Fuse Box Diagrams Cadillac CTS/CTS-V (2014-2019)

In this article, you will find information about the fuses of the Cadillac CTS/CTS-V (models 2014, 2015, 2017, and 2019) , including diagrams of the fuse boxes, a list of fuses and relays, their designation, and the location of the fuse blocks within the vehicle.

Cadillac CTS (2014-2019)

Checking and Replacing Fuses in Cadillac CTS/CTS-V

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. Be sure to 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 Boxes

Engine Compartment Fuse Block:
The underhood fuse block is on the passenger side of the engine compartment. Lift the fuse block cover to access the fuses.
Cadillac CTS (2014-2019): Engine compartment fuse box location

Instrument Panel Fuse Block:
The instrument panel fuse block is in the end of the driver side of the instrument panel. To access the fuses, remove the end panel by gently prying with a plastic tool near each clip, beginning at the point shown. To install the end cover, insert the tabs on the back of the cover into the slots in the instrument panel at the points shown. Align the clips with the slots in the instrument panel, and press the cover into place.
Cadillac CTS (2014-2019): Instrument panel fuse box location

Rear Compartment Fuse Block:
The rear compartment fuse block is behind a cover on the driver side of the rear compartment.
Cadillac CTS (2014-2019): Load compartment fuse box location

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. Wiper function is available immediately after the wiper switch is set to off, and back to on. Always clear ice and heavy snow from the windshield before using the windshield wipers.


Fuse Box Diagrams

2014

Engine Compartment Fuse Block

Cadillac CTS (2014): Engine compartment fuse box diagram

List of fuses in the Engine Compartment Fuse Block (2014)
Usage
1Not Used
2Not Used
*3Not Used
4Body Control Module 6
5Not Used
6Driver Power Seat
7Not Used
*8Headlamp Washer Relay
9Not Used
10Not Used
11Not Used
12Not Used
13Passenger Power Seat
14Body Control Module 5
15Front Wiper
16Not Used
*17Headlamp Washer
18Not Used
19Antilock Brake System Pump
20Antilock Brake System Valve
*21AIR Pump
22MSB Driver
23Wiper Control Relay
24Wiper Speed Relay
25Engine Control Module Relay
*26AIR Pump Relay
27Spare / Heated Seat 2
28Body Control Module 1 / Spare
*29AFS AHL / Pedestrian Protection
30Passenger Window Switch
31Body Control Module 7
32Sunroof
33Not Used
34AOS Display / MIL Ignition
35Rear Electrical Center Ignition
36Spare PT Fuse
37Oxygen Sensor
38Ignition Coils / Injectors
39Ignition Coils / Injectors/Spare
40Engine Control Module
41Fuel Heater
*42AIR Solenoid Relay
43Washer
44Not Used
45Front Washer Relay
46Not Used
47Instrument Panel Body Ignition
48Fuel System Control Module Ignition
49Heated Steering Wheel
*50Steering Column Lock
*51Coolant Pump
*52Coolant Pump Relay
53Air Conditioning Compressor Clutch
*54AIR Solenoid
55Transmission Control Module / Spare
*56Headlamp Low Relay
57Headlamp High Relay
58Starter
59Starter Relay
60Run / Crank Relay
*61Vacuum Pump Relay
62Air Conditioning Control Relay
*63Adaptive Headlamp Leveling
*64Left High Intensity Discharge Headlamp
*65Right High Intensity Discharge Headlamp
66Headlamp High Left/Right
67Horn
68Horn Relay
69Cooling Fan
70Aero Shutter
71Transmission Control Module Ignition
72Engine Control Module Ignition
*73Brake Vacuum Pump
74Not Used
* Optional
Instrument Panel Fuse Block

