Mazda Miata (1989 – 1997) – fuse and relay box diagram

Posted on 29 April 2025 by admin

Mazda Miata (1989 – 1997) – fuse and relay box diagram

Year of production: 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997

This article covers the first-generation Mazda MX-5 Miata (NA), produced between 1989 and 1997. It includes fuse box diagrams for the 1989–1997 models, provides details on the locations of the fuse panels inside the vehicle, and explains the function and layout of each fuse and relay.

Engine compartment

Fuse Box Location

Fuse Box Diagram

Mazda Miata (1989 - 1997) - fuse and relay diagram - engine compartment — Mazda Miata (1989 – 1997) – fuse and relay diagram – engine compartment

Assignment of the fuses in the engine compartment

Position	Name	Fuse rating [A]	Description
1	HEAD	30	Headlights
2	INJ	30	Fuel injection, Alternator
3	MAIN	80	For protection of all circuits
4	BTN	40	Refer to HAZARD (15A), STOP (15A), ROOM (10A), TAIL (15A)
5	ABS	60	Antilock brake system
6	COIOLING FAN	30	Cooling fan
7	AIR BAG	10	Air bag
8	AD FAN	20	Additional fan (Air conditioner)
9	ST SIG	10	Fuel injection
10	RETRACTOR	30	Headlight retractor

Passenger compartment

Fuse Box Location

Fuse Box Diagram

Mazda Miata (1989 - 1997) - fuse and relay diagram - passenger compartment — Mazda Miata (1989 – 1997) – fuse and relay diagram – passenger compartment

Assignment of the fuses in the passenger compartment

Position	Name	Fuse rating [A]	Protected component
A	ENGINE	15	Cooling fan
B	METER	10	Gauges, Warning lights, Turn-signal lights, Cruise control
C	AIR BAG	15	Air bag
D	HEATER	30	Heater
E	—	—	—
F	POWER WIND	30	Power windows
G	WIPER	20	Wipers, Washer
H	—	—	—
I	TAIL	15	Tail lights
J	—	—	—
K	STOP	15	Shift lock, Cruise control, Horn, Stoplights
L	HAZARD	15	Hazard warning lights
M	—	—	—
N	ROOM	10	Interior lamps, Warning buzzers, Radio/cassette and compact disc player and clock
O	CIGAR	15	Radio/cassette and compact disc player and clock, Cigarette lighter
P	—	—	—
Q	—	—	—

Luggage compartment

Fuse Box Location

Fuse Box Diagram

Mazda Miata (1989 - 1997) - fuse and relay diagram - luggage compartment — Mazda Miata (1989 – 1997) – fuse and relay diagram – luggage compartment

Assignment of the fuses in the trunk

Number	Name	Ampere ratting [A]	Description
1	DEFOG	10	Rear defroster
2	ANTENNA	10	Auto antenna

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Alfa Romeo 164 (1988 – 1997) – fuse box diagram

Posted on 6 September 2024 by admin

Alfa Romeo 164 (1988 – 1997) – fuse box diagram

Year of production: 1988, 1989, 1990, 1991, 1992, 1992, 1993, 1994, 1995, 1996, 1997

Alfa Romeo 164 is a business class car manufactured by Alfa Romeo. Produced from 1987 to 1998 in the sedan body. This material is suitable for cars produced in 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997 for finding and replacing fuses and relays on Alfa Romeo 164 cars. We will also show the fuse box diagrams and their locations, as well as the purpose of their elements.

