1 Ignition 1 LO BEAM (W/O HID) LT DRL (HID) Low-Beam (without High Intensity Discharge), Left Daytime Running Lamp (High Intensity Discharge) HDLP WASH Headlamp Washer PWR/TRN Powertrain REAR DEFOG Rear Defogger SPARE Spare STRTR Starter WPR Windshield Wiper WPR HI Windshield Wiper High Speed SPARE Spare FOG LAMP Fog Lamps RT DRL (HID) Right Daytime Running Lamp (High Intensity Discharge)
Rear Compartment Fuse Block
List of fuses in the Rear Compartment Fuse Block (2010) Name Usage Relays MRKR/LP Not Used LCK Lock LT/POS/LP Left Position Lamp REAR/FOG Not Used RT/POS/LP Not Used FUEL/DR/RELSE Not Used STOP/LP Not Used TRUNK/RELSE Trunk Release UNLCK Unlock Mini-Fuses AIRBAG Airbag System AMP Amplifier AUX/ OUTLET Auxiliary Power Outlet CNSTR/VENT Canister Vent DR/LCK Door Lock ECM Engine Control Module (ECM) FUEL/PUMP Fuel Pump LT/POS/LP Left Position Lamp MSM Memory Seat Module ONSTAR OnStar System PDM Passenger Door Module RDO Audio System RDO/SPKR Audio Speakers REAR/FOG Not Used RKE/PASS-KEY/MDL Remote Keyless Entry System, Pass-Key Theft Deterrent Feature Module RT/POS/LP Not Used RT/POS/LP Right Position Lamp RVC/SNSR Regulated Voltage Control Sensor S/ROOF Sunroof REAR/WSW Rear Windshield Wiper / Washer WASH/ PUMP Windshield Washer Pump STOP/LP Not Used THEFT/UGDO Theft Deterrent System, Universal Home Remote System TRLR/POS/LP Trailer Turn Position Lamps Circuit Breakers DRV/PWR/SEAT Left Front Power Seat PWR CLMN Power Steering Column PWR/WNDW Power Window PASS/PWR/ SEAT Right Front Power Seat LT/REAR/WNDW Left Rear Window REAR/WNDW Right Rear Window
2011Engine Compartment Fuse Block
List of fuses in the Engine Compartment Fuse Block (2011) № Usage Mini-Fuses 11 Not Used 19 Antilock Braking System (ABS) 22 Display 23 Not Used 24 Body Control Module 1 25 Automatic Forward Lighting System (HID Only) 26 Body Control Module 5 27 Body Control Module 4 28 Navigation Motor 29 All-Wheel Drive 30 Transmission Control Module Battery 31 Horn 33 Left Low-Beam Headlamp (Domestic Non-HID Only) 34 Pedestrian Protection System (Export Only) 35 Body Control Module 3 36 Body Control Module 2 38 Headlamp Washer (HID Only) 40 Right Low-Beam Headlamp (Domestic Non-HID Only) 41 Air Conditioning Compressor Clutch 43 Low-Beam Daytime Running Lamps (non-HID), Left Daytime Running Lamps (HID), Left Trailer Turn Signal (Export Only) 46 Left High-Beam Headlamp 47 Right High-Beam Headlamp 50 Right Daytime Running Lamp 51 Airbag System Ignition Switch 52 Engine Control Module Ignition, Transmission Control Module Ignition 54 Power Moding (Immobilizer Module, Ignition Switch) 55 Not Used 56 Windshield Wipers 57 Right Low-Beam (HID Only) 58 Daytime Running Lamps (non-HID), Left Low-Beam (HID Only) 59 Right Daytime Running Lamp (HID Only), Right Trailer Turn Signal (Export Only) 60 Instrument Panel Auxiliary Power Outlet 61 Air Quality Sensor, Inside Rear View Mirror, Rear Camera 62 Ignition 64 Steering Wheel Illumination 65 Front Fog Lamps (HID Only) 69 Body Control Module 6, Body Control Module 7 70 Emissions 1 71 Even Ignition Coils 72 Engine Control Module 73 Emissions 2 74 Odd Ignition Coils 75 Transmission Output Speed Sensor, Brake Vacuum Relay 76 Spare 77 Spare 78 Spare 79 Spare 80 Spare 81 Spare J-Case Fuses 6 