The Cadillac Escalade GMT 900, manufactured from 2007 to 2014, is a large luxury SUV renowned for its powerful performance, spacious interior, and advanced features. Its electrical system, which includes the fuse box and relay components, plays a crucial role in maintaining the vehicle’s operational efficiency and reliability.
In the Cadillac Escalade GMT 900, the fuse box contains various fuses that protect electrical circuits throughout the vehicle. These circuits power essential components such as the engine control module, lighting systems, climate control, entertainment features, and more. Fuses are designed to break the circuit in the event of an electrical overload or short circuit, preventing damage to associated systems.
Relays in the Cadillac Escalade GMT 900 serve as electrically operated switches that control high-current circuits. They facilitate the activation and deactivation of functions such as the starter motor, fuel pump, air conditioning compressor, and power windows or seats. Efficient relay operation ensures optimal power distribution and reliable performance of the vehicle’s electrical systems.
Regular inspection and maintenance of the fuse box and relays are essential to ensure the Cadillac Escalade GMT 900 operates smoothly. This includes checking fuses for signs of wear or damage, ensuring relay connections are secure, and promptly addressing any electrical issues that may arise. Proper care of these components helps maintain the vehicle’s electrical integrity, enhancing safety and driving satisfaction in the Cadillac Escalade GMT 900 (2007-2014).
MUST READ: DYI – How to Check Car Fuses?
(2007-2014) Cadillac Escalade GMT 900 fuse box and relay with Diagram
WARNING
- Never replace a fuse with one that has a higher amperage rating.
- A fuse with a too-high amperage could damage the electrical part and cause a fire.
- On no account should fuses be repaired (e.g. patched up with tin foil or wire) as this may cause serious damage elsewhere in the electrical circuit or cause a fire.
- If a fuse blows repeatedly, do not keep replacing it. Instead, have the cause for the repeated short circuit or overload tracked and fixed.
- Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
Cadillac Escalade GMT 900 2007-2014 fuse assignment
- Cigar lighter / power outlet fuses in the Cadillac Escalade are located in the Instrument panel fuse box (see fuses №. 16 “AUX PWR” (Accessory Power Outlets) and №. 2 “AUX PWR2” (Rear Cargo Area Power Outlets)) and in the Engine compartment fuse box – fuse №. 53 (Cigarette Lighter, Auxiliary Power Outlet).
Year of production: 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
Passenger compartment fuse box
Fuse Box Location
It is located on the driver’s side of the instrument panel, behind the cover.
Fuse box diagram (2007)
Assignment of the fuses in the instrument panel (2007)
| Name | Description |
|---|---|
| LT DR | Driver’s Side Power Window Circuit Breaker |
| REAR SEAT | Rear Seats |
| AUX PWR2 | Rear Cargo Area Power Outlets |
| SWC BKLT | Steering Wheel Controls Backlight |
| DDM | Driver Door Module |
| CTSY | Dome Lamps, Driver’s Side Turn Signal |
| LT STOP TRN | Driver’s Side Turn Signal, Stoplamp |
| DIM | Instrument Panel Back Lighting |
| RT STOP TRN | Passenger’s Side Turn Signal, Stoplamp |
| BCM | Body Control Module |
| UNLCK2 | Power Door Lock 2 (Unlock Feature) |
| LCK2 | Power Door Lock 2 (Lock Feature) |
| STOP LAMPS | Stoplamps, Center-High Mounted Stoplamp |
| REAR HVAC | Rear Climate Controls |
| PDM | Passenger Door Module, Universal Home Remote System |
| AUX PWR | Accessory Power Outlets |
| IS LPS | Interior Lamps |
| UNLCK1 | Power Door Lock 1 (Unlock Feature) |
| OBS DET | Ultrasonic Rear Parking Assist, Power Liftgate |
| LCK1 | Power Door Lock 1 (Lock Feature) |
| REAR WPR | Rear Wiper |
| COOLED SEATS | Cooled Seats |
| DSM | Driver Seat Module, Remote Keyless Entry System |
| Harness Connector | |
| LT DR | Driver’s Door Harness Connection |
| BODY | Harness Connector |
| BODY | Harness Connector |
Fuse box diagram (2008-2014)
Assignment of the fuses in the instrument panel (2008-2014)
| № | Description |
|---|---|
| 1 | Rear Seats |
| 2 | Rear Cargo Area Power Outlets |
| 3 | Steering Wheel Controls Backlight |
| 4 | Driver Door Module |
| 5 | Dome Lamps, Driver’s Side Turn Signal |
| 6 | Driver’s Side Turn Signal, Stoplamp |
| 7 | Instrument Panel Back Lighting |
| 8 | Passenger’s Side Turn Signal, Stoplamp |
| 9 | 2008-2010: Passenger Door Module 2011-2014: 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 | 2008-2010: Not used 2011-2014: 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 | 2008-2010: Not used 2011-2014: Cooled Seats |
| 25 | Driver Seat Module, Remote Keyless Entry System |
| 26 | 2008-2010: Not used 2011-2014: Driver Power Door Lock (Unlock Feature) |
| LT DR | 2011-2014: Driver Side Power Window Circuit Breaker |
| Harness Connector | |
| LT DR | Driver’s Door Harness Connection |
