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1973-74 Ford Bronco Fuse Box Diagram – Fuse Panel & Circuit Breaker Chart

Ford Bronco fuses and circuit breakers chart: 20A heater/defroster, 14A turn signal/back-up/radio/washer, 2A instrument lamps, 15A courtesy/cigar lighter, 20A emergency flasher, plus headlamp/horn circuit breaker specs.

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This is page 52 ("Maintenance") from an early-1970s Ford Bronco owner's manual, uploaded as part of a multi-page scan set. The top of the page concludes a "Tire and Tire Care" section covering trailer towing: single-clamp hitches are not acceptable, heavier trailers (up to 2,000 pounds) require reference to a table, tongue weight should be about 10 percent of loaded trailer weight, and an IMPORTANT note warns that added front-end equipment such as a snow plow winch must not exceed the Gross Axle Weight Rating. The main content is the "Fuses and Circuit Breakers" section, which includes a diagram of the fuse panel (located in the glove box to the left of the door) with five numbered fuse positions: 1 – 20 amp Heater/Defroster; 2 – 14 amp Turn Signal Flasher, Back-Up Lamps, Radio and Windshield Washer System; 3 – 2 amp Instrument Panel Lamps; 4 – 15 amp Courtesy Lamp (Instrument Panel) and Cigar Lighter; 5 – 20 amp Emergency Warning Flasher System. A "Circuit Breaker Specifications" table lists a 12 amp circuit breaker for headlamps and a 15 amp circuit breaker for horns, stop, marker, license, tail and parking lamps, both integral with the lighting switch.

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Frequently asked questions

Where is the fuse panel located on this early Ford Bronco?
The diagram states the fuse panel is located in the glove box, to the left of the door.
What fuse protects the heater-defroster circuit?
Fuse position 1, a 20 AMP fuse, protects the Heater – Defroster.
What does the 14 amp fuse cover?
Fuse position 2 (14 AMP) covers the Turn Signal Flasher, Back-Up Lamps, Radio and Windshield Washer System.
What circuit breakers are used and where are they located?
A 12 amp circuit breaker for the headlamps and a 15 amp circuit breaker for horns, stop, marker, license, tail and parking lamps; both are integral with the lighting switch.
What are the trailer towing guidelines on this page?
Single-clamp hitches are not acceptable; heavier trailers (up to 2,000 pounds) require referring to a table; tongue weight should be about 10 percent of the loaded trailer weight; added front-end equipment (like a snow plow winch) must not exceed the Gross Axle Weight Rating.

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