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Ford Mustang (1979 - 1982) - fuse box diagram

avatar Jonathan Yarden Oct 06, 2021 · 5 min. read

In this article you will find a description of fuses and relays Ford, with photos of block diagrams and their locations. Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.

Year of production: 1979, 1980, 1981, 1982

Fuse box

Ford Mustang - fuse box diagram

Fuse Ampere Rating [A] Description
1 5 ’79: Not Used
’80-’81: Illumination Lamps, Cluster, Clock, Radio Ash Receptacle, Heater & A/C Controls, PRNDL
’82: Not Used
2 10 Warning Lights, Dual Brake, Oil Pressure, Water Temperature, Seat Belt and Carburetor Throttle Emission Control Solenoid, Carburetor Circuits, Tachometer, Turbo Boost Indicators, Low Fuel Warning
3 — —
4 20 ’79: Not Used
’80-’82: Horn, Cigar Lighter, Clock in Console
5 20 ’79: Horn, Cigar Lighter
’80-’82: Not Used
6 20 ’79: Not Used
’80-’81: Choke Heater
5 ’82: Instrument Illumination
7 15 Courtesy Lights, Dome, Map, Glove Box, Luggage Compartment, Clock, Radio, Ignition Key Warning Buzzer, Headlight on Warning Buzzer
8 20 ’79: Hazard Warning, Stop Light Switch
15 ’80-’82: Exterior Lights, Instrument Illumination
9 — —
10 15 Radio
11 25 ’79: Air Conditioning Clutch, Heated Backlight Relay, Speed Control and Illuminated Entry
20 ’80: Air Conditioning Clutch, Liftgate Wiper Washer, Speed Control, Rear Window de-icer, Trunk Release and Light out Warning
’81-’82: Accessories, Air Conditioning Clutch, Heated Rear Window Relay Coil, Deck Lid Release, Power Window Safety Relay, Speed Control
12 6 Circuit Breaker: Windshield Wiper/Washer System
13 5 ’79: Illumination Lamps, Cluster, Clock, Radio Ash Receptacle, Heater & A/C Controls, PRNDL
20 ’80-’81: Stoplamps, Hazard Warning Lamps
15 ’82: Stoplamps, Hazard Warning Lamps, Speed Control
14 30 ’79: Heater and Air Conditioning System
15 ’80-’82: Turn Signal and Back-up Lights
15 20 ’79: Turn Signal and Back-up Lights
15 ’80-’82: Heater
30 ’80-’82: Air Conditioning System
16 — —
17 20 ’79-’81: Not Used
’82:
Circuit Breaker: Power Windows

Circuit Breakers

 

Fuse Circuit(s) protected Ampere ratting [A] Location
1 ’79, ’81-’82: Headlight circuit and high beam indicator light 18 Circuit breaker intergral with headlight switch
’80: Headlight circuit and high beam indicator light 22 Circuit breaker intergral with headlight switch
2 ’79: Park, Marker, License and Tail Lights; Transmission Indicator, Headlight on Relay Control 15 Circuit breaker integral with headlight switch
3 ’81-’82: Liftgate Wiper and Washer 4,5 On bracket above glove box
4 ’81-’82: Power Windows, Door Locks and Seats 20 Attached to starter motor relay

 

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

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