Passenger compartment

Fuse box location

Fuse and relay box is locate under the dashboard

Fuse box diagram

Relays	A	Description
A		Headlamp high beam relay
B		Headlamp low beam relay
C		Turn Signal / Hazard Relay
D		Front / Rear Lamp Relays
E		Interior lamp relay
F		Front power window relay
G		Rear power window relay
H		Seat heater / sunroof relay
1	10	LH side lamp, LH tail lamp, license plate lamp, cigarette lighter lamp
2	10	LH lamp, RH lamp, Tailgate lamp, instrument cluster illumination, vanity mirror lamp
3	20	Heated door mirrors, heated rear window, heated windscreen, cigarette lighter – front
4	30	Power window regulator – front left
5	30	Power window regulator – front right
6	10	Interior lamp
7	10	Low beam headlamp – LH
8	10	Low beam headlamp – right
9	20	Sunroof, seat heater
10	10	Cluster illumination rheostat, A / C relay, A / C compressor clutch relay
11	30	Power window regulator – rear right
12	30	Power window regulator – rear left
13	10	High beam headlamp – LH
14	10	High beam headlamp – right
15	10	Direction indicators, front / rear lamps
16	20	Reversing lights, windshield wiper
17	15	Fog lights-front
18	10	Stop lights
19	20	Headlamp washer, hazard warning lights
20	30	Power seat
21	10	Cooling fan motor relay, glow plug relay, fuel heater relay, cruise control
22	10	Rear fog lamps
23	15	Central locking
24	10	Cigar lighter , rear
25	75	“+” battery
26	10	Power supply circuit
27	30	Fuel filler flap / cover
28	3	A / C compressor magnetic clutch
29	75	Anti-theft system
The fuse number 24, 10A, is responsible for the cigarette lighter.

Engine compartment

Fuse and relay boxes

There are several small boxes with relays and fuses under the hood.

Alfa Romeo 164 (1988 - 1997) - fuse box diagram - engine compartment — Alfa Romeo 164 (1988 – 1997) – fuse box diagram – engine compartment

No.	A	Description
1		Common relay
2		Relay of fuel pump
3		Relay of device of the variable valve timing system
4		Relay 2 of the electronic engine color unit

1	15	Fuel pump
2	3	Electronic engine control unit
3	75	Oxygen sensor

Luggage compartment fuse box

Alfa Romeo 164 (1988 - 1997) - fuse box diagram - luggage compartment — Alfa Romeo 164 (1988 – 1997) – fuse box diagram – luggage compartment

	Description
	Suspension control relay
	Heated rear window relay
	Rear seat motor relay
10A	Anti-thef system
3A	Anti-thef alarm horn
10A	Phone
40A	Heated rear window

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Chevy G30 (1988 – 1992) – fuse and relay box diagram

Posted on 7 August 202211 August 2025 by admin

Chevy G30 (1988 – 1992) – fuse and relay box diagram

Year of production: 1988, 1989, 1990, 1991, 1992

This article covers the Chevy G30, produced from 1970 to 1996. It includes fuse box diagrams for the 1988, 1989, 1990, 1991 and 1992 models, provides details on the location of the fuse panels inside the vehicle, and explains the function and layout of each fuse.

Fuse box diagram

Chevy G30 (1988 - 1992) - fuse and relay box diagram — Chevy G30 (1988 – 1992) – fuse and relay box diagram

Assignment of the fuses in the fuse box diagram

No.	A	Circuit Protected
1	20	Horn, Glove Box Light, Clock, Electric/Vanity Mirrors, Cigarette Lighter
2	20	Parking Lights, Light Switch, Tail Lights
3	10	Electronic Control Module (ECM)
4	20	Gauge, Cruise Control, Ashtray Light
5	20	Ignition, Ignition Switch, Turn Signal Flasher, Back-Up Light Switch
6	10	Electronic Control Module (ECM), Ignition
7	10	Daytime Running Lights
8	5	Rear Air Conditioning Switch Light, Rear Auxiliary Heater Switch, Dome Light Switch, Cigarette Lighter, Convenience Tray Light, Foglight, Mirror Switch Light, Auxiliary Heater, Rear Air Conditioning
9	25	Auxiliary Heater and Air Conditioning
10	20	Heater, Air Conditioning
11	30	Circuit Breaker: Power Windows
12	20	Fuel Pump
13	30	Circuit Breaker: Power Seat, Power Door Locks
14	20	Hazard Flasher, Stop Lamps
15	10	Radio
16	25	Windshield Washer/Wiper Motor and Switch
17	–	–

