Fuse Diagram and Relay: 2012 Cadillac Escalade Fuses Guide
The electrical system in the 2012 Cadillac Escalade is very complicated and relies on fuses and breakers to work right. To keep and fix electrical problems in this luxury SUV, you need to know how the fuse diagram and relay layout are set up. Fuses are safety devices that stop electrical overloads that could damage parts. On the other hand, relays are electrical signal-controlled switches that let low-power signals control high-power circuits. By fully understanding the 2012 Cadillac Escalade fuse diagram and relay setup, owners and techs can quickly fix electrical issues and make sure the car runs at its best and is safe to drive. Knowing so much about the Cadillac Escalade’s fuses and relays makes it easier to find the right parts for systems like lights, climate control, and more. For this high-tech car to last a long time and work reliably, the electrical parts must be properly maintained.
2023 Cadillac Escalade Specs, Price, Features, Mileage and Torque
Fuses and Circuit Breakers
If the vehicle is a hybrid, see the hybrid supplement for more information. The wiring circuits in the vehicle are protected from short circuits by a combination of fuses, circuit breakers, and fusible thermal links. 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 feature of your vehicle that you can get along without– like the radio or accessory power outlet– and use its fuse, if it is the correct amperage. Replace it as soon as you can.
Engine Compartment Fuse Block
The Engine Compartment Fuse Block is located in the engine compartment, on the driver’s side of the vehicle. Lift the cover for access to the fuse/relay block. If the vehicle is a hybrid, see the hybrid supplement for more information.
Notice: Spilling liquid on any electrical component on the vehicle may damage it. Always keep the covers on any electrical component. To remove fuses, hold the end of the fuse between your thumb and index finger and pull straight out.
The vehicle may not be equipped with all of the fuses, relays, and features shown.
| Fuses | Usage |
| 1 | Right Trailer Stop/ Turn Lamp |
|
2 |
Electronic Stability Suspension Control, Automatic Level Control Exhaust |
| 3 | Left Trailer Stop/ Turn Lamp |
| 4 | Engine Controls |
|
5 |
Engine Control Module, Throttle Control |
| 6 | Trailer Brake Controller |
| 7 | Front Washer |
| 8 | Oxygen Sensors |
| 9 | Antilock Brakes System 2 |
| Fuses | Usage |
| 10 | Trailer Back-up Lamps |
| 11 | Driver Side
Low-Beam Headlamp |
| 12 | Engine Control Module (Battery) |
| 13 | Fuel Injectors, Ignition Coils (Right Side) |
| 14 | Transmission Control Module (Battery) |
| 15 | Vehicle Back-up Lamps |
| 16 | Passenger Side
Low-Beam Headlamp |
| 17 | Air Conditioning Compressor |
| 18 | Oxygen Sensors |
| 19 | Transmission Controls (Ignition) |
| 20 | Fuel Pump |
| Fuses | Usage |
| 21 | Fuel System Control Module |
| 22 | Headlamp Washer |
| 23 | Rear Windshield Washer |
| 24 | Fuel Injectors, Ignition Coils (Left Side) |
| 25 | Trailer Parking Lamps |
| 26 | Driver Side Parking Lamps |
| 27 | Passenger Side Parking Lamps |
| 28 | Fog Lamps |
| 29 | Horn |
| 30 | Passenger Side
High-Beam Headlamp |
|
31 |
Daytime Running Lamps (DRL)
(If Equipped) |
| 32 | Driver Side
High-Beam Headlamp |
| Fuses | Usage |
| 33 | Daytime Running Lamps 2 (If Equipped) |
| 34 | Sunroof |
|
35 |
Key Ignition System, Theft Deterrent System |
| 36 | Windshield Wiper |
| 37 | SEO B2 Upfitter Usage (Battery) |
| 38 | Electric Adjustable Pedals |
| 39 | Climate Controls (Battery) |
| 40 | Airbag System (Ignition) |
| 41 | Amplifier |
| 42 | Audio System |
|
43 |
Miscellaneous (Ignition), Cruise Control |
| 44 | Liftgate Release |
| Fuses | Usage |
| 45 | Airbag System (Battery) |
| 46 | Instrument Panel Cluster |
| 47 | Not Used |
| 48 | Auxiliary Climate Control (Ignition) |
| 49 | Center High-Mounted Stoplamp (CHMSL) |
| 50 | Rear Defogger |
| 51 | Heated Mirrors |
