1979 Ford Bronco/F100-F350 Exterior Lights Wiring Location Diagram

This page (page 12) from a Ford truck electrical reference set covers the Exterior Lights system, listing the circuits it includes: headlights; parking, side/roof marker lights and license lights; emergency warning, turn signals, backup lights and stop lights; and the seat belt reminder buzzer. The main content is an isometric illustration of a Ford pickup truck showing the physical routing of the exterior lighting wiring harness (drawn in red dashed/dotted lines) through the body. Callouts identify component locations: roof marker lights, right- and left-hand side marker lights, license plate lights, headlight switch, emergency flasher, turn signal flasher, fog light switch and fog light relay, back-up light switch (on transmission), brake light switch on the brake pedal bracket, fuse panel, and the front parking light/turn signal/emergency warning lamps. Numerous inline connector locations are labeled, including C306, C701, C801, C901, C1002, C1015, C1016, C1017, C1204, C1209, C1220, C1306, and C1307. A note states that fog lights apply to F-100 through F-350 only, and a caution notes that frequent burning out of lamps or fuses indicates a severe voltage problem needing immediate repair. Readers can learn where exterior lighting components and harness connectors are physically located on the truck.