2015 Cadillac XTS Repair Fuses | Fuse Diagram and Relay Guide

2015 Cadillac XTS Repair Fuses | Fuse Diagram and Relay Guide

Here is our in-depth guide to fixing fuses for the 2015 Cadillac XTS. We go deep into the complex world of fuses and fuse box diagrams to give you the know-how to fix electrical problems in your opulent car. Every astute car owner must comprehend the subtleties of the fuse system, which is crucial in protecting the vehicle’s electrical components. We will delve into the complexities of the 2015 Cadillac XTS fuse box layout in this comprehensive analysis, interpreting the fuse box diagram to clarify the distinct roles that each fuse serves. Join us on this journey to discover the mysteries behind fuses, whether you’re an experienced automotive enthusiast or a do-it-yourself enthusiast ready to take on electrical challenges. With this knowledge, you can make sure that your Cadillac XTS continues to perform at its best every time you drive.

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Electrical System

Electrical System Overload
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. Replace a bad fuse with a new one of the identical size and rating. If there is a problem on the road and a fuse needs to be replaced, the same amperage fuse can be borrowed. Choose some feature of the vehicle that is not needed to use and replace it as soon as possible.

Headlamp Wiring
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.

Windshield Wipers
If the wiper motor overheats due to heavy snow or ice, the windshield wipers will stop. The wiper function is available immediately after the wiper switch is set to off, and back to on. To protect the wiper motor from overheating, the wipers may slow down when the windshield is dry for a long period. If a period of dry operation, or little moisture, exceeds 10 minutes, the wipers may switch to intermittent operation, and remain there. When moisture is again detected on the windshield, wiper operation will return to the operator-selected speed. Although the circuit is protected from electrical overload, overload due to heavy snow or ice may cause wiper linkage damage. Always clear ice and heavy snow from the windshield before using the windshield wipers. If the overload is caused by an electrical problem and not snow or ice, be sure to get it fixed.

Fuses and Circuit Breakers
The wiring circuits in the vehicle are protected from short circuits by a combination of fuses and circuit breakers. This greatly reduces the chance of damage caused by electrical problems. To check a fuse, look at the silver-coloured 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. Fuses of the same amperage can be temporarily borrowed from another fuse location if a fuse goes out. Replace the fuse as soon as possible. To identify and check fuses, circuit breakers, and relays. 

Engine Compartment Fuse Block

To remove the fuse block cover, press the clips on the cover and lift it straight up.

Caution
Spilling liquid on any electrical component of the vehicle may damage it. Always keep the covers on any electrical component.

The vehicle may not be equipped with all of the fuses, relays, and features shown.

J-Case Fuses	Usage
6	Wiper
12	Vacuum Pump

J-Case Fuses	Usage
21	Rear Power Windows
22	Sunroof
24	Front Power Windows

J-Case Fuses	Usage
25	Retained Accessory Power
26	Antilock Brake System Pump
27	Electric Parking Brake
28	Rear Window Defogger
41	Brake Vacuum Assist Pump
42	Cooling Fan K2
44	Headlamp Washer
45	Cooling Fan K1

Mini Fuses	Usage
1	Transmission Control Module – Battery
2	Engine Control Module Battery

Mini Fuses	Usage
3	Air Conditioning Compressor Clutch
4	Not Used
5	Engine Control Module Run/Crank
8	Ignition Coils – Even (Six-Cylinder Engine)
9	Ignition Coils – Odd (Six Cylinder Engine)
10	Engine Control Module – Switched Battery (from Engine Control Module Relay)
11	Six-Cylinder Engine: Post Catalytic Converter Oxygen Sensor Heater, Mass Air Flow Sensor, Flex Fuel Sensor

Mini Fuses	Usage
13	Run/Crank for Transmission Control Module and Chassis Control Module
14	Right Rear Heated Seat
15	Left Rear Heated Seat
16	Not Used
17	Body Run/Crank
18	Autonet Run/Crank (Aftermarket)
20	Not Used
23	Variable Effort Steering
29	Passive Entry/ Passive Start Module – Battery
30	All-Wheel Drive Module

Mini Fuses	Usage
31	Left Front Heated Seat
32	Body Control Module 6
33	Right Front Heated Seat
34	Antilock Brake System Valves
35	Amplifier
37	Right High Beam
38	Left High Beam
46	Cooling Fan Relay
47	Six Cylinder Engine: Pre Catalytic Converter Oxygen Sensor Heater, Canister Purge Solenoid
48	Coolant Pump
49	Right High-Intensity Discharge Headlamp

Mini Fuses	Usage
50	Left High-Intensity Discharge Headlamp
51	Horn
52	Cluster Run/Crank
53	Run/Crank for Inside Rearview Mirror, Rear Vision Camera
54	Run/Crank for Heating, Ventilation, and Air Conditioning
55	Outside Rearview Mirror, Front Window Switches
56	Windshield Washer
57	Steering Column Lock
60	Heated Mirror
62	Massage Memory Bolster

Mini Fuses	Usage
64	Adaptive Forward Lighting (AFL) Module – Battery
66	Trunk Release
67	Chassis Control Module
69	Regulated Voltage Control Sensor
70	Vent Canister Solenoid
71	Memory Module

Mini Relays	Usage
7	Engine Control Module
9	Cooling Fan
13	Cooling Fan
15	Run/Crank
17	Rear Window Defogger

Micro Relays	Usage
1	Air Conditioning Compressor Clutch
2	Starter
4	Wiper Speed
5	Wiper Control
8	Not Used
10	Cooling Fan
11	Headlamp Washer
14	Headlamp Low Beam

Instrument Panel Fuse Block

The instrument panel fuse block is in the instrument panel, on the driver’s side of the vehicle. To access the fuses, open the fuse panel door
by pulling down at the top.
Press in on the sides of the door to release it from the instrument panel.
Pull the door toward you to release it from the hinge.

