1974 Ford Bronco Wiring Diagram - Rear Stop/Turn, Marker, License & Heater Blower

This document is one page of a factory-style wiring diagram, uploaded as part of a 1974 Ford Bronco documentation set (filename 74wiring3.jpg). It covers the rear lighting circuits and the heater blower circuit. On the left and center, the diagram traces circuits 283 (yellow-black) and 282 (green) from the buss bar through connectors C-233 and C-320 to the left-hand and right-hand rear stop and turn signal lamps, with circuit 285 (brown) feeding the L.H. and R.H. marker lamps via 984 BR wires through connectors C-501/C-502 and C-503/C-504, grounded at G-501 and G-502. The license lamp is fed by 285 BR through connector C-505 and grounds at G-503. On the right side, the heater blower circuit runs from the buss bar through fuse F 1 (20 AMP), wire 399 BR, connector C-506, the heater blower switch, connector C-507, the blower motor resistor (with red and orange wires), connectors C-508 and C-509, and a black wire to the heater blower motor, which grounds at G-504 via a 57 BK wire. The page grid is marked with columns 33-39 and rows A-F. A reader can identify wire colors, circuit numbers, connector locations, fuse rating, and ground points for these systems.