Mercury Grand Marquis 1988 Main Fuse Box/Block Circuit Breaker Diagram
| Fuse Position | Amps | Circuits Protected |
|---|---|---|
| 1 | 15A | Stop/Hazard Lamps, Speed Control, Trailer Towing |
| 2 | 8,25A c.b | Wiper/Washer, Interval Wiper/Washer |
| 4 | 15A | Exterior Lamps, Instrument Illumination, Trailer Towing Relays, Automatic Lamps(Autolamp), Tripminder |
| 5 | 15A | Turn Lamps, Backup Lamps, Trailer Circuits, Rear Defrost, Load Leveling, Heated Windshield, Comering Lamps |
| 6 | 20A | Cornering Lamps, Speed Control, A/C Clutch, Trunk Lid Release, Police Circuits, Illuminated Entry, Power Window Relay (4DR), Digital Clock, Tripminder, Comering Lamps, Gauges |
| 7 | - | Not Used |
| 8 | 15A | Courtesy Lamps, Illuminated Entry, tripminder, Clock Electronic Radio, Power Mirrors, Power Door Locks, Heated Windshield |
| 9 | 30A | A/C Blower, Heater, ATC |
| 10 | 20A | Passing Beam |
| 11 | 15A | Radio, Power Antenna, Premium Sound, Instrument Illumination |
| 12 | 20 c.b | Rear Lighters, Tailgate Window Key Switch, Door Locks, Power Seats |
| 13 | 5A | Instrument Illumination, Tripminder |
| 14 | 25A or 20 c.b | Tailgate Window Instrument Panel Switch, Power Windows (2DR) |
| 15 | - | Not Used |
| 16 | 20A | Cigar Lighter |
| 17 | 20A | Horn |
| 18 | 10A | Warning Indicators, Seat Belt Warning, Automatic Lamps/Delayed Exit(Autolamp), Carburetor Circuits, Low Fuel Module, Dual Warning Buzzer, Thermactor Dump Timer and Relay |
Mercury Grand Marquis 1988 Main Fuse Panel/Board – Fuse Symbol Map