The vehicle may not be equipped with all of the fuses, relays, and features shown.

Fuses	Usage
1	Telematics (OnStar)
2	Body Control Module 7
3	Body Control Module 5
4	Radio

Fuses	Usage
5	Infotainment and Center Stack Displays, Head-up Display, Instrument Cluster, Rear Seat Entertainment
6	Power Outlet 1
7	Power Outlet 2
8	Body Control Module 1
9	Body Control Module 4
10	Body Control Module 8 (J-Case Fuse)
11	Front Heater Ventilation Air Conditioning/Blower (J-Case Fuse)

Fuses	Usage
12	Passenger Seat (Circuit Breaker)
13	Driver Seat (Circuit Breaker)
14	Diagnostic Link Connector
15	Airbag
16	Glove Box
17	Heater Ventilation Air Conditioning Controller
18	Logistics
19	Electronic Steering Column Lock
20	Automatic Occupant Sensing
21	Spare

Fuses	Usage
22	Steering Wheel Controls/Backlight
23	Body Control Module 3
24	Body Control Module 2
25	Power Steering Column
26	AC/DC Inverter

Relays	Usage
R1	Glove Box
R2	Logistics
R3	Retained Accessory Power/Accessory

Rear Compartment FuseBlock

The rear compartment fuse block is behind a cover on the passenger side of the rear compartment.

The vehicle may not be equipped with all of the fuses, relays, and features shown.

Fuse Number	Usage
F01	Not Used
F02	Spare
F03	Not Used

Fuse Number	Usage
F04	Leveling Compressor
F05	Not Used
F06	Not Used
F07	Not Used

Fuse Number	Usage
F08	Front Courtesy Lamps
F09	Not Used
F10	Not Used
F11	Not Used
F12	Not Used
F13	Not Used
F14	Not Used
F15	Not Used
F16	Not Used
F17	Not Used
F18	Semi-active Damping System
F19	Universal Garage Door Opener/Rain, Light, and Humidity Sensor

Fuse Number	Usage
F20	Shunt
F21	Side Blind Zone
F22	Not Used
F23	All-Wheel Drive
F24	Not Used
F25	Not Used
F26	Not Used
F27	Not Used
F28	Not Used
F29	Not Used
F30	Front Camera
F31	Rear Parking Assist/ Lane Departure Warning
F32	Not Used
F33	Not Used

Fuse Number	Usage
F34	Not Used
F35	Not Used
F36	Not Used
F37	Not Used

Relays	Usage
K1	Not Used
K2	Front Courtesy Lamps Relay
K3	Leveling Compressor Relay
K4	Logic

Repairing the fuses of  2015 Cadillac XTS

Fuse repairs can be simple, but it’s crucial to keep in mind that a blown fuse is a sign of an electrical circuit issue that needs to be looked into. This is a basic guide to fuse repair:

1. Safety First
   • Make sure the circuit’s power is off at the main electrical panel before beginning. To prevent electrical shock or fire hazards, this is essential.
2. Find the Fuse Box
   • Locate the electrical panel or fuse box that contains the blown fuse. This is usually located in residential buildings’ garages, utility rooms, or basements. There might occasionally be several panels, one for each floor of the building
3. Determine the Fused Out
   • Look for the fuse that appears discolored or has a broken metal strip. This means that the fuse needs to be changed because it has blown. The amperage rating of fuses is typically marked on the fuse, so you can identify the type to replace it with.
4. Remove the Blown Fuse
   • Carefully take the blown fuse out of its socket using an insulated pair of pliers or a fuse puller. Because there might still be live electrical currents in the panel, avoid using your fingers to remove the fuse.
5. Replace the Fuse

   • Put a fresh fuse in the empty socket with the same amperage rating. Verify that it is seated firmly and that no gaps or loose connections exist.

6. Turn On the Power
   • After inserting the new fuse, turn on the circuit’s power by flipping the matching switch or turning the main electrical panel’s breaker back on.
7. Test the Circuit
   • Make sure the circuit is operating correctly by testing it after the power has been restored. To ensure they are operating as intended, check the lights, outlets, and appliances that are connected to the circuit.
8. Address the Underlying Issue
   • If the fuse blows again soon after being replaced, there may be a short circuit or overload in the electrical circuit. It’s crucial to seek the advice of a licensed electrician in these situations to identify and resolve the issue.
9. Regular Maintenance
   • Check your electrical panel or fuse box for wear, corrosion, or damage regularly. As soon as possible, replace any damaged fuses to guarantee the dependability and safety of your electrical system.

 

FAQs

Useful Links

View Full PDF: 2015 Cadillac XTS Owner’s Manual | Auto User Guide

2023 Cadillac XT5 Specs, Price, Features, Mileage (Brochure)

2015 Cadillac XTS Display Setting | Screen Messages Guide