Fuses and relays Land Rover Discovery (L318; 1998–2005)

Table of Contents

Engine Compartment
Passenger Compartment
- Interior Fuse Box Diagram
- Under Front Seats

The Land Rover Discovery is a series of mid-size SUVs first launched in 1989. The Discovery Series II made its debut in the fall of 1998. All body panels, with the exception of the outer rear door skin, were modified. In this article, we take a detailed look at the fuse box diagrams for the Land Rover Discovery (2nd Gen; L318 chassis): 1998, 1999, 2000, 2001, 2002, 2003, 2004, and 2005 model years.

Here you will find fuse box locations, layout diagrams, and relay assignments. The fuses responsible for the “Cigarette Lighter” and “Fuel Pump” are highlighted in bold.

Engine Compartment

Located on the right-hand side of the engine compartment, adjacent to the coolant expansion tank.

Overview of the Land Rover Discovery underhood fuse box.

Diagram


No.	Description	Rating
1	Fuel injectors	30 A
2	Engine Management System (EMS)	15 A
3	Front fog lamps	15 A
4	Headlamp washers	20 A
5	Engine cooling fan	40 A
6	Air conditioning compressor	10 A
7	Heated windshield (left)	40 A
8	Heated windshield (right)	40 A
9	Trailer towing socket	30 A
10	Fuel pump fuse	30 A
11	ABS modulator valves	30 A
12	Automatic transmission ECU	20 A
13	Body Control Unit (BCU)	10 A
14	Hazard warning lamps, turn signals	15 A
15	Active Cornering Enhancement (ACE)	15 A
16	Horns	10 A
Relay Modules

1	Fuel pump relay
2	Starter solenoid relay
3	Headlamp washer pump relay
4	Cooling fan motor relay
5	Self-Leveling Suspension (SLS) compressor relay
6	Glow plug relay
7	Ignition auxiliary relay
8	Heated windshield relay
9	Engine Management System (EMS) relay
10	ABS pump motor relay
11	A/C compressor clutch relay
12	Front fog lamp relay
13	Horn relay
14	Active Cornering Enhancement (ACE) relay

Passenger Compartment

The main fuse box is located behind the access panel on the lower instrument panel beneath the steering column. To access it, release the two turn-lock fasteners and lower the panel.

Additional fuse blocks are located beneath each front seat.

Interior Fuse Box Diagram

Overview.

Example schematic legend from the fuse box cover.

Diagram

No.	Description	Rating
1	Central door locking system	25 A
2	Fuel filler flap release	10 A
3	Instrument panel & switch backlighting	10 A
4	Rear fog lamps	10 A
5	Left headlamp high beam	10 A
6	Rear A/C blower motor	25 A
7	Front heater blower motor	30 A
8	Heated exterior mirrors, heated rear window	30 A
9	Left headlamp low beam	10 A
10	Right headlamp low beam	10 A
11	Left side & tail lamps, light switch, license plate illumination, trailer socket	10 A
12	Electric sunroof	30 A
13	Rear power windows	30 A
14	Ignition coils	20 A
15	Vanity mirror lights, heated seats, interior lamps, Land Rover Discovery cigarette lighter fuse	20 A
16	Rear headphone sockets, Park Distance Control (PDC), audio unit, clock	15 A
17	Audio amplifier, speakers	15 A
18	Rear window wiper motor	15 A
19	Windshield wiper motor & washer pump	15 A
20	OBD-II diagnostic socket, key interlock, CD changer, engine immobilizer, clock/audio memory, interior lighting	15 A
21	Shift interlock, warning chime, transfer case neutral interlock	15 A
22	Right headlamp high beam	10 A
23	Starter motor relay coil	10 A
24	Engine Management System (EMS), automatic transmission ECU, alternator	10 A
25	Reverse lamps, brake lamps	15 A
26	Auxiliary circuit relays	10 A
27	Hill Descent Control (HDC), instrument cluster	10 A
28	Anti-lock Braking System (ABS), Self-Leveling Suspension (SLS)	10 A
29	Active Cornering Enhancement (ACE)	10 A
30	Power mirrors, rear washer pump, cruise control ECU	20 A
31	Front A/C controls / blower	10 A
32	12V accessory power socket, cigarette lighter	25 A
33	Trailer socket, audio unit, switch backlighting, right side & tail lamps	10 A
34	Front power windows	30 A
35	Supplemental Restraint System (SRS / Airbag ECU)	10 A
Relays

1	Left turn signal relay
2	Right turn signal relay
3	Rear power window relay
4	Ignition coil relay