| 52 | SEO B1 Upfitter Usage (Battery) |
|
53 |
Accessory Power Outlet, Cigarette Lighter (If Equipped) |
|
54 |
Automatic Level Control Compressor Relay |
| 55 | Climate Controls (Ignition) |
| Fuses | Usage |
|
56 |
Engine Control Module, Secondary Fuel Pump (Ignition) |
| J-Case Fuses | Usage |
| 57 | Cooling Fan 1 |
| 58 | Automatic Level Control Compressor |
| 59 | Heavy Duty Antilock Braking System |
| 60 | Cooling Fan 2 |
| 61 | Antilock Brake System 1 |
| 62 | Starter |
| 63 | Stud 2 (Trailer Brakes) |
| 64 | Left Bussed Electrical Center 1 |
| 65 | Electric Running Boards |
| J-Case Fuses | Usage |
| 66 | Not Used |
| 67 | Transfer Case |
|
68 |
Stud 1 (Trailer Connector Battery Power) |
| 69 | Mid-Bussed Electrical Center 1 |
| 70 | Climate Control Blower |
| 71 | Power Liftgate Module |
| 72 | Left Bussed Electrical Center 2 |
| Relays | Usage |
| FAN HI | Cooling Fan High-Speed |
| FAN LO | Cooling Fan Low Speed |
| Relays | Usage |
| FAN CNTRL | Cooling Fan Control |
| HDLP LO/HID | Low-Beam Headlamp |
| FOG LAMP | Front Fog Lamps |
| A/C CMPRSR | Air Conditioning Compressor |
| STARTER | Starter |
| PWR/TRN | Powertrain |
| FUEL PMP | Fuel Pump |
| PRK LAMP | Parking Lamps |
| REAR DEFOG | Rear Defogger |
| RUN/ CRNK | Switched Power |
Instrument Panel Fuse Block
The instrument panel fuse block access door is located on the driver-side edge of the instrument panel. Pull off the cover to access the fuse block.
The vehicle may not be equipped with all of the fuses, relays, and features shown.
| Fuses | Usage |
| 1 | Rear Seats |
| 2 | Rear Accessory Power Outlet |
| Fuses | Usage |
| 3 | Steering Wheel Controls Backlight |
| 4 | Driver Door Module |
| 5 | Dome Lamps, Driver Side Turn Signal |
| Fuses | Usage |
| 6 | Driver Side Turn Signal, Stoplamp |
| 7 | Instrument Panel Back Lighting |
| 8 | Passenger Side Turn Signal, Stoplamp |
| 9 | Passenger Door Module, Driver Unlock |
| 10 | Power Door Lock 2 (Unlock Feature) |
| 11 | Power Door Lock 2 (Lock Feature) |
|
12 |
Stoplamps, Center High‐Mounted Stoplamp |
| 13 | Rear Climate Controls |
| 14 | Power Mirror |
| 15 | Body Control Module (BCM) |
| 16 | Accessory Power Outlets |
| Fuses | Usage |
| 17 | Interior Lamps |
| 18 | Power Door Lock 1 (Unlock Feature) |
| 19 | Rear Seat Entertainment |
|
20 |
Ultrasonic Rear Parking Assist, Power Liftgate |
| 21 | Power Door Lock 1 (Lock Feature) |
| 22 | Driver Information Center (DIC) |
| 23 | Rear Wiper |
| 24 | Cooled Seats |
|
25 |
Driver Seat Module, Remote Keyless Entry System |
| 26 | Driver Power Door Lock (Unlock Feature) |
| Circuit Breaker | Usage |
|
LT DR |
Driver Side Power Window Circuit Breaker |
| Harness Connector |
Usage |
|
LT DR |
Driver Door Harness Connection |
| BODY | Harness Connector |
| BODY | Harness Connector |
Top View
| Harness Connector |
Usage |
| BODY 2 | Body Harness Connector 2 |
| BODY 1 | Body Harness Connector 1 |
| BODY 3 | Body Harness Connector 3 |
|
HEADLINER 3 |
Headliner Harness Connector 3 |
| Harness Connector |
Usage |
|
HEADLINER 2 |
Headliner Harness Connector 2 |
|
HEADLINER 1 |
Headliner Harness Connector 1 |
|
SEO/UPFITTER |
Special Equipment Option Upfitter Harness Connector |
| Circuit Breaker | Usage |
|
CB1 |
Passenger Side Power Window Circuit Breaker |
| CB2 | Passenger Seat Circuit Breaker |
| CB3 | Driver Seat Circuit Breaker |
| CB4 | Rear Sliding Window |
How to Replace Fuse in 2012 Cadillac Escalade
Materials Needed:
- Fuse puller tool or a pair of needle-nose pliers
- Optional: Multimeter for testing continuity of fuses (if available)
- Optional: Spare fuses of various amperage ratings for emergencies
- Optional: Gloves and safety glasses for added protection during the replacement process
Instructions:
- Fuse box location Escalade: The Escalade fuse box guide in the 2012 Cadillac Escalade is typically situated in one of two locations: under the dashboard on the driver’s side or in the engine compartment near the battery.
