1978-1979 Ford Bronco Wiring Diagram - Fuse Panel Legend & Tailgate Window
Reference · 1978-1979 BroncoAll 116 wiring diagrams
Haynes 1978/1979 Bronco wiring schematic showing power distribution, in-line connectors and fuse links with wire color and gauge callouts.
Part of 1978-1979 Ford Bronco Wiring Diagrams
This is page 262 from a Haynes manual showing factory-style wiring diagrams for the Ford Bronco. The top half is Fig. 10.131, the continuation of the 1978 Bronco wiring diagram, covering the tailgate power window circuit: power distribution splices (S-201, S-303), the T/G window regulator control switch at the instrument panel, the accessory safety relay, the key-actuated rear window regulator control switch, tailgate limit switch, and tailgate power window motor, with wire circuit numbers and colors (517 BK-W, 400 BL-BK, 405 P-BL, 404 P-GR, 407 T-BK, 333 Y-R, 334 R-Y, 57 BK) and connectors C-1902 through C-1911. The bottom half is Fig. 10.132, the 1979 Bronco wiring diagram, including a fuse panel layout (positions F-1 to F-12) with a complete fuse legend listing amperages and circuits (e.g., F3 35A heater/AC, F8 20A emergency flasher/stoplamps, F9 15A turn signal flasher, F12 7.5A radio), plus power distribution wiring showing the starter motor relay, standard and auxiliary 12-volt batteries, accessory safety relay (auxiliary battery), fuse links, junction block, and ignition switch positions (Start, Run, Off, Accessory). Readers can identify fuse functions, wire colors, splice/connector numbers, and battery/charging distribution for these model years.
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Frequently asked questions
- What are the fuse positions and amp ratings on a 1979 Ford Bronco fuse panel?
- Per the legend: F1 blank; F2 3A PRNDL lamp, cluster & panel illumination; F3 35A heater or A/C; F4 7.5A seat belt; F5 7.5A emission solenoid; F6 blank; F7 15A dome, cargo, courtesy, glove & underhood lamps, cigar lighter; F8 20A emergency warning flasher, stoplamps; F9 15A turn signal flasher; F10 20A accessory feeds, speed control, heated backlight relay, marker lamp relay, dual battery relay, axle control (4WD indicator lamp); F11 15A back-up lamps, windshield washer pump; F12 7.5A radio.
- Which fuse controls the turn signal flasher on the 1979 Bronco?
- Fuse F9, rated 15 amp, feeds the turn signal flasher.
- What components are in the 1978 Bronco tailgate power window circuit?
- The diagram shows the T/G window regulator control switch (instrument panel), an accessory safety relay, a key-actuated rear window regulator control switch, a tailgate limit switch, and the tailgate power window motor, connected through connectors C-1902 to C-1911.
- What are the ignition switch positions shown on the 1979 Bronco diagram?
- S-Start, R-Run, 0-Off, and A-Accy (accessory).
- Does the 1979 Bronco diagram show dual batteries?
- Yes: it shows a 12-volt standard battery and a 12-volt auxiliary battery, with an accessory safety relay for the auxiliary battery and a starter motor relay.
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