Cadillac CTS (2014): Instrument panel fuse box diagram

List of fuses in the Instrument Panel Fuse Block (2014)
Usage
Mini Fuses
2Motorized Cupholder
3Electric Steering Column Lock
4Data Link Connector
5Heater, Ventilation, and Air Conditioning Control
6Tilt and Telescoping Steering Column
8Spare
9Glove Box Release
10Shunt
11Body Control Module 1
12Body Control Module 5
13Spare
14Spare
15Spare
16Spare
17Spare
18Spare
19Spare
20Spare
21Spare
22Sensing Diagnostic Module / Automatic Occupant Sensing
23Radio / DVD / Heater, Ventilation, and Air Conditioning
24Display
25Heated Steering Wheel
26Wireless Charger
27Steering Wheel Switches
28Spare
29Spare
30Spare
J Case Fuses
31Spare
32Spare
33Front Heater, Ventilation, and Air Conditioning Blower
CB1Retained Accessory Power / Accessory Power Outlet Power
CB7Spare
Relays
K10Retained Accessory Power / Accessory
K605Logistics
K644Glove Box Release
Rear Compartment Fuse Block

Cadillac CTS (2014): Rear compartment fuse box diagram

List of fuses in the Rear Compartment Fuse Block (2014)
Usage
*1Electronic Limited Slip Differential / DC DC Transformer
2Left Window
3Body Control Module 8
*4A/C Inverter
5Passive Entry Passive Start Battery 1
6Body Control Module 4
7Heated Mirrors
8Amplifier
9Rear Window Defogger
10Glass Break
*11Trailer Connector
12OnStar (If Equipped)
13Right Window
14Electric Parking Brake
15Not Used
16Trunk Release
*17Run Relay
*18Logistics Relay
*19Logistics Fuse
20Rear Window Defogger Relay
21Mirror Window Module
22Pedestrian Protection
23Canister Vent
24Pedestrian Protection
*25Rear Vision Camera
*26Front Ventilated Seats
*27SBZA / LDW/EOCM
*28Trailer/Sunshade
*29Rear Heated Seats
*30Semi-Active Damping System
*31Transfer Case Control Module / Electronic Limited Slip Differential
32Theft Module/ Universal Garage Door Opener / Rain Sensor
*33UPA
*34Radio / DVD
35Not Used
*36Trailer
37Fuel Pump / Fuel System Control Module
38Not Used
39Not Used
40Not Used
41Not Used
*42Memory Seat Module
43Body Control Module 3
44Not Used
45Battery Regulated Voltage Control
46Engine Control Module Battery
47Not Used
48Not Used
*49Trailer Module
50Door Lock Security
51Rear Closure Release
52Not Used
53Not Used
54Door Lock Security
55Not Used
*56Fuel Door
* Optional

2015

Engine Compartment Fuse Block

Cadillac CTS (2015): Engine compartment fuse box diagram

List of fuses in the Engine Compartment Fuse Block (2015)
Usage
1Not Used
2Not Used
*3Passenger Motorized Seat Belt
4Body Control Module 6
5Not Used
6Driver Power Seat
7Not Used
*8Headlamp Washer Relay
9Not Used
10Not Used
11Not Used
12Not Used
13Passenger Power Seat
14Body Control Module 5
15Front Wiper
16Not Used
*17Headlamp Washer
18Not Used
19Antilock Brake System Pump
20Antilock Brake System Valve
*21AIR Pump
22Driver Motorized Seat Belt
23Wiper Control Relay
24Wiper Speed Relay
25Engine Control Module Relay
*26AIR Pump Relay
27Spare / Heated Seat 2
28Body Control Module 1/Spare
*29AFS AHL / Pedestrian Protection
30Passenger Window Switch
31Body Control Module 7
32Sunroof
33Not Used
34AOS Display / MIL Ignition
35Rear Electrical Center Ignition
36Spare PT Fuse
37Oxygen Sensor
38Ignition Coils / Injectors
39Ignition Coils / Injectors/Spare
40Engine Control Module
41Fuel Heater
*42AIR Solenoid Relay
43Washer
44Not Used
45Front Washer Relay
46Not Used
47Instrument Panel Body Ignition
48Fuel System Control Module Ignition
49Heated Steering Wheel
*50Steering Column Lock
*51Coolant Pump
*52Coolant Pump Relay
53Air Conditioning Compressor Clutch
*54AIR Solenoid
55Transmission Control Module / Spare
*56Headlamp Low Relay
57Headlamp High Relay
58Starter
59Starter Relay
60Run/Crank Relay
*61Vacuum Pump Relay
62Air Conditioning Control Relay
*63Adaptive Headlamp Leveling
*64Left High Intensity Discharge Headlamp
*65Right High Intensity Discharge Headlamp
66Headlamp High Left/Right
67Horn
68Horn Relay
69Cooling Fan
70Aero Shutter
71Transmission Control Module Ignition
72Engine Control Module Ignition
*73Brake Vacuum Pump
74Not Used
* Optional
Instrument Panel Fuse Block