- Turn Off Ignition and Disconnect Battery: Before proceeding, ensure the ignition is turned off, and disconnect the vehicle’s battery to prevent electrical shocks or damage during the replacement process.
- Remove the Blown Fuse: Use the fuse puller tool or a pair of needle-nose pliers to grasp the blown fuse firmly and gently pull it straight out of its socket. Be careful not to damage surrounding components.
- Insert the Replacement Fuse: Take the replacement fuse of the appropriate amperage rating and carefully insert it into the vacant fuse socket, ensuring it fits snugly in place.
- Reconnect the Battery and Test: Once the replacement fuse is securely in position, reconnect the vehicle’s battery and turn on the ignition. Test the electrical component associated with the replaced fuse to ensure proper functionality.
Tips:
- Always use a replacement fuse with the same amperage rating as the blown fuse to avoid electrical problems or damage to the vehicle’s electrical system.
- Keep spare fuses of various amperage ratings in your vehicle for emergencies, as well as a fuse puller tool or a pair of needle-nose pliers for easy replacement.
- Periodically inspect the fuses in your 2012 Cadillac Escalade for signs of wear or damage, and replace any blown fuses promptly to prevent further issues.
- If you encounter recurring fuse failures or experience other electrical problems, consider seeking professional assistance to diagnose and address underlying issues effectively.
FAQs
There are three different fuse boxes in the 2012 Cadillac Escalade: Engine Compartment Fuse Block, Instrument Panel Fuse Block, and Driver’s Side Fuse Block.
Fuses are protective devices that prevent electrical overloads, which could cause damage to the vehicle’s components. They act as a safety measure to prevent electrical fires and other hazards.
Relays are switches controlled by electrical signals, allowing high-power circuits to be controlled by low-power signals. They are used to control various electrical components, such as headlights, power windows, and more.
There are 31 fuses in the Engine Compartment Fuse Block of the 2012 Cadillac Escalade.
Fuse MINI10A 1 in the Instrument Panel Fuse Block is responsible for the engine controls, engine control module, and throttle control.
Fuse MINI15A 4 in the Instrument Panel Fuse Block is responsible for the engine controls, engine control module, and throttle control.
Fuses in vehicles like the 2012 Cadillac Escalade act as protective devices, preventing electrical overloads that could damage components.
Relays in vehicles like the 2012 Cadillac Escalade are switches controlled by electrical signals, allowing high-power circuits to be controlled by low-power signals.
Understanding the fuse diagram and relay setup specific to a vehicle like the 2012 Cadillac Escalade is crucial for maintaining and troubleshooting electrical issues effectively.
Proper knowledge of fuses and relays in a vehicle like the 2012 Cadillac Escalade aids in identifying components for various systems such as lighting, climate control, and more.
Proper maintenance of fuses and relays is essential for ensuring longevity and reliability in sophisticated vehicles like the 2012 Cadillac Escalade.
Fuses act as protective devices in vehicles like the 2012 Cadillac Escalade, preventing electrical overloads that could potentially damage components.
Relays function as switches controlled by electrical signals, enabling high-power circuits to be controlled by low-power signals within vehicles like the 2012 Cadillac Escalade.
Useful Links
2023 Cadillac Escalade Specs, Price, Features, Mileage and Torque
Warning Indicators: 2012 Cadillac Escalade Instrument Cluster Guide