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Fuse box diagrams (layout, location, function, assignment) in the cabin and engine compartment of Alfa Romeo 155 (1992, 1993, 1994, 1995, 1996, 1997, 1998).
Checking and Replacing Fuses
The wiring circuits in the vehicle are protected from short circuits by fuses. This greatly reduces the chance of damage caused by electrical problems.
To check a fuse, look at the silver-colored band inside the fuse. If the band is broken or melted, replace the fuse. Be sure to replace a bad fuse with a new one of the identical size and rating.
Fuses of the same amperage can be temporarily borrowed from another fuse location if a fuse goes out. Replace the fuse as soon as possible.
Note
- Before replacing a fuse check that the key has been removed from the ignition and that all the services are switched off and/or disengaged.
- When replacing a blown fuse, it is important to use only a fuse having the correct amperage rating. The use of a fuse with a rating other than indicated may result in a dangerous electrical system overload.
- If a properly rated fuse continues to blow, it indicates a problem in the circuit that must be corrected.
Instrument Panel Fuse Box Diagram
The fuse box is placed behind the dashboard panel.
| № | A | Fused component |
|---|---|---|
| 1 | 10 | Hazard warning lights |
| 2 | 20 | Horns, Cigar lighters, Stoplights, Boot release, Radio |
| 3 | 20 | Windscreen wipers |
| 4 | 20 | Roof light timer |
| 5 | 10 | Control lighting, Rear left and front right sidelights, RH numberptale light |
| 6 | 10 | Control lighting, Rear right and front left sidelights, LH numberptale light |
| 7 | 10 | RH dipped beam headlight |
| 8 | 10 | LH dipped beam headlight |
| 9 | 10 | RH main beam headlight |
| 10 | 10 | LH main-beam headlight (+ warning lamp) |
| 11 | 7.5 | Rear foglamp (+ warning lamp) |
| 12 | 30 | Heated rear window (+ warning lamp), Door mirror defrosters |
| 13 | 20 | Heating/air conditioning fan, Seat warming, Rear and front power windows, Radio |
| 14 | 20 | Engine cooling fan (6V) |
| 25 | Electric fan for radiator cooling | |
| 15 | 10 | Dashboard, Check Panel, Windscreen washers, Headlight washers, Reversing lights, Controlled damping suspension solenoid valves, Air conditioning compressor control, Engine electric fan control |
| 16 | 7.5 | Interior lights, Clock, Air conditioning control unit |
| 17 | 7.5 | Direction indicators, Door mirror adjustment, Controlled damping suspension |
| 18 | 20 | Door locks |
| 19 | 20 | Front foglamps (+ warning lamp) |
| N11 | Door locking control unit | |
| N13 | Hazard warning lights and direction indicators intermittence | |
| N14 | Electronic windscreen wiper intermittence | |
| I2 | Heated rear window relay | |
| I3 | Horn relay | |
| I17 | Fog-light relay | |
| I25 | Rear fog light relay | |
| I35 | Key-operated supply relay | |
| I49 | Dipped beam headlight | |
| I50 | Main beam headlight | |
| I64 | Sidelights relay | |
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Auxiliary Fusebox
| A | Colour | Fused component |
|---|---|---|
| 20 | Black | Headlight washer intermittence |
| 25 | Brown | Passenger side power window |
| 10 | Red | ABS |
| 25 | Blue | Rear power windows |
| 30 | Green | Electric seat adjustment |
| 30 | Red | Boot release |
| 20 | Brown | Controlled damping suspension |
| 30 | White | Sunroof |
| Black | Timer for headlight washer | |
| Green | Relay for radiator fan (only for TS model) |
Engine Compartment Fuses
1.8-2.0 TS Model
The fuses are located between the battery and the air-flow meter.
| № | Fused component |
|---|---|
| 1 | Control unit power supply |
| 2 | Lambda probe (for vehicles equipped with catalytic converter) |
| 3 | Fuel pump |
| R1 | Fuel pump relay |
| R2 | Main relay |
| R3 | Timing variator relay |
| R4 | Relay for services |
2.4 V6 Model
The following fuses are located in a box located on the rear wall of the engine compartment next to the tank.
| № | Fused component |
|---|---|
| 1 | Lambda probe (for vehicles equipped with catalytic converter) |
| 2 | Fuel pump |
| R1 | Fuel pump relay |
| R2 | Main relay |
| R3 | Relay for services |
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Heating-Ventilation System
For vehicles equipped with a heating-ventilation system, the fuses relating to the specific parts are housed in a container located on the front wall of the engine compartment.
| № | A | Fused component |
|---|---|---|
| 1 | 30 | Passenger compartment electric fan |
| 2 | 40 | Engine cooling liquid radiator electric fan (only for 2.4 V6 model) |
| 3 | 15 | Air conditioning system compressor |
| A | Relay for engine cooling liquid radiator fan (only for 2.4 V6 model) | |
| B | Slug for engine cooling liquid radiator fan | |
| C | Relay for air conditioning compressor cut-in | |
| D | Supplementary relay | |
The following fuses are located in the rear left-hand part of the engine compartment next to the brake-clutch fluid reservoir.
| № | A | Fused component |
|---|---|---|
| 1 | 50 | Heating-ventilatton system control unit |
| 2 | 40 | Engine cooling liquid radiator fan (only for 1.8 - 2.0 TS model) |
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