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Chevy G20 (1988 – 1992) – fuse and relay box diagram

Posted on 7 August 202211 August 2025 by admin

Chevy G20 (1988 – 1992) – fuse and relay box diagram

Year of production: 1988, 1989, 1990, 1991, 1992

This article covers the Chevy G20, produced from 1970 to 1996. It includes fuse box diagrams for the 1988, 1989, 1990, 1991 and 1992 models, provides details on the location of the fuse panels inside the vehicle, and explains the function and layout of each fuse.

Fuse box diagram

Chevy G20 (1988 - 1992) - fuse and relay box diagram — Chevy G20 (1988 – 1992) – fuse and relay box diagram

Assignment of the fuses in the fuse box diagram

No.	A	Circuit Protected
1	20	Horn, Glove Box Light, Clock, Electric/Vanity Mirrors, Cigarette Lighter
2	20	Parking Lights, Light Switch, Tail Lights
3	10	Electronic Control Module (ECM)
4	20	Gauge, Cruise Control, Ashtray Light
5	20	Ignition, Ignition Switch, Turn Signal Flasher, Back-Up Light Switch
6	10	Electronic Control Module (ECM), Ignition
7	10	Daytime Running Lights
8	5	Rear Air Conditioning Switch Light, Rear Auxiliary Heater Switch, Dome Light Switch, Cigarette Lighter, Convenience Tray Light, Foglight, Mirror Switch Light, Auxiliary Heater, Rear Air Conditioning
9	25	Auxiliary Heater and Air Conditioning
10	20	Heater, Air Conditioning
11	30	Circuit Breaker: Power Windows
12	20	Fuel Pump
13	30	Circuit Breaker: Power Seat, Power Door Locks
14	20	Hazard Flasher, Stop Lamps
15	10	Radio
16	25	Windshield Washer/Wiper Motor and Switch
17	–	–

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Audi 200 (C3; 1983 – 1991) – fuse and relay box diagram

Posted on 24 July 20184 August 2025 by admin

Audi 200 (C3; 1983 – 1991) – fuse and relay box diagram

Year of production: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991

This article covers the second-generation Audi 200 (C3), produced from 1983 to 1991. It includes fuse box diagrams for the 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990 and 1991 models, provides details on the location of the fuse panels inside the vehicle, and explains the function and layout of each fuse.

Fuses box diagram

Audi 200 (C3; 1983 - 1991) - fuse and relay box diagram — Audi 200 (C3; 1983 – 1991) – fuse and relay box diagram

Assignment of the fuses in the fuse box

№	A	Description
1	15	Fog lights, rear fog lights
2	15	Emergency flashers
3	25	Horn, brake lights
4	15	Reading lights, luggage compartment, cigar lighter, interior lights, make-up mirror, Board Computer
5	30	Not used
6	5	Side marker, park lights, right
7	5	Side marker, park lights, left
8	10	Hi-beam headlight, hi-beam indicator light
9	10	Hi-beam headlight, left
10	10	Low beam, headlight, right
11	10	Low beam, headlight, left
12	15	Instrument cluster, back-up lights, cruise control, electronic thermoswitch
13	15	Fuel pump
14	5	Glove compartment, engine compartment, license plate lights
15	25	Windshield wipers
16	30	Rear window heat element, outside mirror heat element
17	30	Fresh air blower
18	5	Rear wiper (wagon)
19	10	Central locking system and fuel injection control unit 100, 100 Quattro
20	30	Heated seats with Memory Seat
21	25	Not used
22	–	Not used
23	30	Not used
24	10	Not used
25	30	Power seats with memory, passenger power seat
26	5	Auto-Check, power mirrors, driver’s seat memory control
27	10	Ignition control unit 100, 100 Quattro
28	15	Fuel injection control unit II
29	–	Spare fuses

