Mercury Grand Marquis (1998-2002) – fuses diagram

1999 Mercury Grand Marquis LS Front Driver Side 7/8

Engine compartment fuse box

Number A Function
1 20 Electric fuel pump relay
2 30 Generator, starting relay, fuses 15, 18
3 25 Radio, CD changer, subwoofer amplifier
4 Unused
5 15 Horn relay
6 20 DRL module
7 20 Circuit breaker: Door locks, power seats, trunk lid release
8 30 Air suspension system
9 50 Fuses 5, 9
10 50 Fuses 1, 2, 6, 7, 10, 11, 13 and circuit breaker 14
11 40 98-’00: fuses 4, 8, 16 and circuit breaker 12
50 01-’02: fuses 4, 8, 16 and circuit breaker 12
12 30 PCM power relay, PCM
13 50 High-speed cooling fan relay
14 40 Rear window defroster relay, fuse 17
15 50 98- 00: Anti-lock module
40 01-„02: Anti-lock module
16 Unused
17 30 Circuit breaker: Cooling fan relay
Relay
R1 Rear defrost relay
R2 Horn relay
R3 Cooling fan relay
R4 Air suspension pump relay

Additional relay box

Diode
1 PCM power supply
Relay
R1 A/C cutout
R2 Fuel pump
R3 PCM power supply

Passenger compartment fuse box (’98-’00)

Number A Function
1 15 98: Emergency lights, stop lamps
15 99-’00: Brake pedal position switch (BPP), speed control, multifunction switch
2 30 Wiper module, windshield wiper motor
3 Not used
4 15 Lighting control module, headlight switch (’99-’00), headlight dimmer switch (’98)
5 15 Backup lamps, variable assist power steering (VAPS), turn signals, air suspension, daytime running lights, electronic day/night mirror, shift lock, EATC, speed bell warning (’99-’00).
6 15 Speed control, headlight switch, headlight dimmer switch (’98), lighting control module, 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 seats (’98), Power Windows, SecuriLock, PATS (’99-’00)
9 30 Engine blower, A/C-Heater mode switch
10 10 Airbag module
11 5 Radio
12 18 Circuit breaker: Lighting control module, Flash-to-Pass, master light switch
13 15 Airbag module (’98), warning lamps, analog indicators and cluster indicators, electronic automatic transmission, lighting control module, lighting control module, front control unit (’98)
14 20 Circuit breaker: Window/door control, driver’s door module, one touch down
15 10 Anti-lock brakes, charge indicator (’98), instrument cluster (’99-’00), transmission control switch (’99-’00)
16 20 Car cigarette lighter, emergency laser relays (’98), auxiliary power point (’00)
17 10 Electric mirrors (’98), rear defroster
18 10 Airbag module, digital instrument cluster (’98)

Passenger compartment fuse box (’01-’02)

Number A Function
1 Not used
2 Unused
3 Unused
4 10 Airbags
5 Not used
6 15 Instrument cluster, warning lamp module, transmission control switch, lighting control module (LCM)
7 Unused
8 25 Power Train Control Module (PCM) Power Relay, Coil-on-Plugs, Radio Noise Capacitance, Passive Anti-theft System (PATS)
9 Not used
10 10 Defrosting the rear window
11 Unused
12 Unused
13 5 Radio
14 10 Traction control switch, anti-lock brakes (ABS), instrument cluster
15 15 Speed control servo, headlight switch lighting, lighting control module (LCM), clock
16 15 Reversing lamps, turn signals, shift lock, DRL module, EVO control, electronic day/night mirror
17 30 Wiper motor, wiper control module
18 30 Blower heater Blower motor
19 20 Auxiliary power point
20 Unused
21 15 Multifunction switch, lighting control module (LCM), passive anti-theft system (PATS) indicator, parking lamps, instrument panel lighting
22 15 Speed control servo, hazard lights
23 15 Power windows/doors, PATS, rear exterior mirrors, EATC module, instrument cluster, clock, lighting control module (LCM), interior lamps
24 10 Left dipped headlight
25 20 Power point, cigarette lighter
26 10 Right dipped beam
27 25 Lighting control module (LCM), main light switch, cornering lamps, fuel tank pressure sensor
28 20 Power windows
29 Unused
30 Unused
31 Unused
32 20 ABS valves