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 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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1978-1979 Ford Bronco Wiring Diagram - Fuse Panel Legend & Tailgate Window

1978-1979 Ford Bronco Wiring Diagram (Haynes Fig. 10.131)

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Haynes 1978/1979 Bronco wiring schematic showing power distribution, in-line connectors and fuse links with wire color and gauge callouts.

AI caption May 2007 · Photo 99 of 126

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.