Diagrams of fuse and relay boxes – Nissan Sentra

Applies to vehicles manufactured in the years:

1990, 1991, 1992, 1993, 1994.

Passenger compartment

1. Fuse box
2. Automatic gearbox control unit
3. Daylight control unit
4. Clutch switch
5. Shift lock control unit
6. Stop lamp switch
7. ASCD cancel switch
8. ASCD holding relay
9. ASCD control unit
10. Combined flash unit
11. ABS control unit
12. Ignition relay 3 (without sunroof)
    Sunroof relay
13. Tunnel sensor and safety sensor
14. Airbag control unit
15. Engine Control Module (ECM / ECCS)
16. Engine Control Module (ECM / ECCS) Relay
17. Time control unit

 

Distribution board fuse box diagram

The fuse block is located behind a cover on the instrument panel.

Number	Amperes [A]	Protected circuit
1	10	Odometer, Beacon, Daylight Control System, Rear Window Defogger, ASCD, Backup Lamp, Bulb Check Relay, Engine Control Module (ECM / ECCS), A / T Shift Lock System, A / T Control Unit
2	10	Turn on the indicator light
3	10	Ignition 3 relay, sunroof relay, timing system, ASCD, air conditioning, power window system, 2 point, motorized automatic seat belt system, door lock system
4	10	Airbag system
5	15	Lighter
6	10	Outside mirror, air conditioner
7	20	Front wiper and washer
8	10	Sound, Illumination Lamp, Clock, Engine Control Module (ECM / ECCS)
9	10	Daytime Running Light Control System, Engine Control Module (ECM / ECCS)
10	15	Blower motor
11	15	Blower motor
12	10	Danger warning light
13	15	Stop lamp, front fog lamp
14	10	Timing control system, Engine Control Module (ECM / ECCS), A / T Shift Lock System
15	10	Interior lamp, trunk lamp, clock, time control system, warning buzzer, 2-point automatic seat belt system, 3-point permanent automatic seat belt system, sound, airbag system
16	10	Air conditioner, A / T control unit
17	10	Tail lamp, side marker lamp, marker lamp, license lamp, floodlight lamp, time control system
18	15	Stop Lamp, High Mount Stop Lamp, ASCD, A / T Shift Lock System
19	10	Engine Control Module (ECM / ECCS), Inhibitor Relay, ABS, Cooling Fan
20	15	Fuel pump
21	20	Rear window defogger
22	20	Rear window defogger
Relays
R1	Rear window defogger
R2	Ignition 2
R3	Accessory
R4	Ignition 1

Engine compartment

1. Fuse box
2. Relay box 1
3. Front impact zone sensor
4. Relay box 2

Diagram of the fuse box in the engine compartment

Number	Amperes [A]	Description
1	15	Right headlight, daytime running light
2	15	Left-hand headlight, daytime running light
3	10	Horn
4	20	ABS
5	thirty	Cooling fan
6	thirty	ABS
7	thirty	Circuit Breaker (Two Point Motorized Automatic Seat Belt System), Circuit Breaker (Power Window, Door Lock, Sunroof Relay)
8	thirty	Ignition switch, charging system
9	25	Engine Control Module (ECCS)
10		SR engine: Cooling fan
Relay
R1	GA engine: Horn

Relay box # 1

Number	Relays
R1	Inhibitor (automatic transmission)
	Clutch (manual gearbox)
R2	Cooling fan relay 1 (automatic transmission + SR engine)
	Main cooling fan relay (except automatic transmission + SR engine)
R3	Cooling fan relay 2 (automatic transmission + SR engine)
	Main Cooling Fan Relay (Automatic Transmission + GA Engine)
R4	Fuel pump
R5	Air conditioner
R6	Front fog lamp

Relay box # 2

Number	Relay
R1	GA engine: horn (except US)
R2	Cooling fan relay 3 (automatic transmission + SR engine)
R3	Daylight