2010 Cadillac DTS Fixing a Blown Fuse | Fuse Diagrams and Relay Guide

2010 Cadillac DTS Fixing a Blown Fuse | Fuse Diagrams and Relay Guide

The 2010 Cadillac DTS can have problems with fuses that may need to be found and fixed. These problems can be anything from blown fuses to problems with the switch for the fuel pump. To keep harm from getting worse, it is important to use the right amperage fuse for each part. Mechanics and car drivers have had fuses melt or blow, which meant they had to be replaced with fuses of different amperages. To make sure the electrical parts of the Cadillac DTS work right, they need to be properly diagnosed and plugs need to be replaced. If your DTS is having electricity problems, the first thing you should do is check and replace the fuses. This is a fairly easy and inexpensive task that you can do yourself. Remember to use fuses with the same amperage as the ones that blew, and if you need to, get help from an expert.

2024 Cadillac CT4 V-SERIES Specs, Price, Features, Mileage and Review

Electrical System

Add-On Electrical Equipment

Notice: Do not add anything electrical to the vehicle unless you check with your dealer/retailer first. Some electrical equipment can damage the vehicle and the damage would not be covered by the vehicle’s warranty. Some add-on electrical equipment can keep other components from working as they should.
Add-on equipment can drain the vehicle battery, even if the vehicle is not operating. The vehicle has an airbag system. Before attempting to add anything electrical to the vehicle, see Servicing Your Airbag-Equipped Vehicle on pages 2-72 and Adding Equipment to Your Airbag-Equipped Vehicle on pages 2-73.

Headlamp Wiring

The headlamp wiring system has four individual fuses. An electrical overload will cause the lamps to go on and off, or in some cases to remain off. If this happens, have the headlamp wiring checked right away.

Windshield Wiper Fuses

The windshield wiper motor is protected by an internal circuit breaker. If the wiper motor overheats due to heavy snow, the wipers will stop until the motor cools and will then restart.
A fuse powers the wiper motor. If the fuse blows, there is an electrical problem. Be sure to have it fixed.

Power Windows and Other Power Options

Circuit breakers in the fuse block protect the power windows and other power accessories. When the current load is too heavy, the circuit breaker opens and closes, protecting the circuit until the problem is fixed or goes away.

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 fires caused by electrical problems.
Look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure you replace a bad fuse with a new one of the identical size and rating.
If you ever have a problem on the road and don’t have a spare fuse, you can borrow one that has the same amperage. Just pick some features of the vehicle that you can get along without — like the radio or cigarette lighter — and use its fuse if it is the correct amperage. Replace it as soon as you can.

Underhood Fuse Block

The underhood fuse block is located on the passenger side of the engine compartment. Remove the fuse cover and secondary service cover to access the fuse block.
Notice: Spilling liquid on any electrical components on the vehicle may damage it. Always keep the covers on any electrical component.

Fuses	Usage
1	Engine Control Module (ECM), Crank
2	Fuel Injectors Odd
3	Fuel Injectors Even
4	Air Conditioning Clutch

Fuses	Usage
5	Air Injection Reactor (AIR) Solenoid
6	Oxygen Sensor
7	Emission Device
8	Transmission, Ignition 1

Fuses	Usage
9	Engine Control Module (ECM), Powertrain Control Module (PCM)
10	Climate Control System, Instrument Panel Cluster Ignition 1
11	Airbag System
12	Horn
13	Windshield Wiper
14	Fog Lamps
15	Right High-Beam Headlamp
16	Left High-Beam Headlamp
17	Left Low-Beam Headlamp
18	Right Low-Beam Headlamp
19	Windshield Washer Pump Motor
20	Left Front Cornering Lamp
21	Right Front Cornering Lamp
22	Air Pump (J-Case)
23	Antilock Brake System (ABS) (J-Case)

Fuses	Usage
24	Starter (J-Case)
25	Antilock Brake System (ABS) Motor (J-Case)
26	Cooling Fan 2 (J-Case)
27	Cooling Fan 1 (J-Case)

Relays	Usage
29	Powertrain
30	Starter
31	Cooling Fan 2
32	Cooling Fan 3
33	Cooling Fan 1
34	Air Conditioning Clutch
35	Air Injection Reactor (AIR) Solenoid
36	Ignition
37	Air Pump

Rear Underseat Fuse Block

The rear fuse block is located under the rear seat on the driver’s side. The rear seat cushion must be removed to access the rear fuse block.

Removing the Rear Seat Cushion
Notice: If you touch the exposed wires with the metal on the seat cushion, you could cause a short that could damage the battery and or wires.
Avoid contact between the rear seat and the fuse center whenever you remove or reinstall the rear seat. Do not remove covers from any of the covered parts, and do not store anything under the seats.
To remove the rear seat cushion, do the following:

1. Pull up on the front of the cushion to release the front hooks.
2. Pull the cushion up and out toward the front of the vehicle.

To access the fuse block, pull out and lift on the cover latch, located at the end of the fuse block, near the battery cable.

To reinstall the rear seat cushion, do the following: 

WARNING:
A safety belt that is not properly routed through the seat cushion or is twisted will not provide the protection needed in a crash. If the safety belt has not been routed through the seat cushion at all, it will not be there to work for the next passenger. The person sitting in that position could be badly injured. After reinstalling the seat cushion, always check to be sure that the safety belts are properly routed and are not twisted.

