Ford Bronco / F-150 Engine Compartment Fuse Box Diagram - Relay Locations

This document is a layout diagram of the engine compartment fuse box for a Ford truck (referenced applications include the Bronco and the Lightning). It shows the physical arrangement of fuse positions and relays inside the underhood fuse/relay panel. Fuse positions are identified by letters A through U, arranged in two columns: A, B, C, D, E, F, G, H, I, J, K on the left side (plus two unlabeled positions at the top) and L, M, N, O, P, Q, R, S, T, U in the center column. Along the right side of the panel are five relay positions: the top relay is labeled '4 WABS Relay #2 (Bronco only) / Fog Lamp Relay (Lightning only)', followed by the Trailer Marker Lamps Relay, Horn Relay, Fuel Pump Relay, and PCM Power Relay. The diagram does not include amperage ratings or circuit descriptions for the lettered fuse positions; those details are presumably covered in a companion fuse description chart. A reader can use this diagram to locate a specific fuse or relay position within the engine compartment fuse box, particularly the fuel pump, horn, PCM power, trailer marker lamp, and 4WABS/fog lamp relays.