Ford Mustang (1974 - 1978) Fuse Box Diagram

Jonathan Yarden
Jonathan Yarden
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Year of production: 1974, 1975, 1976, 1977, 1978

Fuse box

Ford Mustang - fuse box diagram

Fuse Ampere Rating [A] Description
1 4 ’74-’75: Cluster, heater or air conditioner control, radio, ash tray, and clock lights
’76-’78: Instrument panel lamps
2 7,5 Oil, brakes, belts indicator lights, seat belt module, buzzer, throttle solenoid positioner, emission control solenoid (’76-’78)
3 6 Circuit breaker: Windshield wiper motor
4 15 Windshield washer pump, door ajar, park brake (’74-’75), headlight indicator lights (’74-’75), heater backlite control indicator light, anti-theft module, fuel monitor indicating lamp (’76-’78)
5 7,5 Radio/tape player
6 20 Horn, cigar lighter
7 15 Dome light, glove box, map, trunk, door, instrument panel, courtesy, headlights indicator lights.
Key, headlight warning buzzer, clock feed, anti-theft trigger, horn feed and seat belt module
8 15 Stop and emergency warning lights
9 15 Heater
30 ’74-’77: Air conditioner
35 ’78: Air conditioner
11 15 ’74-’75: Back-up lights
’76-’78: Back-up lamps and turn signal lamp

Circuit Breakers

Fuse Circuit(s) protected Ampere ratting [A] Location
1 ’74-’76: Headlight circuit and high beam indicator light (’76-’78) 18 Circuit breaker intergral with headlight switch
2 ’74-’75: Marker, license, tail lights, shift quadrant indicator light and headlights “ON” warning relay
’76-’78: Tail, park, license plate, side marker and automatic shift indicator lamps
15 Circuit breaker integral with headlight switch

 

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

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