Mercury Grand Marquis Second Generation (1998 – 2002) – fuse box diagram
Year of production: 1992, 1993, 1994, 1995, 1996, 1997
Fuse box in instrument panel
| Fuse | Ampere rating [A] | Circuits protected |
| 1 | 15 | Hazard flasher, speed control, stop lamps |
| 2 | 30 | Wiper control module, windshield wiper motor |
| 3 | — | Not used |
| 4 | 15 | Lighting control module, headlamp dimmer switch |
| 5 | 15 | Backup lamps, variable assist power steering (VAPS), turn signal, air suspension, daytime running lamps, trailer battery charging, electronic day/night mirror, shift lock, EATC |
| 6 | 15 | Speed control, main light switch, headlamp dimmer switch, lighting control module, heated back lights and mirrors, clock |
| 7 | 25 | Powertrain control module (PCM) power diode, ignition coils |
| 8 | 15 | Lighting control module, power mirrors, remote keyless entry, clock memory, radio memory, electronic automatic temperature control (EATC), power door locks, power seats, power windows |
| 9 | 30 | Blower motor, A/C – heater mode switch |
| 10 | 10 | Air bag module |
| 11 | 15 | Radio |
| 12 | 20 CB | Lighting control module, flash-to-pass, main light switch |
| 13 | 15 | Air bag module, warning lamps, analog, cluster gauges and indicators, electronic automatic transmission, lighting control module, front control unit |
| 14 | — | Window/door lock control, driver’s door module, one touch down |
| 15 | 10 | Analog instrument cluster, anit-lock brakes, charge indicator |
| 16 | 20 | Cigar lighter, emergency flasher relays |
| 17 | 10 | Power mirrors, rear defrost |
| 18 | 15 | Air bag module, digital instrument cluster |
The high current fuses and relays
| MAXI – fuse | Ampere rating [A] | Circuits protected |
| IGN. SW. | 50 | See fuses 1, 2, 6, 7,10, 11, 13 and circuit breaker 14 |
| IGN. SW. | 50 | Starter Relay, also see fuses 5, 9 |
| LAMPS FUSE PANEL | 40 | Headlamps, daytime running lamps, also see fuses 4, 8, 16 and Circuit Breaker 12 |
| EEC | 30 | PCM Power Relay, PCM |
| COOLING FAN | 50 | Cooling Fan Relay |
| HTD BACKLITE | 40 | Rear window defrost relay, also see Fuse 17 |
| ABS CONTROLLER | 30 | Anti-Lock Brake Module |
| * TRAILER BRAKES | 30 | Electric Brake Controller |
| * TRAILER TOW | 40 | Trailer Turn, battery charging relay |
| ** AIR SUSP. PUMP/SPEEDO | 30 | Air suspension compressor relay, air spring solenoids |
| Fuse | Ampre rating [A] | Circuits protected |
| FUEL PUMP | 20 | Electric fuel pump relay |
| STARTER/ALTERNATOR | 30 | Starter Relay, Generator, Fuses 15, 18 |
| AUDIO | 25 | Radio amplifier, subwoofer amplifier |
| * TRAILER TOW | 20 | Trailer exterior lamp relays |
| HORNS | 15 | Horn relay, horns |
| HI-BEAM HEADLIGHTS | 20 | Lighting Control Module, DRL |
| DOOR LOCKS/ SEAT MOTORS | 20 CB | Power door locks, power seats, trunk lid release, fuel filler door release |
* with trailer tow only
** with air suspension only
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.