1. Buckle the center passenger position safety belt, then route the safety belts through the proper slots in the seat cushion. Do not let the safety belts get twisted.
2. Slide the rear of the cushion up and under the seatback so the rear-locating guides hook into the wire loops on the back frame.
3. With the seat cushion lowered, push rearward and then press down on the seat cushion until the spring locks on both ends engage.
4. Check to make sure the safety belts are properly routed and that no portion of any safety belt is trapped under the seat. Also, make sure the seat cushion is secured.

Fuses	Usage
1	Fuel Pump
2	Left Park Lamp
3	Run 3 – Rear Blower
4	Right Park Lamp

Fuses	Usage
5	Engine Control Module (ECM)/Transmission Control Module (TCM)
6	Memory Module
7	Right Park Lamp (optional)

Fuses	Usage
8	Steering Wheel Illumination
9	Front Heated/Cooled Seat Module
10	Run 2 – Heated/Cooled Seats
11	Rear Heated Seat Module
12	RPA Module
13	PASS-Key® III System
14	Unlock/Lock Module
15	Magnetic Ride Control
16	Not Used
17	Sunroof
18	Body Control Module (BCM) Dim
19	Body Control Module (BCM)
20	Run 1-Heated Steering Wheel
21	Ignition Switch
22	Driver Door Module
23	Rear Lumbar
24	Electronic Leveling Control Module
25	Body Control Module (Left Turn Signal)
26	Cigarette Lighter, Auxiliary Power Outlet

Fuses	Usage
27	Navigation (Optional)
28	Retained Accessory Power 1 (RAP)
29	Passenger Door Module
30	Sensing and Diagnostic Module
31	Accessory Power Outlets
32	Body Control Module (BCM) (Inadvertent)
33	Retained Accessory Power 2 (RAP)
34	Canister Vent Solenoid
35	Body Control Module (Courtesy)
36	Body Control Module (Right Turn Signal)
37	Trunk Release
38	Amplifier, Radio
39	Body Control Module (CHMSL)
40	Body Control Module
41	Stoplamp (optional)
42	OnStar® Module
43	Body Modules
44	Radio
45	Door Unlatch (optional)

Fuses	Usage
46	Rear Defogger (J-Case)
47	Electronic Leveling Control Compressor (J-Case)
48	Blower (J-Case) (optional)
49	Blower (J-Case) (optional)

Resistor	Usage
50	Terminating Resistor

Relays	Usage
51	Front Blower (optional)
52	Rear Defogger
53	Electronic Leveling Control Compressor
58	Park Lamps
59	Fuel Pump
60	License Plate Lamp (optional)
61	Right Park Lamp (optional)

Relays	Usage
62	Unlock
63	Lock
64	Run
65	Not Used
66	Door Unlatch (optional)
67	Trunk Release
68	Stoplamp (optional)
69	Overhead Lamps (optional)
70	Retained Accessory Power (RAP)

Circuit Breakers	Usage
54	Right Front Seat
55	Left Front Power Seat
56	Power Windows
57	Power Tilt Steering Wheel

HOW TO REPLACE Fuse in 2010 Cadillac DTS

Material:

• Replacement fuse(s) (matching the amperage rating of the blown fuse)
• Fuse puller tool (usually included in the fuse box)

Instructions:

1. Locate the Fuse Box: The fuse box in the 2010 Cadillac DTS is usually located in the engine compartment or under the dashboard on the driver’s side.
2. Turn Off Ignition: Before working on any electrical components, it’s essential to turn off the ignition and remove the key from the ignition switch to avoid any risk of electrical shock or damage.
3. Remove the Fuse: Using the fuse puller tool provided in the fuse box or a pair of needle-nose pliers, grip the blown fuse firmly and pull it straight out from its socket. Be careful not to damage the fuse box or surrounding components.
4. Inspect the Fuse: Examine the blown fuse to confirm that it’s indeed faulty. Look for signs of a broken filament or discoloration, indicating that the fuse has blown due to an electrical overload.
5. Select a Replacement Fuse: Make sure the replacement fuse matches the physical size and shape of the blown fuse to ensure compatibility with the fuse socket.
6. Insert the New Fuse: Take the replacement fuse and carefully push it into the empty fuse socket, ensuring it’s seated securely. Avoid forcing the fuse into place as this could damage the contacts or the fuse itself.
7. Test the Component: Once the new fuse is installed, turn the ignition back on and test the component that was previously malfunctioning to ensure it’s now functioning correctly. If the issue persists, there may be a deeper electrical problem that requires further inspection.

Tips:

• Always use replacement fuses with the correct amperage rating to avoid electrical damage to the vehicle.
• Keep spare fuses of various amperages in your vehicle for emergencies.
• If you’re unsure which fuse is causing the issue, you can systematically check and replace fuses one by one until you find the faulty one.
• If you’re still unable to locate the blown fuse or if the issue persists after replacement, consider seeking professional assistance from a certified mechanic or electrician.

FAQs

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2024 Cadillac CT4 V-SERIES Specs, Price, Features, Mileage and Review