Check the interior and engine bay power distribution units first when any electrical system fails, as circuits are split between these two locations with different load capacities. The cabin unit typically supports lighting, infotainment, and accessory systems.
The under-hood distribution assembly handles high-current circuits such as cooling fans, starter control, and charging system. Ratings here often range from 30A to 70A, using larger cartridge-style links and relays placed in dedicated slots.
Refer to the layout chart printed on each cover to match slot numbers with circuit functions. This avoids removing the wrong component and helps identify the exact protection element tied to the malfunctioning system.
Use a multimeter or test light to verify voltage on both terminals of each link before removal. A working element shows power continuity, while a failed one interrupts the circuit and requires replacement with the same amperage rating.
2019 F150 Fuse Panel Diagram Guide
Match each slot number with the layout chart under the cover before removing any protective element, since multiple circuits share similar amperage ratings but serve different systems.
The interior distribution unit manages lower-load circuits such as infotainment, interior lighting, and accessory ports, typically ranging from 5A to 30A depending on the component.
Under-hood power distribution handles high-current systems including radiator fans, starter relay, and charging lines, often using 30A to 70A cartridge-style links.
Check voltage on both terminals of each element using a multimeter; power on only one side indicates a failed strip that must be replaced with an identical rating.
Relays positioned рядом control switching for major systems like fuel delivery and cooling fans, and identical units can be swapped temporarily to confirm malfunction.
Repeated failure of the same protective element points to wiring damage or a faulty component drawing excess current rather than a simple blown link.
Keep the layout chart visible during inspection to quickly identify circuit assignments and avoid disconnecting working systems.
Store spare links in common ratings inside the vehicle to handle sudden electrical issues without tools beyond a puller or insulated pliers.
Interior and Engine Bay Fuse Panel Locations and Access Steps for 2019 F150
Open the passenger side footwell area and remove the trim cover to access the interior distribution unit, which is mounted behind a protective panel near the kick panel.
- Pull the cover outward using the built-in notch
- Release retaining clips carefully
- Locate rows of blade-style protective elements
This interior unit supports cabin electronics such as infotainment, power outlets, and lighting circuits, organized in clearly numbered rows for quick identification.
Engine Bay Access
Lift the hood and move toward the battery area, where the main power distribution assembly is secured in a large plastic housing.
- Press locking tabs on both sides
- Lift the cover vertically
- Keep the printed layout visible for reference
Under-hood distribution contains high-current elements for systems like cooling fans and charging circuits, along with relays grouped by function.
Safe Handling Steps
Ensure ignition is off before touching any contacts, as several circuits remain live and can cause shorting if metal tools are used improperly.
Use a puller tool or insulated pliers to remove components, applying steady upward force to avoid damaging terminals or loosening connections.
After completing work, press both covers firmly until all clips engage, ensuring proper sealing against moisture and debris.