Relay box diagram

Assignment of the relays in the relay box

№	Description
1	Open
2	Radiator cooling fan (stage 2)
3	100 models — radiator cooling fan after-run 200 models — radiator cooling fan (stage 1)
4	Not used
5	Load reduction relay
6	Not used
7	Horn
8	Anti-theft relay
9	Intermittent washer/wiper
10	Fuel pump
11	A/C relay

Auxiliary relay panel

Assignment of the relay in the auxiliary relay box

№	Description
1	Open
2	Seat belt/park light radio warning control unit
3	Interior light delay control unit
4	Open
5	Lamp control unit, front
6	Open
7	Rad coolant fan relay 3rd stage
8	ABS combination relay
9	Intensive washer relay
10	Power window control unit
11	Power window control unit
12	Rear window wiperwasher relay
13	Open
14	Circuit breaker for windows
15	Driver heated seat relay
16	Passenger heated seat relay
17	Open

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Audi 100 (C3; 1983 – 1991) – fuse and relay box diagram

Posted on 24 July 20183 August 2025 by admin

Audi 100 (C3; 1983 – 1991) – fuse and relay box diagram

Year of production: 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991

This article covers the second-generation Audi 100 (c3), produced from 1983 to 1991. It includes fuse box diagrams for the 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990 and 1991 models, provides details on the location of the fuse panels inside the vehicle, and explains the function and layout of each fuse.

Fuses box diagram

Audi 100 (C3; 1983 - 1991) - fuse and relay box diagram — Audi 100 (C3; 1983 – 1991) – fuse and relay box diagram

Assignment of the fuses in the fuse box

№	A	Description
1	15	Fog lights, rear fog lights
2	15	Emergency flashers
3	25	Horn, brake lights
4	15	Reading lights, luggage compartment, cigar lighter, interior lights, make-up mirror, Board Computer
5	30	Not used
6	5	Side marker, park lights, right
7	5	Side marker, park lights, left
8	10	Hi-beam headlight, hi-beam indicator light
9	10	Hi-beam headlight, left
10	10	Low beam, headlight, right
11	10	Low beam, headlight, left
12	15	Instrument cluster, back-up lights, cruise control, electronic thermoswitch
13	15	Fuel pump
14	5	Glove compartment, engine compartment, license plate lights
15	25	Windshield wipers
16	30	Rear window heat element, outside mirror heat element
17	30	Fresh air blower
18	5	Rear wiper (wagon)
19	10	Central locking system and fuel injection control unit 100, 100 Quattro
20	30	Heated seats with Memory Seat
21	25	Not used
22	–	Not used
23	30	Not used
24	10	Not used
25	30	Power seats with memory, passenger power seat
26	5	Auto-Check, power mirrors, driver’s seat memory control
27	10	Ignition control unit 100, 100 Quattro
28	15	Fuel injection control unit II
29	–	Spare fuses

Relay box diagram

Assignment of the relays in the relay box

№	Description
1	Open
2	Radiator cooling fan (stage 2)
3	100 models — radiator cooling fan after-run 200 models — radiator cooling fan (stage 1)
4	Not used
5	Load reduction relay
6	Not used
7	Horn
8	Anti-theft relay
9	Intermittent washer/wiper
10	Fuel pump
11	A/C relay

Auxiliary relay panel

Assignment of the relay in the auxiliary relay box

№	Description
1	Open
2	Seat belt/park light radio warning control unit
3	Interior light delay control unit
4	Open
5	Lamp control unit, front
6	Open
7	Rad coolant fan relay 3rd stage
8	ABS combination relay
9	Intensive washer relay
10	Power window control unit
11	Power window control unit
12	Rear window wiperwasher relay
13	Open
14	Circuit breaker for windows
15	Driver heated seat relay
16	Passenger heated seat relay
17	Open

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Iveco Daily (II; 1989 – 2000) – fuse and relay box diagram

Posted on 18 July 20183 August 2025 by admin

Iveco Daily (1989 – 2000) – fuse and relay box diagram

Year of production: 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000

This article covers the second-generation Iveco Daily II (2nd generation), produced from 1989 to 2000. It includes fuse box diagrams for the 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999 and 2000 models, provides details on the location of the fuse panels inside the vehicle, and explains the function and layout of each fuse.

