Ford Mustang (1971 – 1973) – fuse box diagram

Year of production: 1971, 1972, 1973

Fuse box

Fuse	Ampere Rating [A]	Description
1	20	Horns, cigar lighter
2	14	Courtesy, dome, map, luggage & glove compartment lights, seat belt latch relay, clock feed, ignition key warning, headlight buzzer
3	4	Instrument panel, cluster, ash tray & cigar lighter illumination
4	14	Heater & defroster
	30	Air conditioning
5	4	Instrument & Cluster Lamps, Radio, Heater and A/C Controls, Clock, Ash Tray Lamp
6	15	Back-up lights, radio, windshield washer, turn signal warning system
7	20	Accessory feed, power window relay and rear window defroster

Circuit Breakers

Fuse	Circuit(s) protected	Ampere ratting [A]	Location
1	Headlight Circuit	12	Circuit breaker integral with lighting switch
2	Parking, Marker, License, Tail, & Shift Quadrant Lights, Headlight Warning Relay	15	Circuit breaker integral with lighting switch
3	Stop Lights & Emergency Warning System	15	Circuit breaker on relay panel above glove box
4	Power Windows, Top, Seats & Seat Back Latch, Engine Compartment Light	20	Circuit breaker on starter relay
5	Windshield Wiper	7	Circuit breaker integral wiper switch
6	Power Window & Seat Motors	—	Circuit breaker in motors

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.