Cooling Fan 2 7 Cooling Fan 1 8 Starter 9 Brake Vacuum Pump 10 Antilock Brake System Motor 13 Not Used 14 Electric Parking Brake 15 Not Used 16 Not Used 17 Blower Motor 18 Transmission Control Module Battery 37 Trailer (Export Only) Relays 1 Cooling Fan 2 2 Cooling Fan 1 3 Starter 4 Rear Window Defogger 5 Instrument Panel Auxiliary Power Outlet 12 Horn 20 Headlamp Washer (HID Only) 21 Cooling Fan (Series / Parallel) 32 Air Conditioning Compressor Clutch 39 Not Used 42 Right Daytime Running Lamp, Trailer Turn Signal 44 Low-Beam (non-HID), Left Daytime Running Lamps (HID), Left Trailer Turn Signal (Export Only) 45 Front Fog Lamps (HID Only) 48 High-Beam Headlamps 49 Daytime Running Lamps (Non-HID), Low-Beam Headlamps (HID) 53 Not Used 63 Main Ignition 66 Windshield Wipers 67 Powertrain 68 Windshield Wipers High Speed
Rear Compartment Fuse Block
List of fuses in the Rear Compartment Fuse Block (2011) № Usage Relays 5 Stop Lamps (Export Only) 6 Door Lock 7 Door Unlock 8 Fuel Door Unlock (Export Only) 9 Right Position Lamp (Export Only) 10 Console / Auxiliary Power Outlet 11 Not Used 12 Side Marker Lamps 13 Left Position Lamps Mini-Fuses 14 Right Position Lamp 15 Left Position Lamp 16 Door Lock 17 Console / Auxiliary Power Outlet 18 Rear Fog / Export Body Control Module (Export Only) 19 Rear Windshield Wiper/Washer 20 Windshield Washer Pump 21 Sunroof 22 Right Position Lamp (Export Only) 23 Regulated Voltage Control Sensor 24 Audio System (Radio) 25 Airbag System 26 Remote Keyless Entry / PASS-Key Theft Deterrent Module 27 Audio Speakers / Subwoofer 28 OnStar System (If Equipped) 29 Engine Control Module 30 Canister Vent 31 Fuel Pump 33 Stop Lamps (Export Only) 34 Theft Deterrent System / Universal Garage Door Opener 35 Memory Seat Module 36 Passenger Door Module 38 Rear Auxiliary Power Outlet 39 Amplifier Circuit Breakers 1 Driver Power Seat Switch 2 Passenger Power Seat Switch 3 Power Windows 4 Power Steering Column 32 Left Rear Window Switch 37 Right Rear Window Switch
2012Engine Compartment Fuse Block
List of fuses in the Engine Compartment Fuse Block (2012) № Usage Mini-Fuses 11 Not Used 19 Antilock Braking System (ABS) 22 Display 23 Not Used 24 Body Control Module 1 25 Automatic Forward Lighting System (HID Only) 26 Body Control Module 5 27 Body Control Module 4 28 Navigation Motor 29 All-Wheel Drive 30 Transmission Control Module Battery 31 Horn 33 Left Low-Beam Headlamp (Domestic Non-HID Only) 34 Pedestrian Protection System (Export Only) 35 Body Control Module 3 36 Body Control Module 2 38 Headlamp Washer (HID Only) 40 Right Low-Beam Headlamp (Domestic Non-HID Only) 41 Air Conditioning Compressor Clutch 43 Low-Beam Daytime Running Lamps (non-HID), Left Daytime Running Lamps (HID), Left Trailer Turn Signal (Export Only) 46 Left High-Beam Headlamp 47 Right High-Beam Headlamp 50 Right Daytime Running Lamp 51 Airbag System Ignition Switch 52 Engine Control Module Ignition, Transmission Control Module Ignition 54 Power Moding (Immobilizer Module, Ignition Switch) 55 Not Used 56 Windshield Wipers 57 Right Low-Beam (HID Only) 58 Daytime Running Lamps (non-HID), Left Low-Beam (HID Only) 59 Right Daytime Running Lamp (HID Only), Right Trailer Turn Signal (Export Only) 60 Instrument Panel Auxiliary