Fuse box diagram

Iveco Daily (II; 1989 - 2000) - fuse and relay box diagram — Iveco Daily (II; 1989 – 2000) – fuse and relay box diagram

Assignment of the fuses in the fuse box

No.	A	Function
1	5	Lh front parking light – Lh number plate light- Rh rear parking light – Rh front and Lh rear marker
2	5	lights – Dashboard. Rh front parking light – Rh number plate light -Lh rear parking light – Lh front and Rh rear
3	7,5	marker lights. Lh low beam light
4	7,5	Rh low beam light
5	7,5	Lh high beam light
6	7,5	Rh high beam light
7	3	Electronic speedometer or tachograph
8	5	Brake – instrument – telltale failure
9	10	Fog headlights
10	3	Rear fog lamps
11	5	Interior lighting (bus)
12	7,5	Not used
13	10	Hazard lights
И	5	Tractor unit turn signal lights
15	3	Engine stop
16	7,5	Reversing lights – stop lights
17	10	Homs
18	7,5	Interior lighting – Cigar lighter
19	15	Heated fuel oil filter
20	10	Windscreen wiper – Windscreen washer pump
21	15	Electric heater – Electromagnetic fan
22	7,5	Push switch lighting – flashing light
23	25	Power window – Electromagnetic fan
24	10	Emergency control pushbutton (Bus)
25	20	Air conditioning
26	20	Air conditioning
27	25	Air conditioning
28	25	Electric heater
29	40	Thermostarter control unit
Relays
E1	Low beam lights (switch contacts)
E2	High beam lights (N.O. contact)
E3	Users cutoff during starting stage (N.O. contact)
E4	Fog lamps (switch contacts)
E5	Heated fuel oil filter
E6	Emergency control unit
E7	Day lights + fog lamps
E8	Horns (N.O. contact)
E9	Windscreen wiper intermittent
E10	Flashing light (N.O. contact)
E11	Diode for emergency control unit (with day lights)
E12	Not used
E13	Brake system failure (switch contact)
E14a	Emergency control unit (with day lights)
E14b	Emergency control unit (with day lights)
E15	Direction indicators – single charge emergency
C	Air conditioning

Engine compartment

Fuse box diagram

Assignment of the fuses in the engine compartment

Fuse	Ampere rating [A]	Description
1	30	Electro-hidraulic assembly (Power Pack)
2	20	Electronic control unit (from battery positive)
3	20	Electronic control unit (lock and key protection)

Relay	Description
a	Circuit protection diode casing
b	Optical indicator ON button
c	Reversing light
d	Buzzer (acoustic indicator)

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Audi 90 (B3; 1987 – 1991) – fuse and relay box diagram

Posted on 17 July 20184 August 2025 by admin

Audi 90 (B3; 1987 – 1991) – fuse and relay box diagram

Year of production: 1987, 1988, 1989, 1990, 1991

This article covers the Audi 90 (B3), produced from 1987 to 1991. It includes fuse box diagrams for the 1987, 1988, 1989, 1990 and 1991 models, provides details on the location of the fuse panels inside the vehicle, and explains the function and layout of each fuse.