Cadillac CTS (2015): Instrument panel fuse box diagram

List of fuses in the Instrument Panel Fuse Block (2015)
Usage
Mini Fuses
2Motorized Cupholder
3Electric Steering Column Lock
4Data Link Connector
5Heater, Ventilation, and Air Conditioning Control
6Tilt and Telescoping Steering Column
8Spare
9Glove Box Release
10Shunt
11Body Control Module 1
12Body Control Module 5
13Spare
14Spare
15Spare
16Spare
17Spare
18Spare
19Spare
20Spare
21Spare
22Sensing Diagnostic Module / Automatic Occupant Sensing
23Radio / DVD / Heater, Ventilation, and Air Conditioning
24Display
25Heated Steering Wheel
26Wireless Charger
27Steering Wheel Switches
28Spare
29Visor
30Spare
J Case Fuses
31Spare
32Spare
33Front Heater, Ventilation, and Air Conditioning Blower
Circuit Breakers
CB1Retained Accessory Power / Accessory Power Outlet Power
CB7Spare
Relays
K10Retained Accessory Power / Accessory
K605Logistics
K644Glove Box Release
Rear Compartment Fuse Block

Cadillac CTS (2015): Rear compartment fuse box diagram

List of fuses in the Rear Compartment Fuse Block (2015)
Usage
*1Electronic Limited Slip Differential / DC DC Transformer
2Left Window
3Body Control Module 8
*4A/C Inverter
5Passive Entry Passive Start Battery 1
6Body Control Module 4
7Heated Mirrors
8Amplifier
9Rear Window Defogger
10Glass Break
*11Trailer Connector
12OnStar (If Equipped)
13Right Window
14Electric Parking Brake
15Not Used
16Trunk Release
*17Run Relay
*18Logistics Relay
*19Logistics Fuse
20Rear Window Defogger Relay
21Mirror Window Module
22Pedestrian Protection
23Canister Vent
24Body Control Module 2
*25Rear Vision Camera
*26Front Ventilated Seats
*27SBZA / LDW / EOCM
*28Trailer / Sunshade
*29Rear Heated Seats
*30Semi-Active Damping System
*31Transfer Case Control Module / Electronic Limited Slip Differential
32Theft Module / Universal Garage Door Opener / Rain Sensor
*33UPA
*34Radio/DVD
35Spare
*36Trailer
37Fuel Pump / Fuel System Control Module
38Not Used
39Not Used
40Not Used
41Not Used
*42Memory Seat Module
43Body Control Module 3
44Not Used
45Battery Regulated Voltage Control
46Engine Control Module Battery
47Not Used
48Not Used
*49Trailer Module
50Door Lock Security
51Rear Closure Release
52Not Used
53Not Used
54Door Lock Security
55Not Used
*56Fuel Door
* Optional

