Jonathan Yarden Mar 25, 2021 · 5 min. read
In this article you will find a description of fuses and relays Cadillac,
with photos of block diagrams and their locations.
Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.
Year of production: 2011, 2012, 2013, 2014
Instrument Panel Fuse Block
The instrument panel fuse block access door is located on the driverâs outside edge of the instrument panel.
| Fuses | Usage |
| 1 | Rear Seats |
| 2 | Rear Cargo Area Power Outlets |
| 3 | Steering Wheel Controls Backlight |
| 4 | Driver Door Module |
| 5 | Dome Lamps, Driverâs Side Turn Signal |
| 6 | Driverâs Side Turn Signal, Stoplamp |
| 7 | Instrument Panel Back Lighting |
| 8 | Passengerâs 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 |
| 17 | Interior Lamps |
| 18 | Power Door Lock 1 (Unlock Feature) |
| 17 | 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) |
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| Circuit Breaker | Usage |
| LT DR | Driver Side Power Window Circuit Breaker |
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| Harness Connector | Usage |
| LT DR | Driverâs Door Harness Connection |
| BODY | Harness Connector |
| BODY | Harness Connector |
Center Instrument Panel Fuse Block
The center instrument panel fuse block is located underneath the instrument panel, to the left of the steering column.
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 |
| HEADLINER 2 | Headliner Harness Connector 2 |
| HEADLINER 1 | Headliner Harness Connector 1 |
| SEO/UPFITTER | Special Equipment Option Upfitter Harness Connector |
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| Circuit Breaker | Usage |
| CB1 | Passengerâs Side Power Window Circuit Breaker |
| CB2 | Passengerâs Seat Circuit Breaker |
| CB3 | Driverâs Seat Circuit Breaker |
| CB4 | Not Used |
Underhood Fuse Block
The underhood fuse block is located in the engine compartment, on the driverâs side of the vehicle. To access the fuse/relay block, push in on the tabs on the end of the fuse/relay block cover and lift.
| 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 | Anti-lock Brakes System 2 |
| 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 |
| 21 | Fuel System Control Module |
| 22 | Headlamp Washers |
| 23 | Rear Windshield Washer |
| 24 | Fuel Injectors, Ignition Coils (Left Side) |
| 25 | Trailer Park Lamps |
| 26 | Driverâs Side Park Lamps |
| 27 | Passengerâs Side Park 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 |
| 33 | Daytime Running Lights 2Â (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 |
| 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 Mirror |
| 52 | SEO B1 Upfitter Usage (Battery) |
| 53 | Cigarette Lighter, Auxiliary Power Outlet |
| 54 | Automatic Level Control Compressor Relay |
| 55 | Climate Controls (Ignition) |
| 56 | Engine Control Module, Secondary Fuel Pump (Ignition) |
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| J-Case Fuses | Usage |
| 57 | Cooling Fan 1 |
| 58 | Automatic Level Control Compressor |
| 59 | Heavy Duty Antilock Brake System |
| 60 | Cooling Fan 2 |
| 61 | Anti-lock Brake System 1 |
| 62 | Starter |
| 63 | Stud 2 (Trailer Brakes) |
| 64 | Left Bussed Electrical Center 1 |
| 65 | Electric Running Boards |
| 66 | Heated Windshield Washer System |
| 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 |
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| Relays | Usage |
| FAN HI | Cooling Fan High Speed |
| FAN LO | Cooling Fan Low Speed |
| FAN CNTRL | Cooling Fan Control |
| HDLP LO/HID | Hi Intensity Discharge Headlamp |
| FOG LAMP | Front Fog Lamps |
| A/C CMPRSR | Air Conditioning Compressor |
| STRTR | Starter |
| PWR/TRN | Powertrain |
| FUEL PMP | Fuel Pump |
| PRK LAMP | Parking Lamps |
| REAR DEFOG | Rear Defogger |
| RUN/CRANK | Switched Power |
WARNING:Â Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
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