Understanding the fuse box locations and diagrams in your 2007 Cadillac Escalade is crucial for diagnosing and resolving electrical issues. Fuses protect your vehicle’s electrical circuits from overloads, and knowing their locations can save you time and money on repairs. While the term “OBD2 fuse” isn’t always explicitly labeled, fuses are integral to the operation of the On-Board Diagnostics system. This guide will walk you through the fuse box locations in your 2007 Cadillac Escalade and help you identify fuses related to the OBD2 system and other vital components.
Locating the Fuse Boxes in Your 2007 Cadillac Escalade
The 2007 Cadillac Escalade is equipped with three distinct fuse boxes, each serving different circuits throughout the vehicle. These are strategically placed for accessibility:
Underhood Fuse Box
The primary fuse box is located under the hood of your Escalade. It’s typically found on the driver’s side of the engine compartment, near the battery. This box houses fuses and relays that protect critical engine and powertrain components, as well as some major vehicle systems.
Type | Description |
---|---|
Fuse MINI 30A | 1 Not Used |
Fuse MINI 30A | 2 Electronic Stability Suspensión Control, Automatic Level Control Exhaust |
Fuse MINI 10A | 3 Left Trailer Stop/Turn Lamp |
Fuse MINI 15A | 4 Engine Controls |
Fuse MINI 15A | 5 Engine Control Module, Throttle Control |
Fuse MINI 10A | 6 Right Trailer Stop/Turn Lamp |
Fuse MINI 15A | 7 Front Washer |
Fuse MINI 10A | 8 Oxygen Sensors |
Fuse MINI 25A | 9 Anti-lock Brakes System 2 |
Fuse MINI 10A | 10 Trailer Back-up Lamps |
Fuse MINI 20A | 11 Driver’s High Intensity Discharge Lamp View problems with the headlight fuse… |
Fuse MINI 10A | 12 Engine Control Module (Battery) |
Fuse MINI 20A | 13 Fuel Injectors, Ignition Coils (Right Side) |
Fuse MINI 10A | 14 Transmission Control Module (Battery) |
Fuse MINI 10A | 15 Vehicle Back-up Lamps |
Fuse MINI 20A | 16 Passenger’s Side High Intensity Discharge Lamp View problems with the headlight fuse… |
Fuse MINI 10A | 17 Air Conditioning Compressor View problems with the air conditioning fuse… |
Fuse MINI 10A | 18 Oxygen Sensors |
Fuse MINI 15A | 19 Transmission Controls (Ignition) |
Fuse MINI 20A | 20 Fuel Pump View problems with the fuel pump fuse… |
Fuse MINI 20A | 21 Not Used |
Fuse MINI 15A | 22 Rear Washer |
Fuse MINI 20A | 23 Fuel Injectors, Ignition Coils (Left Side) |
Fuse MINI 15A | 24 Trailer Park Lamps |
Fuse MINI 15A | 25 Driver’s Side Park Lamps |
Fuse MINI 15A | 26 Passenger’s Side Park Lamps |
Fuse MINI 15A | 27 Fog Lamps View problems with the fog light fuse… |
Fuse MINI 15A | 28 Horn View problems with the horn fuse… |
Fuse MINI 10A | 29 Passenger’s Side High-Beam Headlamp Solenoid |
Fuse MINI 15A | 30 Daytime Running Lamps View problems with the headlight fuse… |
Fuse MINI 10A | 31 Driver’s Side High-Beam Headlamp Solenoid |
Fuse MINI 15A | 32 Not Used |
Fuse MINI 30A | 33 Sunroof View problems with the sunroof fuse… |
Fuse MINI 2A | 34 Key Ignition System, Theft Deterrent System |