2017

Engine Compartment Fuse Block

Cadillac CTS (2017): Engine compartment fuse box diagram

List of fuses in the Engine Compartment Fuse Block (2017)
Usage
1-
2-
*3Passenger motorized safety belt
4-
5-
6Driver power seat
11-
13Passenger power seat
14-
15Passive entry / Passive start / Front wipers
16-
17Headlamp washers
18-
19ABS pump
20ABS valve
21-
*22Driver motorized safety belt
27Heated seat 2
28Reverse lock out
*29AFS AHL / Pedestrian protection
30-
31Passenger window switch
32-
33Sunroof
34Front wiper
*35Steering column lock
36RBEC / Ignition
37MIL / Ignition
38Aeroshutter
39O2 sensor / Emissions
40Ignition coil / Injectors
41Ignition coil / Injectors
42Engine control module
43-
45Washer
48Instrument panel / Body / Ignition
49FSCM / Ignition
50Heated steering wheel
51Engine control module / Ignition
52Transmission control module / Ignition
*53Coolant pump
55-
56Transmission control module
*64Automatic headlamp leveling
*65Left HID headlamp
*66Right HID headlamp
67High-beam headlamps
68Headlamp leveling motor
69Horn
71Coolant fan
*72Starter 2
*73Brake vacuum pump
74 Starter
75 A/C clutch
76-
Relays
7-
*8Headlamp washer
9-
10-
12-
23Wiper control relay
24Wiper speed
25Engine control module
26-
44-
46Rear washer
47Front washer
*54Coolant pump
*57Low-beam headlamp
58High-beam headlamp
59Run/Crank
*60Starter 2
*61Vacuum pump
62Starter
63A/C control
70Horn
* Optional
Instrument Panel Fuse Block

Cadillac CTS (2017): Instrument panel fuse box diagram

List of fuses in the Instrument Panel Fuse Block (2017)
Usage
2Motorized cupholder
3Electric steering column lock
4-
5HVAC control
6Tilt / Telescoping steering column
8Data link connector
9Glove box release
10Shunt
11Body control module 1
12Body control module 5
13Body control module 6
14-
15Body control module 7
16Transmission control module
17-
18-
19-
20-
21-
22Sensing diagnostic module / Automatic occupant sensing
23Radio / DVD / HVAC control
24Display
25Heated steering wheel
26Wireless charger
27Steering wheel switches
28-
29Visor
30-
31-
32-
33Front HVAC blower
CB1Accessory power outlet
CB7-
K10Retained accessory power
K605Logistics
K644Glove box release
Rear Compartment Fuse Block

Cadillac CTS (2017): Rear compartment fuse box diagram

List of fuses in the Rear Compartment Fuse Block (2017)
Usage
*1Rear driver control module / DC DC transformer
2Left window
3Body control module 8
*4A/C inverter
5Passive entry / Passive start / Battery 1
6Body control module 4
7Heated mirror
8Amplifier
9Rear defogger
10Glass break
*11Trailer connector
12OnStar (if equipped)
13Right window
14Electric parking brake
15-
16Trunk release
*17RUN relay
*18Logistics relay
*19-
20Rear window defogger relay
21Mirror window module
22-
23Canister vent
24Body control module 2
*25Rear vision camera
*26Front ventilated seats
*27SBZA / LDW / EOCM
*28Trailer / Sunshade
*29Rear heated seats
*30Semi-active damping system
*31Traction control module / Rear control drive module
32Theft deterrent module/Universal garage door opener / Rain sensor
*33UPA
*34Radio / DVD
35Exhaust valve
*36Trailer
37Fuel pump / Fuel system control module
*38Exhaust valve
39-
*40Exhaust valve
*41Run/Crank 2
*42Memory seat module
43Body control module 3
44-
45Battery regulated voltage control
46Engine control module / Battery
47-
48-
*49Trailer module
50Door lock security
51Rear closure release
52Rear closure
53-
54Door lock security
55-
*56Fuel door
* Optional

