Where is the back-up light switch located?

The diagram shows the back-up light switch is located on the transmission.

Where is the brake light switch located?

Per the diagram, the brake light switch is on the brake pedal bracket, near connectors C1015 and C1016.

Which trucks have fog lights according to this diagram?

The callout states fog lights are for F-100 through F-350 only; the diagram also shows a fog light switch and fog light relay.

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

1979 Bronco/F-series exterior lights wiring schematic on truck body cutaway

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Exterior lights wiring schematic over a truck body cutaway (Bronco/F-series): headlights, parking/marker/license, turn signals, emergency warning, backup and stop lights with switch locations.

AI caption August 2014 · Photo 12 of 48

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.

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Frequently asked questions

Where is the back-up light switch located?: The diagram shows the back-up light switch is located on the transmission.
Where is the brake light switch located?: Per the diagram, the brake light switch is on the brake pedal bracket, near connectors C1015 and C1016.
Which trucks have fog lights according to this diagram?: The callout states fog lights are for F-100 through F-350 only; the diagram also shows a fog light switch and fog light relay.
What circuits are included in the Exterior Lights system?: Headlights; parking, side/roof marker lights, license lights; emergency warning, turn signals, backup lights, stop lights; and the seat belt reminder buzzer.
What does frequent lamp or fuse burnout indicate?: The note says frequent burning out of lamps or fuses indicates a severe voltage problem that should be repaired immediately.