Fuse MINI 25A | 35 Windshield Wiper |
Fuse MINI 30A | 36 SEO B2 Upfitter Usage (Battery) |
Fuse MINI 15A | 37 Electric Adjustable Pedals |
Fuse MINI 10A | 38 Climate Controls (Battery) |
Fuse MINI 10A | 39 Airbag System (Ignition) View problems with the starter fuse… |
Fuse MINI 30A | 40 Amplifier |
Fuse MINI 15A | 41 Audio System View problems with the radio fuse… |
Fuse MINI 15A | 42 Not Used |
Fuse MINI 10A | 43 Miscellaneous (Ignition), Rear Vision Camera [If Equipped], Cooled Seats, Cruise Control |
Fuse MINI 15A | 44 Liftgate Release |
Fuse MINI 15A | 45 OnStar, Rear Seat Entertainment Display |
Fuse MINI 10A | 46 Instrument Panel Cluster |
Fuse MINI 15A | 47 Not Used |
Fuse MINI 10A | 48 Heated Steering Wheel |
Fuse MINI 10A | 49 Auxiliary Climate Control (Ignition), Compass-Temperature Mirror |
Fuse MINI 30A | 50 Rear Defogger |
Fuse MINI 15A | 51 Airbag System (Battery) |
Fuse MINI 15A | 52 SEO B1 Upfitter Usage (Battery) |
Fuse MINI 20A | 53 Cigarette Lighter, Auxiliary Power Outlet View problems with the cigarette lighter fuse… |
Fuse MINI 10A | 54 Automatic Level Control Compressor Relay, SEO Upfitter Usage |
Fuse MINI 10A | 55 Climate Controls (Ignition) View problems with the starter fuse… |
Fuse MINI 15A | 56 Engine Control Module, Secondary Fuel Pump (Ignition) |
Fuse FMX/JCase 40A | 60 Cooling Fan 1 View problems with the cooling fan fuse… |
Fuse FMX/JCase 40A | 61 Automatic Level Control Compressor |
Fuse FMX/JCase 60A | 62 Not Used |
Fuse FMX/JCase 40A | 63 Cooling Fan 2 View problems with the cooling fan fuse… |
Fuse FMX/JCase 40A | 64 Anti-lock Brake System 1 |
Fuse FMX/JCase 40A | 65 Starter View problems with the starter fuse… |
Fuse FMX/JCase 30A | 66 Stud 2 (Trailer Brakes) |
Fuse FMX/JCase 60A | 67 Left Bussed Electrical Center 1 |
Fuse FMX/JCase 30A | 68 Electric Running Boards |
Fuse FMX/JCase 60A | 69 Heated Windshield Washer System |
Fuse FMX/JCase 30A | 70 Not Used |
Fuse FMX/JCase 40A | 71 Stud 1 (Trailer Connector Battery Power) |
Fuse FMX/JCase 60A | 72 Mid-Bussed Electrical Center 1 |
Fuse FMX/JCase 40A | 73 Climate Control Blower |
Fuse FMX/JCase 30A | 74 Power Liftgate Module |
Fuse FMX/JCase 60A | 75 Left Bussed Electrical Center 2 |
Relay | FAN HI Cooling Fan High Speed |
Relay | FAN LO Cooling Fan Low Speed |
Relay | FAN CNTRL Cooling Fan Control |
Relay | HDLP LO/HID Hi Intensity Discharge Headlamp |
Relay | FOG LAMP Front Fog Lamps |
Relay | A/C CMPRSR Air Conditioning Compressor View problems with the air conditioning relay… |
Relay | STRTR Starter View problems with the starter relay… |
Relay | PWR/TRN Powertrain |
Relay | FUEL PMP Fuel Pump View problems with the fuel pump relay… |
Relay | PRK LAMP Parking Lamps |
Relay | REAR DEFOG Rear Defogger |
Relay | RUN/CRANK Switched Power |



Instrument Panel Fuse Box
The second fuse box is located inside the Escalade, within the instrument panel. Its precise location is usually under the dashboard on the driver’s side. This fuse box primarily manages circuits for interior components, including power windows, lighting, and the instrument cluster.