Power Outlet 61 Air Quality Sensor, Inside Rear View Mirror, Rear Camera 62 Ignition 64 Steering Wheel Illumination 65 Front Fog Lamps (HID Only) 69 Body Control Module 6, Body Control Module 7 70 Emissions 1 71 Even Ignition Coils 72 Engine Control Module 73 Emissions 2 74 Odd Ignition Coils 75 Transmission Output Speed Sensor, Brake Vacuum Relay 76 Spare 77 Spare 78 Spare 79 Spare 80 Spare 81 Spare J-Case Fuses 6 Cooling Fan 2 7 Cooling Fan 1 8 Starter 9 Brake Vacuum Pump 10 Antilock Brake System Motor 13 Not Used 14 Electric Parking Brake 15 Not Used 16 Not Used 17 Blower Motor 18 Transmission Control Module Battery 37 Trailer (Export Only) Relays 1 Cooling Fan 2 2 Cooling Fan 1 3 Starter 4 Rear Window Defogger 5 Instrument Panel Auxiliary Power Outlet 12 Horn 20 Headlamp Washer (HID Only) 21 Cooling Fan (Series / Parallel) 32 Air Conditioning Compressor Clutch 39 Not Used 42 Right Daytime Running Lamp, Trailer Turn Signal 44 Low-Beam (non-HID), Left Daytime Running Lamps (HID), Left Trailer Turn Signal (Export Only) 45 Front Fog Lamps (HID Only) 48 High-Beam Headlamps 49 Daytime Running Lamps (Non-HID), Low-Beam Headlamps (HID) 53 Not Used 63 Main Ignition 66 Windshield Wipers 67 Powertrain 68 Windshield Wipers High Speed
Rear Compartment Fuse Block
List of fuses in the Rear Compartment Fuse Block (2012) № Usage Relays 5 Stop Lamps (Export Only) 6 Door Lock 7 Door Unlock 8 Fuel Door Unlock (Export Only) 9 Right Position Lamp (Export Only) 10 Console / Auxiliary Power Outlet 11 Not Used 12 Side Marker Lamps 13 Left Position Lamps Mini-Fuses 14 Right Position Lamp 15 Left Position Lamp 16 Door Lock 17 Console / Auxiliary Power Outlet 18 Rear Fog / Export Body Control Module (Export Only) 19 Rear Windshield Wiper/Washer 20 Windshield Washer Pump 21 Sunroof 22 Right Position Lamp (Export Only) 23 Regulated Voltage Control Sensor 24 Audio System (Radio) 25 Airbag System 26 Remote Keyless Entry / PASS-Key Theft Deterrent Module 27 Audio Speakers / Subwoofer 28 OnStar System (If Equipped) 29 Engine Control Module 30 Canister Vent 31 Fuel Pump 33 Stop Lamps (Export Only) 34 Theft Deterrent System / Universal Garage Door Opener 35 Memory Seat Module 36 Passenger Door Module 38 Rear Auxiliary Power Outlet 39 Amplifier Circuit Breakers 1 Driver Power Seat Switch 2 Passenger Power Seat Switch 3 Power Windows 4 Power Steering Column 32 Left Rear Window Switch 37 Right Rear Window Switch
2013Engine Compartment Fuse Block
List of fuses in the Engine Compartment Fuse Block (2013) № Usage Mini-Fuses 11 Not Used 19 Antilock Braking System (ABS) 22 Display 23 Not Used 24 Body Control Module 1 25 Automatic Forward Lighting System (HID Only) 26 Body Control Module 5 27 Body Control Module 4 28 Navigation Motor 29 All-Wheel Drive 30 Transmission Control Module Battery 31 Horn 33 Left Low-Beam Headlamp (Domestic Non-HID Only) 34 Pedestrian Protection System (Export Only) 35 Body Control Module 3 36 Body Control Module 2 38 Headlamp Washer (HID Only) 40 Right Low-Beam Headlamp (Domestic Non-HID Only) 41 Air Conditioning Compressor Clutch 43 Low-Beam Daytime Running Lamps (non-HID), Left Daytime Running Lamps (HID), Left Trailer Turn Signal (Export Only) 46 Left High-Beam Headlamp 47 Right High-Beam Headlamp 50 Right