| BODY | Harness Connector |
| BODY | Harness Connector |
Center Instrument Panel Fuse Block
This unit is located underneath the instrument panel, to the left of the steering column.Center Instrument Panel Block
| Name | Description |
|---|---|
| Harness Connectors: | |
| 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 |
| BRAKE CLUTCH | Brake Clutch Harness Connector |
| SEO/UPFITTER | Special Equipment Option Upfitter Harness Connector |
| Circuit Breakers: | |
| CB1 | Passenger’s Side Power Window Circuit Breaker |
| CB2 | Passenger’s Seat Circuit Breaker |
| CB3 | Driver’s Seat Circuit Breaker |
| CB4 | Not Used |
Fuse Box in the engine compartment
Fuse Box Location
Fuse box diagram (2007)
Assignment of the fuses and relays in the engine compartment (2007)
| № | Description |
|---|---|
| Fuses | |
| 1 | Not Used |
| 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 | Right Trailer Stop/Turn Lamp |
| 7 | Front Washer |
| 8 | Oxygen Sensors |
| 9 | Anti-lock Brakes System 2 |
| 10 | Trailer Back-up Lamps |
| 11 | Driver’s High Intensity Discharge Lamp |
| 12 | Engine Control Module (Battery) |
| 13 | Fuel Injectors, Ignition Coils (Right Side) |
| 14 | Transmission Control Module (Battery) |
| 15 | Vehicle Back-up Lamps |
| 16 | Passenger’s Side High Intensity Discharge Lamp |
| 17 | Air Conditioning Compressor |
| 18 | Oxygen Sensors |
| 19 | Transmission Controls (Ignition) |
| 20 | Fuel Pump |
| 21 | Not Used |
| 22 | Rear Washer |
| 23 | Fuel Injectors, Ignition Coils (Left Side) |
| 24 | Trailer Park Lamps |
| 25 | Driver’s Side Park Lamps |
| 26 | Passenger’s Side Park Lamps |
| 27 | Fog Lamps |
| 28 | Horn |
| 29 | Passenger’s Side High-Beam Headlamp Solenoid |
| 30 | Daytime Running Lamps |
| 31 | Driver’s Side High-Beam Headlamp Solenoid |
| 32 | Not Used |
| 33 | Sunroof |
| 34 | Key Ignition System, Theft Deterrent System |
| 35 | Windshield Wiper |
| 36 | SEO B2 Upfitter Usage (Battery) |
| 37 | Electric Adjustable Pedals |
| 38 | Climate Controls (Battery) |
| 39 | Airbag System (Ignition) |
| 40 | Amplifier |
| 41 | Audio System |
| 42 | Not Used |
| 43 | Miscellaneous (Ignition), Rear Vision Camera (If Equipped), Cooled Seats, Cruise Control |
| 44 | Liftgate Release |
| 45 | OnStar®, Rear Seat Entertainment Display |
| 46 | Instrument Panel Cluster |
| 47 | Not Used |
| 48 | Heated Steering Wheel |
| 49 | Auxiliary Climate Control (Ignition), Compass-Temperature Mirror |
| 50 | Rear Defogger |
| 51 | Airbag System (Battery) |
| 52 | SEO B1 Upfitter Usage (Battery) |
| 53 | Cigarette Lighter, Auxiliary Power Outlet |
| 54 | Automatic Level Control Compressor Relay, SEO Upfitter Usage |
| 55 | Climate Controls (Ignition) |
| 56 | Engine Control Module, Secondary Fuel Pump (Ignition) |
| J-Case Fuses | |
| 60 | Cooling Fan 1 |
| 61 | Automatic Level Control Compressor |
| 62 | Not Used |
| 63 | Cooling Fan 2 |
| 64 | Anti-lock Brake System 1 |
| 65 | Starter |
| 66 | Stud 2 (Trailer Brakes) |
| 67 | Left Bussed Electrical Center 1 |
| 68 | Electric Running Boards |
| 69 | Heated Windshield Washer System |
| 70 | Not Used |
| 71 | Stud 1 (Trailer Connector Battery Power) |
| 72 | Mid-Bussed Electrical Center 1 |
| 73 | Climate Control Blower |
| 74 | Power Liftgate Module |
| 75 | Left Bussed Electrical Center 2 |
| Relays | |
| FAN HI | Cooling Fan High Speed |
| FAN LO | Cooling Fan Low Speed |
| ENG EXH VLV | Not used |
| 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 |
Fuse box diagram (2008-2014)
Assignment of the fuses and relays in the engine compartment (2008-2014)
| № | Description |
|---|---|
| Fuses | |
| 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 | Driver’s Side Park Lamps |
| 27 | Passenger’s 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 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 |
| 45 | Airbag System (Battery) |
| 46 | Instrument Panel Cluster |
| 47 | 2008-2010: Power Take-Off 2011-2014: Not used |
| 48 | 2008-2010: Auxiliary Climate Control (Ignition), Compass-Temperature Mirror 2011-2014: 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 | 2008-2010: Automatic Level Control Compressor Relay, SEO Upfitter Usage 2011-2014: Automatic Level Control Compressor Relay |
| 55 | Climate Controls (Ignition) |
| 56 | Engine Control Module, Secondary Fuel Pump (Ignition) |
| J-Case Fuses | |
| 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 | 2008-2010: Four-Wheel Drive System 2011-2014: 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 | |
| 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 |
Conclusion
For owners and enthusiasts of classic Cadillac Escalade GMT 900 2007-2014, understanding the fuse box and relay systems is essential for vehicle maintenance. Regular inspection and maintenance of these components helped ensure the vehicle’s longevity and reliability, preserving its status as a symbol of Cadillac’s craftsmanship and innovation in the automotive industry during that era.