Fuse box diagram

Audi 90 (B3; 1986 - 1991) - fuse and relay box diagram — Audi 90 (B3; 1987 – 1991) – fuse and relay box diagram

Assignment of the fuses in the fuse box

No.	Description	A
1	Fog lights, rear fog light	15
2	Emergency flashers	15
3	Horn, brake lights	25
4	Reading lights, luggage compartment, cigar lighter, interior lights, make-up mirror, Board Computer, radio, clock, auto climate control, alarm system	15
5	Radiator cooling fan	30
6	Side marker, park lights, right	5
7	Side marker, park lights, left	5
8	Hi-beam headlight, right, hi-beam indicator light	10
9	Hi-beam headlight, left	10
10	Low beam headlight, right	10
11	Low beam headlight, left	10
12	Instrument cluster, back-up lights, Auto-Check, cruise control, ABS, Board Computer, differential locks, electronic thermoswitch, throttle valve time control unit, radiator cooling fan after-run control unit	15
13	Fuel pump, warm-up regulator	15
14	Glove compartment, engine compartment, license plate lights	5
15	Windshield wipers, thermoswitch, radiator cooling fan, turn signals, A/C pressure switch	25
16	Rear window heat element, outside mirror heat element	30
17	Fresh air blower, A/C	30
18	Power mirrors, rear window wiper (Coupe)	5
19	Central locking system, heated lock system	10
20	Radiator cooling fan (step 1), radiator cool fan after-run	30
21	Diagnostic	10
21	Rear cigar lighter	25
22	Not used	–
23	Power seats with memory, power seat control unit	30
24	Engine control I	10
25	Heated seats	30
26	Daytime driving lights (Canada)	5
27	Engine control I (from September, 1987)	10
28	Engine control II	15
29	Spare fuses	15
Relay
I	Fog lights, J5
II	up to 1990: Radiator cooling tan (stage 2), J101 from 1990: Not used
III	Radiator cooling fan after-run control unit, J138
IV	up to 1990: Not used from 1990: Headlight washer system, J39
V	Load reduction relay, J18
VI	up to 1990: A/C fresh air blower, J11 from 1990: Radiator cooling fan high speed relay, J101
VII	Horn, J4
VIII	Bridge between contact 36 and 38 for manual transmissions Auto transmission, J60
IX	Intermittent washer/wiper, J31
X	Fuel pump, J17
XI	Radiator cooling fan (stage 1), J26

Auxiliary relay panel

Assignment of the fuses in the auxiliary relay panel

No.	Description
1	ABS system, J156
2	Seat belt, radio, parking light warning, J152
3	Interior light control unit, J140
4	A/C clutch control unit, J153
5	Not used
6	Dynamic oil pressure warning (without Auto-Check), J114 Lamp control unit, front (with Auto-Check), J123
7	Not used
8	Not used
9	Not used
10	Not used
11	Not used
12	Circuit breaker (power seats with memory, power windows, power sunroof), S43
13	Seat heater control unit, passenger. J132
14	Seat heater control unit, driver, J131
15	Sunroof relay, J139 Sunroof and power window control unit, J139
16	Sunroof and power window control unit, J139
17	Wire distributor adaptor, (optional equipment connector)
18	Not used

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Audi 80 (B3; 1986 – 1991) – fuse and relay box diagram

Posted on 17 July 20184 August 2025 by admin

Audi 80 (B3; 1986 – 1991) – fuse and relay box diagram

Year of production: 1986, 1987, 1988, 1989, 1990, 1991

This article covers the Audi 80 (B3), produced from 1986 to 1991. It includes fuse box diagrams for the 1986, 1987, 1988, 1989, 1990 and 1991 models, provides details on the location of the fuse panels inside the vehicle, and explains the function and layout of each fuse.

Fuse Box diagram

Audi 80 (B3; 1986 - 1991) - fuse and relay box diagram — Audi 80 (B3; 1986 – 1991) – fuse and relay box diagram