2019

Engine Compartment Fuse Block

Cadillac CTS (2019): Engine compartment fuse box diagram

List of fuses in the Engine Compartment Fuse Block (2019)
Usage
1-
2-
3Passenger motorized seat belt
4-
5-
6Driver power seat
7-
9-
10-
11-
12-
13Passenger power seat
14-
15-
16-
17Headlamp washer
18-
19Antilock brake system pump
20Antilock brake system valve
21-
22Driver motorized seat belt
26-
27Heated seat 2
28Reverse lock out
29Adaptive forward lighting, Automatic headlamp leveling / Pedestrian protection
30-
31Passenger window switch
32-
33Sunroof
34Front wiper
35Steering column lock
36Rear bussed electrical center / Ignition
37Malfunction Indicator Lamp / Ignition
38Aeroshutter
39O2 sensor / Emissions
40Ignition coil even / O2 sensor
41Ignition coil odd
42Engine control module
43-
44-
45Washer
48Instrument panel / Body / Ignition
49Fuel system control module / Ignition
50Heated steering wheel
51Engine control module / Ignition
52Transmission control module / Ignition
53Coolant pump
55-
56Transmission control module
64Adaptive headlamp leveling
65Left HID headlamp
66Right HID headlamp
67Left/Right high-beam headlamp
68Headlamp leveling motor
69Horn
71Cooling fan
72Starter 2
73Brake vacuum pump
74Starter 1
75Air conditioning clutch
76-
Relays
8Headlamp washer
23Wiper control
24Wiper speed
25Engine control module
46Rear washer
47Front washer
54Coolant pump
57Low-beam headlamp relay
58High-beam headlamp
59Run/Crank
60Starter 2
61Vacuum pump
62Starter 1
63Air conditioning control
70Horn
Instrument Panel Fuse Block

Cadillac CTS (2019): Instrument panel fuse box diagram

List of fuses in the Instrument Panel Fuse Block (2019)
Usage
4-
5-
6Tilt and telescopic steering column
8Data link connector
9Glovebox release
10Shunt
11Body control module 1
12Body control module 5
13Body control module 6
14-
15Body control module 7
16Transmission control module
17-
18-
19Auxiliary power outlet
20Lighter
21Wireless charger
22Sensing diagnostic module / Automatic occupant sensing
23Radio / DVD / Heating, ventilation / Air conditioning control
24Display
25Heated steering wheel
26Wireless charger
27Steering wheel controls
28-
29Visor vanity lamp
30-
31Retained accessory power / Accessory
32-
33Front heating, ventilation / Air conditioning control blower
Circuit Breakers
CB1Auxiliary power outlet
CB7-
Relays
K10Retained accessory power / Accessory
K605Logistics
K644Retained accessory power / Accessory / Glovebox release
Rear Compartment Fuse Block

Cadillac CTS (2019): Rear compartment fuse box diagram

List of fuses in the Rear Compartment Fuse Block (2019)
Usage
1Rear driver control module / DC DC transformer
2Left window
3Body control module 8
4Alternate current inverter
5Passive entry / Passive start / Battery 1
6Body control module 4
7Heated mirrors
8Amplifier
9Rear window defogger
10Glass break
11Trailer connector
12OnStar (if equipped)
13Right window
14Electric parking brake
15-
16Trunk release
19Logistics
21Mirror window module
22-
23Canister vent
24Body control module 2
25Rear vision camera
26Front ventilated seats
27Side blind zone alert / Lane departure warning / External object calculating module
28Trailer / Sunshade
29Rear heated seats
30Semi-active damping system
31Transfer case control module / Rear control drive module
32Theft module / Universal garage door opener / Rain sensor
33Ultrasonic parking assist
34Radio/DVD
35Exhaust valve (V-series)
36Trailer
37Fuel system control module
38Fuel pump prime / Exhaust valve (V-series)
39-
42Memory seat module
43Body control module 3
44-
45Battery regulated voltage control
46Engine control module / Battery
47-
48-
49Trailer module
53-
55-
Relays
17Trailer
18Logistics
20Rear window defogger
40Run crank 2 (V-series)
41Fuel pump prime / Run crank 2
50Child door lock security
51Rear closure
52Rear closure 2
54Door lock security
56Fuel door