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Mercury Grand Marquis (1979 - 1982) Fuse Box Diagram

avatar Jonathan Yarden Oct 22, 2021 · 5 min. read

In this article you will find a description of fuses and relays Mercury, 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 diagram

Mercury Grand Marquis - fuse box diagram

β„–
A
Protected Component
1 5 Instrument illumination
2 10 Automatic light warning indicators and carburetor circuits
3 β€” β€”
4 20 Horn and cigar lighter
5 25 Cigar lighters and tailgate window key switch
30 Circuit Breaker: Door locks, tailgate window key switch, lighters and power seats
6 β€” β€”
7 15 Courtesy lights, illuminated entry, clock and CB radio
8 15 License, tail, parking and coach lights
9 β€” β€”
10 15 Radio, power antenna, CB radio and premium sound system
11 20 Air conditioning clutch, cornering lights, rear window de-icer, trunk release, speed control, police circuits, illuminated entry, power window safety relay (4-dr) and digital clock
12 8.25 Circuit Breaker: Windshield wipers/washers and intermittent wipers
13 15 Hazard and stop lights
14 15 Turn signal lights, back-up lights and trailer
15 30 Heater and air conditioning blower
16 β€” β€”
17 25 Tailgate windows and instrument panel switch
30 Circuit Breaker: Power windows
Circuit Breaker:

  • Headlights – An 18 amp. C.B. is integral with headlight switch.
  • Power Windows β€” A 20 amp. C.B. is located on the fuse panel on 2-door models, or at the starter relay on 4-door models.

Fusible Links:

A fusible link located at the wiring harness of the starter relay protects the followng circuits, heated rear window, trailer towing brakes and lights, and the air bag feed.

In-Line Fuse:

A 2 amp. in-line fuse is located on the visor to protect the lighted vanity mirror

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

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