Daytime Running Lamp 51 Airbag System Ignition Switch 52 Engine Control Module Ignition, Transmission Control Module Ignition 54 Power Moding (Immobilizer Module, Ignition Switch) 55 Not Used 56 Windshield Wipers 57 Right Low-Beam (HID Only) 58 Daytime Running Lamps (non-HID), Left Low-Beam (HID Only) 59 Right Daytime Running Lamp (HID Only), Right Trailer Turn Signal (Export Only) 60 Instrument Panel Auxiliary Power Outlet 61 Air Quality Sensor, Inside Rear View Mirror, Rear Camera 62 Ignition 64 Steering Wheel Illumination 65 Front Fog Lamps (HID Only) 69 Body Control Module 6, Body Control Module 7 70 Emissions 1 71 Even Ignition Coils 72 Engine Control Module 73 Emissions 2 74 Odd Ignition Coils 75 Transmission Output Speed Sensor, Brake Vacuum Relay 76 Spare 77 Spare 78 Spare 79 Spare 80 Spare 81 Spare J-Case Fuses 6 Cooling Fan 2 7 Cooling Fan 1 8 Starter 9 Brake Vacuum Pump 10 Antilock Brake System Motor 13 Not Used 14 Electric Parking Brake 15 Not Used 16 Not Used 17 Blower Motor 18 Transmission Control Module Battery 37 Trailer (Export Only) Relays 1 Cooling Fan 2 2 Cooling Fan 1 3 Starter 4 Rear Window Defogger 5 Instrument Panel Auxiliary Power Outlet 12 Horn 20 Headlamp Washer (HID Only) 21 Cooling Fan (Series / Parallel) 32 Air Conditioning Compressor Clutch 39 Not Used 42 Right Daytime Running Lamp, Trailer Turn Signal 44 Low-Beam (non-HID), Left Daytime Running Lamps (HID), Left Trailer Turn Signal (Export Only) 45 Front Fog Lamps (HID Only) 48 High-Beam Headlamps 49 Daytime Running Lamps (Non-HID), Low-Beam Headlamps (HID) 53 Not Used 63 Main Ignition 66 Windshield Wipers 67 Powertrain 68 Windshield Wipers High Speed
Rear Compartment Fuse Block
List of fuses in the Rear Compartment Fuse Block (2013) № Usage Relays 5 Stop Lamps (Export Only) 6 Door Lock 7 Door Unlock 8 Fuel Door Unlock (Export Only) 9 Right Position Lamp (Export Only) 10 Console / Auxiliary Power Outlet 11 Not Used 12 Side Marker Lamps 13 Left Position Lamps Mini-Fuses 14 Right Position Lamp 15 Left Position Lamp 16 Door Lock 17 Console / Auxiliary Power Outlet 18 Rear Fog / Export Body Control Module (Export Only) 19 Rear Windshield Wiper/Washer 20 Windshield Washer Pump 21 Sunroof 22 Right Position Lamp (Export Only) 23 Regulated Voltage Control Sensor 24 Audio System (Radio) 25 Airbag System 26 Remote Keyless Entry / PASS-Key Theft Deterrent Module 27 Audio Speakers / Subwoofer 28 OnStar System (If Equipped) 29 Engine Control Module 30 Canister Vent 31 Fuel Pump 33 Stop Lamps (Export Only) 34 Theft Deterrent System / Universal Garage Door Opener 35 Memory Seat Module 36 Passenger Door Module 38 Rear Auxiliary Power Outlet 39 Amplifier Circuit Breakers 1 Driver Power Seat Switch 2 Passenger Power Seat Switch 3 Power Windows 4 Power Steering Column 32 Left Rear Window Switch 37 Right Rear Window Switch
2014Engine Compartment Fuse Block