Assignment of the fuses in the fuse box

No.	Description	A
1	Fog lights, rear fog light	15
2	Emergency flashers	15
3	Horn, brake lights	25
4	Reading lights, luggage compartment, cigar lighter, interior lights, make-up mirror, Board Computer, radio, clock, auto climate control, alarm system	15
5	Radiator cooling fan	30
6	Side marker, park lights, right	5
7	Side marker, park lights, left	5
8	Hi-beam headlight, right, hi-beam indicator light	10
9	Hi-beam headlight, left	10
10	Low beam headlight, right	10
11	Low beam headlight, left	10
12	Instrument cluster, back-up lights, Auto-Check, cruise control, ABS, Board Computer, differential locks, electronic thermoswitch, throttle valve time control unit, radiator cooling fan after-run control unit	15
13	Fuel pump, warm-up regulator	15
14	Glove compartment, engine compartment, license plate lights	5
15	Windshield wipers, thermoswitch, radiator cooling fan, turn signals, A/C pressure switch	25
16	Rear window heat element, outside mirror heat element	30
17	Fresh air blower, A/C	30
18	Power mirrors, rear window wiper (Coupe)	5
19	Central locking system, heated lock system	10
20	Radiator cooling fan (step 1), radiator cool fan after-run	30
21	Diagnostic	10
21	Rear cigar lighter	25
22	Not used	–
23	Power seats with memory, power seat control unit	30
24	Engine control I	10
25	Heated seats	30
26	Daytime driving lights (Canada)	5
27	Engine control I (from September, 1987)	10
28	Engine control II	15
29	Spare fuses	15
Relay
I	Fog lights, J5
II	up to 1990: Radiator cooling tan (stage 2), J101 from 1990: Not used
III	Radiator cooling fan after-run control unit, J138
IV	up to 1990: Not used from 1990: Headlight washer system, J39
V	Load reduction relay, J18
VI	up to 1990: A/C fresh air blower, J11 from 1990: Radiator cooling fan high speed relay, J101
VII	Horn, J4
VIII	Bridge between contact 36 and 38 for manual transmissions Auto transmission, J60
IX	Intermittent washer/wiper, J31
X	Fuel pump, J17
XI	Radiator cooling fan (stage 1), J26

Auxiliary relay panel

Assignment of the fuses in the auxiliary relay panel

No.	Description
1	ABS system, J156
2	Seat belt, radio, parking light warning, J152
3	Interior light control unit, J140
4	A/C clutch control unit, J153
5	Not used
6	Dynamic oil pressure warning (without Auto-Check), J114 Lamp control unit, front (with Auto-Check), J123
7	Not used
8	Not used
9	Not used
10	Not used
11	Not used
12	Circuit breaker (power seats with memory, power windows, power sunroof), S43
13	Seat heater control unit, passenger. J132
14	Seat heater control unit, driver, J131
15	Sunroof relay, J139 Sunroof and power window control unit, J139
16	Sunroof and power window control unit, J139
17	Wire distributor adaptor, (optional equipment connector)
18	Not used

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

Jeep Wrangler YJ (1987 – 1995) – fuse and relay box diagram

Posted on 11 July 20189 April 2025 by admin

Jeep Wrangler YJ (1987 – 1995) – fuse and relay box diagram

Year of production: 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1995

This article focuses on the first-generation Jeep Wrangler (YJ), manufactured between 1987 and 1995. It includes fuse box diagrams for the 1987–1995 models, details the locations of the fuse panels within the vehicle, and provides information on the function and layout of each fuse and relay.

Passenger compartment fuse box

Fuse Box Location

It is located under the dashboard.

