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Mercury Grand Marquis (1998-2002) fuses and relays

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In this article, we consider the third-generation Mercury Grand Marquis, produced from 1998 to 2002. Here you will find fuse box diagrams of Mercury Grand Marquis 1998, 1999, 2000, 2001 and 2002, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.

Fuse Layout Mercury Grand Marquis 1998-2002


Cigar lighter (power outlet) fuses in the Mercury Grand Marquis are the fuses #16 (1998-2000: Cigar Lighter, Auxiliary Power Point), #19 (2001-2002: Auxiliary Power Point), #25 (2001-2002: Power Point, Cigar Lighter) in the Instrument panel fuse box.


Instrument Panel Fuse Box

Fuse box location

The fuse box is located under the left side of the instrument panel.

Fuse box diagram (1998-2000)

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Assignment of the fuses in the instrument panel (1998-2000)
Protected componentsAmp
11998: Hazard Flasher, Stop Lamps
1999-2000: Brake Pedal Position (BPP) Switch, Speed Control, Multi-Function Switch
15
2Wiper Control Module, Windshield Wiper Motor30
3Not Used
4Lighting Control Module, Main Light Switch (1999-2000), Headlamp Dimmer Switch (1998)15
5Backup Lamps, Variable Assist Power Steering (VAPS), Turn Signals, Air Suspension, Daytime Running Lamps, Electronic Day/Night Mirror, Shift Lock, EATC, Speed Chime Warning (1999-2000)15
6Speed Control, Main Light Switch, Headlamp Dimmer Switch (1998), Lighting Control Module, Clock15
7Powertrain Control Module (PCM) Power Diode, Ignition Coils25
8Lighting Control Module, Power Mirrors, Remote Keyless Entry, Clock Memory, Radio Memory, Electronic Automatic Temperature Control (EATC), Power Seats (1998), Power Windows, SecuriLock, PATS (1999-2000)15
9Blower Motor, A/C-Heater Mode Switch30
10Air Bag Module10
11Radio5
12Circuit Breaker:  Lighting Control Module, Flash-to-Pass, Main Light Switch18
13Air Bag Module (1998), Warning Lamps, Analog Cluster Gauges and Indicators, Electronic Automatic Transmission, Lighting Control Module, Front Control Unit (1998)15
14Circuit Breaker:  Window/Door Lock Control, Driver’s Door Module, One Touch Down20
15Anti-Lock Brakes, Charge Indicator (1998), Instrument Cluster (1999-2000), Transmission Control Switch (1999-2000)10
16Cigar Lighter, Emergency Flasher Relays (1998), Auxiliary Power Point (2000)20
17Power Mirrors (1998), Rear Defrost10
18Air Bag Module, Digital Instrument Cluster (1998)10

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Fuse box diagram (2001-2002)

Assignment of the fuses in the instrument panel (2001-2002)
Protected componentsAmp
1Not Used
2Not Used
3Not Used
4Air Bags10
5Not Used
6Instrument Cluster, Warning Lamps Module, Transmission Control Switch, Lighting Control Module (LCM)15
7Not Used
8Power Train Control Module (PCM) Power Relay, Coil-on -Plugs, Radio Noise Capacitator, Passive Anti-theft System (PATS)25
9Not Used
10Rear Window Defrost10
11Not Used
12Not Used
13Radio5
14Traction Control Switch, Anti-lock Brakes (ABS), Instrument Cluster10
15Speed Control Servo, Main Light Switch Illumination, Lighting Control Module (LCM), Clock15
16Reversing lamps, Turn Signals, Shift Lock, DRL Module, EVO Steering, Electronic Day/Night Mirror15
17Wiper Motor, Wiper Control Module30
18Heater Blower Motor30
19Auxiliary Power Point20
20Not Used
21Multifunction Switch, Lighting Control Module (LCM), Passive Anti-theft System (PATS) Indicator, Parking Lamps, Instrument Panel Light15
22Speed Control Servo, Hazard Lights15
23Power Windows/Door Locks, PATS, Exterior Rear View Mirrors, EATC Module, Instrument Cluster, Clock, Lighting Control Module (LCM), Interior Lamps15
24Left Hand Low Beam10
25Power Point, Cigar Lighter20
26Right Hand Low Beam10
27Lighting Control Module (LCM), Main Light Switch, Cornering Lamps, Fuel Tank Pressure Sensor25
28Power Windows20
29Not Used
30Not Used
31Not Used
32ABS Values20

Engine Compartment Fuse Box

Fuse box location

The Power Distribution Box is located in the engine compartment (on the passenger side).

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Fuse box diagram

Assignment of the fuses and relays in the Power distribution box
Protected componentsAmp
1Electric Fuel Pump Relay20
2Generator, Starter Relay, Fuses 15, 1830
3Radio, CD Changer, Subwoofer Amplifier25
4Not Used
5Horn Relay15
6DRL Module20
7Circuit Breaker:  Power Door Locks, Power Seats, Trunk Lid Release20
8Air Suspension System30
9Fuses 5, 950
10Fuses 1, 2, 6, 7, 10, 11, 13 and Circuit Breaker 1450
111998-2000: Fuses 4, 8, 16 and Circuit Breaker 1240
112001-2002: Fuses 4, 8, 16 and Circuit Breaker 1250
12PCM Power Relay, PCM30
13High Speed Cooling Fan Relay50
14Rear Window Defrost Relay, Fuse 1740
151998-2000: Anti-Lock Brake Module50
152001-2002: Anti-Lock Brake Module40
16Not Used
17Cooling Fan Relay (Circuit Breaker)30
Relays
R1Rear Defrost Relay
R2Horn Relay
R3Cooling Fan Relay
R4Air Suspension Pump Relay

Additional Relay Box

This relay block is located on left-hand fender, attached to vacuum reservoir

Relay
R1A/C WOT Cutout
R2Fuel Pump
R3PCM Power
1PCM Power (Diode)

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