List of fuses in the Engine Compartment Fuse Block (2014) № Usage Mini-Fuses 11 Not Used 19 Antilock Braking System (ABS) 22 Display 23 Not Used 24 Body Control Module 1 25 Automatic Forward Lighting System (HID Only) 26 Body Control Module 5 27 Body Control Module 4 28 Navigation Motor 29 All-Wheel Drive 30 Transmission Control Module Battery 31 Horn 33 Left Low-Beam Headlamp (Domestic Non-HID Only) 34 Pedestrian Protection System (Export Only) 35 Body Control Module 3 36 Body Control Module 2 38 Headlamp Washer (HID Only) 40 Right Low-Beam Headlamp (Domestic Non-HID Only) 41 Air Conditioning Compressor Clutch 43 Low-Beam Daytime Running Lamps (non-HID), Left Daytime Running Lamps (HID), Left Trailer Turn Signal (Export Only) 46 Left High-Beam Headlamp 47 Right High-Beam Headlamp 50 Right Daytime Running Lamp 51 Airbag System Ignition Switch 52 Engine Control Module Ignition, Transmission Control Module Ignition 54 Power Moding (Immobilizer Module, Ignition Switch) 55 Not Used 56 Windshield Wipers 57 Right Low-Beam (HID Only) 58 Daytime Running Lamps (non-HID), Left Low-Beam (HID Only) 59 Right Daytime Running Lamp (HID Only), Right Trailer Turn Signal (Export Only) 60 Instrument Panel Auxiliary Power Outlet 61 Air Quality Sensor, Inside Rear View Mirror, Rear Camera 62 Ignition 64 Steering Wheel Illumination 65 Front Fog Lamps (HID Only) 69 Body Control Module 6, Body Control Module 7 70 Emissions 1 71 Even Ignition Coils 72 Engine Control Module 73 Emissions 2 74 Odd Ignition Coils 75 Transmission Output Speed Sensor, Brake Vacuum Relay 76 Spare 77 Spare 78 Spare 79 Spare 80 Spare 81 Spare J-Case Fuses 6 Cooling Fan 2 7 Cooling Fan 1 8 Starter 9 Brake Vacuum Pump 10 Antilock Brake System Motor 13 Not Used 14 Electric Parking Brake 15 Not Used 16 Not Used 17 Blower Motor 18 Transmission Control Module Battery 37 Trailer (Export Only) Relays 1 Cooling Fan 2 2 Cooling Fan 1 3 Starter 4 Rear Window Defogger 5 Instrument Panel Auxiliary Power Outlet 12 Horn 20 Headlamp Washer (HID Only) 21 Cooling Fan (Series / Parallel) 32 Air Conditioning Compressor Clutch 39 Not Used 42 Right Daytime Running Lamp, Trailer Turn Signal 44 Low-Beam (non-HID), Left Daytime Running Lamps (HID), Left Trailer Turn Signal (Export Only) 45 Front Fog Lamps (HID Only) 48 High-Beam Headlamps 49 Daytime Running Lamps (Non-HID), Low-Beam Headlamps (HID) 53 Not Used 63 Main Ignition 66 Windshield Wipers 67 Powertrain 68 Windshield Wipers High Speed
Rear Compartment Fuse Block
List of fuses in the Rear Compartment Fuse Block (2014) № Usage Relays 5 Stop Lamps (Export Only) 6 Door Lock 7 Door Unlock 8 Fuel Door Unlock (Export Only) 9 Right Position Lamp (Export Only) 10 Console / Auxiliary Power Outlet 11 Not Used 12 Side Marker Lamps 13 Left Position Lamps Mini-Fuses 14 Right Position Lamp 15 Left Position Lamp 16 Door Lock 17 Console / Auxiliary Power Outlet 18 Rear Fog / Export Body Control Module (Export Only) 19 Rear Windshield Wiper / Washer 20 Windshield Washer Pump 21 Sunroof 22 Right Position Lamp (Export Only) 23 Regulated Voltage Control Sensor 24 Audio System (Radio) 25 Airbag System 26 Remote Keyless Entry / PASS-Key Theft Deterrent Module 27 Audio Speakers / Subwoofer 28 OnStar System (If Equipped) 29 Engine Control Module 30 Canister Vent 31 Fuel Pump 33 Stop Lamps (Export Only) 34 Theft Deterrent System / Universal Garage Door Opener 35 Memory Seat Module 36 Passenger Door Module 38 Rear Auxiliary Power Outlet 39 Amplifier Circuit Breakers 1 Driver Power Seat Switch 2 Passenger Power Seat Switch 3 Power Windows 4 Power Steering Column 32 Left Rear Window Switch 37 Right Rear Window Switch