Type | Description |
---|---|
Circuit breaker | LT DR_CB Driver’s Side Power Window Circuit Breaker |
Fuse MINI 20A | REAR SEAT Rear Seats |
Fuse MINI 20A | AUX PWR2 Rear Cargo Area Power Outlets |
Fuse MINI 2A | SWC BKLT Steering Wheel Controls Backlight |
Fuse MINI 15A | DDM Driver Door Module |
Fuse MINI 15A | CTSY Dome Lamps, Driver’s Side Turn Signal |
Fuse MINI 15A | LT STOP TRN Driver’s Side Turn Signal, Stoplamp View problems with the brake light fuse… |
Fuse MINI 10A | DIM Instrument Panel Back Lighting |
Fuse MINI 15A | RT STOP TRN Passenger’s Side Turn Signal, Stoplamp View problems with the brake light fuse… |
Fuse MINI 10A | BCM Body Control Module |
Fuse MINI 15A | UNLCK2 Power Door Lock 2 (Unlock Feature) |
Fuse MINI 15A | LCK2 Power Door Lock 2 (Lock Feature) |
Fuse MINI 15A | STOP LAMPS Stoplamps, Center-High Mounted Stoplamp View problems with the brake light fuse… |
Fuse MINI 30A | REAR HVAC Rear Climate Controls |
Fuse MINI 15A | PDM Passenger Door Module, Universal Home Remote System |
Fuse MINI 20A | AUX PWR Accessory Power Outlets View problems with the cigarette lighter fuse… |
Fuse MINI 10A | IS LPS Interior Lamps |
Fuse MINI 15A | UNLCK1 Power Door Lock 1 (Unlock Feature) |
Fuse MINI 10A | OBS DET Ultrasonic Rear Parking Assist, Power Liftgate |
Fuse MINI 15A | LCK1 Power Door Lock 1 (Lock Feature) |
Fuse MINI 25A | REAR WPR Rear Wiper |
Fuse MINI 30A | COOLED SEATS Cooled Seats |
Fuse MINI 10A | DSM Driver Seat Module, Remote Keyless Entry System |
Connector | LT DR Driver’s Door Harness Connection |
Connector | BODY1 Harness Connector |
Connector | BODY2 Harness Connector |
Center Instrument Panel Fuse Block
The third fuse box in the 2007 Escalade is located in the center instrument panel. This is often accessible from the passenger side footwell or behind the central console. This box tends to manage fuses for convenience features and some body control functions.
Type | Description |
---|---|
Connector | BODY 2 Body Harness Connector 2 |
Connector | BODY 1 Body Harness Connector 1 |
Connector | BODY 3 Body Harness Connector 3 |
Connector | HEADLINER 3 Headliner Harness Connector 3 |
Connector | HEADLINER 2 Headliner Harness Connector 2 |
Connector | HEADLINER 1 Headliner Harness Connector 1 |
Connector | SEO/UPFITTER Special Equipment Option Upfitter Harness Connector |
Circuit breaker ATO | CB1 Passenger’s Side Power Window Circuit Breaker |
Circuit breaker ATO | CB2 Passenger’s Seat Circuit Breaker |
Circuit breaker ATO | CB3 Driver’s Seat Circuit Breaker |
Connector | CONNECTOR 3 Brake Clutch Harness Connector |
Identifying Fuses Related to OBD2 Functionality
While none of the fuses are explicitly labeled “OBD2,” several fuses are critical for the operation of the systems that the OBD2 port relies on. If you’re experiencing issues with your OBD2 scanner connecting or retrieving data, check these fuses in the Underhood Fuse Box:
- Fuse 5 (15A): Engine Control Module, Throttle Control: This fuse powers the Engine Control Module (ECM), a central computer that communicates diagnostic information through the OBD2 port. A blown fuse here can disrupt OBD2 communication.
- Fuse 12 (10A): Engine Control Module (Battery): This provides constant battery power to the ECM, which is essential for memory functions and potentially OBD2 readiness tests.
- Fuse 14 (10A): Transmission Control Module (Battery): The Transmission Control Module (TCM) also communicates diagnostic data through the OBD2 port. A problem here could affect transmission-related diagnostic readings.
- Fuse 56 (15A): Engine Control Module, Secondary Fuel Pump (Ignition): This fuse, while also for the fuel pump, is linked to the ECM and its ignition-related functions, which could impact OBD2 data accessibility.
It’s also worth checking Fuse 46 (10A) Instrument Panel Cluster in the Underhood Fuse Box. While primarily for the instrument cluster, issues with the cluster can sometimes indirectly affect diagnostic communication.
Important Note: Always refer to your 2007 Cadillac Escalade owner’s manual for the most accurate fuse box diagrams and fuse designations. Fuse layouts can sometimes vary slightly based on specific vehicle options and production dates.
By understanding the fuse box locations and the fuses related to engine and control modules, you can effectively troubleshoot potential OBD2 communication issues and other electrical problems in your 2007 Cadillac Escalade. Remember to replace any blown fuses with the correct amperage rating to ensure proper circuit protection.