Fuse Box Diagram

Assignment of the fuses under the instrument panel

No.	A	Description
1	20	’90-’95: Rear Window Wiper, Rear Window Washer (’91)
2	20	’91: Horn
3	15	Stoplights, Underhood Light (’87-’91), Hazard Warning (’87-’91), Buzzer (’92-’95)
4	15	Turn Signals, Back-Up Lights (’87-’91)
5	20	’87-’91: Courtesy Light, Cargo Light, Glove Box Light, Radio (’91)
5	10	’92-’95: Automatic Shutdown Relay, Fuel Pump Relay (’93-’95) Engine Control Module (’93-’95)
6	25	Rear Window Defogger
7	30	’87-’92: Cigarette Lighter, Cruise Control, Radio, Rear Window Washer (’90)
7	20	’93-’95: Cigarette Lighter Radio, Radio Illumination
8	20	’87-’91: Headlamp Switch (Parking Lights), Turn Signal Switch
	20	’92: Running Lights, Exterior Lights
	20	’93-’95: Parking Lights, Key-In Warning Switch, Panel Lights Radio Relay, Headlight Switch, Side Marker Lights
9	15	’87-’91: Gauge Package, Seat Belt Indicators, Defogger Switch, Tachometer, Indicator Lights
9	15	’92-’95: Buzzer, Gauges, Warning Lights, Relays, Back-up Lamps, Key-In Switch
10	5	Instrument Panel Illumination, Parking Lights (’97-’88)
11	6.7	Circuit Breaker (’89): Windshield Wipers
11	5.3	Circuit Breaker (’90-’91): Windshield Wipers, Washers
12	25	Blower Motor
13	6.7	Circuit Breaker (’87-’88): Windshield Wipers
Relay
R1	Hazard Flasher
R2	Turn Signal Flasher

Fusible Links (’87-’90)

Assignment of the fuses (fusible links)

No.	AWG	Color	Description	Location
1	18	GRN	Headlight Switch, Lights	4.2L: Next to starter solenoid 2.5L: Next to starter solenoid, near starter
2	18	GRN	Ignition Switch	4.2L: Next to starter solenoid 2.5L: Next to starter solenoid, near starter
3	18	GRN	Manifold Heater Relay, Rear Window Defogger	4.2L: Next to starter solenoid 2.5L: Next to starter solenoid, near starter
4	14	BRN	4.2L: Alternator	Next to starter solenoid
	18	GRN	2.5L: Alternator	Next to starter solenoid, near starter
	14	BRN	2.5L: Alternator	Next to starter solenoid, near starter
5	18	GRN	2.5L: B+ Relay, Diagnostic Connectors, ECU, Fuel Pump Relay	Next to starter solenoid, near starter

’91-’95: Cruise Control Fuse – Taped to harness, near cruise control module

Fuse Box Diagram (1992-1995)

Jeep Wrangler YJ (1987 - 1995) - fuse box diagram - engine compartment box — Jeep Wrangler YJ (1987 – 1995) – fuse box diagram – engine compartment box

Assignment of the fuses in the engine compartment (1992-1995)

No.	A	Description
1	30	Fuel Pump, Automatic Shut Down
2	50	Alternator
3	50	Battery ACC
4	40	Ignition and Starter
5	20	’91: Fog Lamps
5	20	’92-’95: Hazard Flasher
6	50	Alternator
7	30	Headlamp
8	20	Ignition Off Draw, Horn (’92-’95)
9	40	’92-’95: ABS Pump Relay
10	30	’92-’95: ABS Power Relay
11	–	–
12	–	–
13	2	’92-’95: ABS Control Module
14	–	–
15	10	’92-’95: Horn, Horn Relay
16	10	’92-’95: Radio Memory, Clock Memory, Ignition Off Draw
Relay
A	’92-’95: Horn
B	Fuel Pump
C	’91: Air Conditioner Compressor Clutch
C	’92-’95: ABS Pump
D	’91: Auto Shutdown
D	’92-’95: Air Conditioner Compressor Clutch
E	’91: Starter
E	’92-’95: Automatic Shut Down
F	’91: Fog Lamp
F	’92-’95: Starter
G	’92-’95: ABS

Relay

Assignment of the fuses in the engine compartment (relay)

No.	Description	Location
1	’87-’90: B+ Latch	At right side of battery
2	Rear Window Defogger	At lower left kick panel, behind parking brake pedal
3	’87-’90: Fog Light	Behind left headlight
4	’87-’90: Fuel Pump	At right side of battery
5	Horn	Above and to left of fuse block
6	’87-’90: Idle Speed	At right of battery
7	4.2L (’87-’90): Manifold Heater	At right of battery
8	2.5L (’87-’88): Starter	Near battery
8	’89-’90: Starter	On battery tray bracket, to left of battery

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market