
Cadillac XT4 2024 Fuse Box Info
Passenger compartment fuse box location:

The instrument panel fuse box is on the driver side of the instrument panel, between the steering wheel and the door.
Engine compartment fuse box location:

Fuse Box Diagram | Layout
Passenger compartment fuse box:
| Fuse/Relay N° | Functions | 
| 1 | Blower Motor | 
| 2 | ELM 1 – Exterior Lighting Module 1 | 
| 3 | Column Lock | 
| 4 | ELM 2 – Exterior Lighting Module 2 | 
| 5 | BCM 2 – Body Control Module 2 | 
| 6 | Amplifier | 
| 7 | Clock Spring | 
| 8 | DLC – Data Link Connector | 
| 9 | BCM 1 – Body Control Module 1/SIB – Shifter Interface Board | 
| 10 | Headliner/Auxiliary Switch | 
| 11 | Display and HVAC | 
| 12 | Steering Column Lock | 
| 13 | Video Driving Monitoring System (DMS)/Safety 2 | 
| 14 | RC MISC 3/ECM – Ride Control Miscellaneous 3/Electronic Control Module | 
| 15 | Rear Wiper | 
| 16 | Cargo APO – Cargo Auxiliary Power Outlet | 
| 17 | Sensing Diagnostic Module (SDM)/Safety 1 | 
| 18 | RC MISC 1/MISC 2 –Ride Control Miscellaneous 1/Miscellaneous 2 | 
| 19 | Exterior Lighting Module (ELM) TR6 | 
| 20 | Central Gateway Module(CGM)/Telematics (OnStar) | 
| 21 | - | 
| 22 | European Trailer | 
| 23 | Auxiliary Power Outlet (APO) Cigar | 
| 24 | Wireless Charger | 
| 25 | USB | 
| 26 | ELM 6 – Exterior Lighting Module 6 | 
| 27 | VCU AUX JACK – Vehicle Communication Unit Auxiliary Jack | 
| 28 | ELM 7– Exterior Lighting Module 7 | 
| 29 | - | 
| 30 | - | 
| 31 | BCM 3 – Body Control Module 3 | 
| 32 | HSWM – Heated Steering Wheel Module | 
| 33 | - | 
| 34 | STEERING CLMN ADJ MDL – Steering Column Adjacent Module | 
| 35 | Amplifier | 
| 36 | DC/DC BATT 2 | 
| 37 | - | 
| 38 | - | 
| 39 | BCM 4 – Body Control Module 4 | 
| 40 | - | 
| CB01 | Auxiliary Power Outlet (APO) Row 2 | 
| CB02 | Auxiliary Power Outlet (APO) Row 1 | 
Engine compartment fuse box:
| Fuse/Relay N° | Functions | 
| 1 | Spare | 
| 2 | Aeroshutter | 
| 3 | Spare | 
| 4 | Spare | 
| 5 | Spare | 
| 6 | - | 
| 7 | ECM 2 – Engine Control Module 2/ECM 3 – Engine Control Module 3 | 
| 8 | ECM MAIN – Engine Control Module Main | 
| 9 | - | 
| 10 | 
 OFF ENG -  | 
| 11 | OFF ENG 2/OFF ENG 1 | 
| 12 | CAC – Charge Air Cooler/ECM – Engine Control Module | 
| 13 | TCM – Transmission Control Module | 
| 14 | - | 
| 15 | - | 
| 16 | - | 
| 17 | A/C Control | 
| 18 | - | 
| 19 | Starter Pinion | 
| 20 | MCU – Microprocessor Control Unit | 
| 21 | - | 
| 22 | - | 
| 23 | - | 
| 24 | - | 
| 25 | Starter Motor | 
| 26 | Spare | 
| 27 | - | 
| 28 | - | 
| 29 | - | 
| 30 | - | 
| 31 | - | 
| 32 | Spare | 
| 33 | Spare | 
| 34 | ELM 5 – Exterior Lighting Module 5 | 
| 35 | Power Sounder | 
| 36 | ELM 4 – Exterior Lighting Module 4 | 
| 37 | ELM 3 – Exterior Lighting Module 3 | 
| 38 | MSM_E – Memory Seat Module | 
| 39 | BSM – Battery State Module | 
| 40 | 
 - Front Window Switch  | 
| 41 | 
 RDCM BATT 2 – Rear Drive Control Module Battery 2 -  | 
| 42 | Headlamp Right and Headlamp Left | 
| 43 | FRT HTD SEAT MDL – Front Heated Seat Module | 
| 44 | RFAM & AFL/AHL/RDCM BAT 2 – Radio Frequency Actuator Module and Adaptive Forward Lighting/Automatic Headlamp Leveling/Rear Drive Control Module Battery 2 | 
| 46 | - | 
| 47 | - | 
| 48 | DC DC BAT 2 – Direct Current Direct Current Battery 2 | 
| 49 | - | 
| 50 | MTR WDW LIFTER LT – Motor Window Lifter Left | 
| 51 | - | 
| 52 | Passenger Power Seat | 
| 53 | - | 
| 54 | TIM 1 – Trailer Interface Module 1 | 
| 55 | TIM 2 – Trailer Interface Module 2 | 
| 56 | Trailer Park Lamps | 
| 57 | RDCM BATT 1 – Rear Drive Control Module Battery 1 | 
| 58 | Driver Power Seat | 
| 59 | EBCM – Electronic Brake Control Module | 
| 60 | Horn | 
| 61 | Rear Defog | 
| 62 | Front Wiper | 
| 63 | Power Tailgate | 
| 64 | MTR WDW LIFTER RT – Motor Window Lifter Right | 
| 65 | - | 
| 66 | Sunroof | 
| 67 | Trailer Run | 
| 68 | Spare | 
| 69 | Spare | 
| 70 | - | 
| 71 | - | 
| 72 | FTZM – Fuel Tank Zone Module | 
| 73 | Handsfree Closure | 
| 74 | - | 
| 75 | Spare | 
| 76 | Spare | 
| 77 | Spare | 
| 78 | Trailer Stop/Turn Left and Right | 
| 79 | TCM (DC to DC) – Transmission Control Module | 
| 80 | - | 
| 81 | SADS – Semi Active Dampening Suspension | 
| 82 | - | 
| 83 | Washer Pump | 





