The Alfa Romeo 33, also known as the Alfa 33, is a compact family car produced by the Italian automaker Alfa Romeo from 1983 to 1989. The car is designed to replace the Alfasud, and is available as a five-door hatchback or a two-door coupe. It is the last mass-produced model by Alfa Romeo before the takeover by Fiat. The Alfa Romeo 33 is offered with a range of engines, including a 1.3-liter, 1.5-liter, 1.7-liter, and 1.8-liter engine.
The electrical system of the Alfa Romeo 33 is composed of various components that are vital to its proper functioning. Among the most important of these components are the fuse box and relay. In this article, we will explore the Alfa Romeo 33’s electrical system and provide information on the fuse box and relay, as well as other components related to them.
Alfa Romeo 33 Electrical System
The electrical system of the Alfa Romeo 33 is a complex network of wiring, fuses, and relays that work together to power various electrical components of the car. The system is divided into two main parts: the engine compartment and the cabin.
Fuse Box
The fuse box is an important part of the Alfa Romeo 33’s electrical system, as it protects the electrical components from damage due to short circuits and overloading. The fuse box is located in the engine compartment and contains a number of fuses that are designed to break in the event of an electrical overload. These fuses can be easily replaced and should be checked regularly to ensure that they are in good condition.
Relay
The relay is another important part of the Alfa Romeo 33’s electrical system. The relay is used to control various electrical components of the car, such as the headlights and the fuel pump. The relay is located in the engine compartment and is often found near the fuse box. If the relay is faulty, it can cause problems with the operation of the electrical components that it controls. Therefore, it is important to check the relay regularly and replace it if necessary.
Other Components
In addition to the fuse box and relay, there are several other components of the Alfa Romeo 33’s electrical system that are worth mentioning. These include the battery, alternator, starter motor, and various sensors. The battery is responsible for supplying power to the car’s electrical system, while the alternator is responsible for recharging the battery while the engine is running. The starter motor is used to start the engine, and the sensors are used to monitor various aspects of the car’s performance, such as the temperature and the speed.
(1983-1989) Alfa Romeo 33 fuse box and relay with Diagram
The fusebox is integral part of the support board and is located on left side of the intermediate bulkhead, in the engine compartment.
| No. | Amps | Assignment/Designation |
| 1 | 16A | Power windows |
| 2 | 16A | Door lock control unit |
| 3 | 16A | Heated rear window |
| 4 | 16A | Clock Horns-cigar lighter |
| 5 | 8A | Passenger compartment roof lamp Intermittence of direction and hazard lights Stop switch Roof lamp timer Trip Computer |
| 6 | 8A | Windscreen wiper Windscreen wiper electronic intermittence generator Windscreen wiper control Windscreen washer pump control Cluster |
| 7 | 8A | Heated rear window switch Hazard lights switch Heater switch Power window switch Power window Clock |
| 8 | 8A | Cut-off solenoid valve Reverse switch Trip Computer Check Control |
| 9 | 8A | Side lights left front and right rear R.H.number plate light Clock Check Control Cigar lighter |
| 10 | 8A | Side lights right front and left rear L.H. number plate light Check Control Trip Computer Headlights wiper Heater control lighting lamp Cluster lighting lamp Side light warning lamp |
| 11 | 8A | Right low beam |
| 12 | 8A | Left low beam Rear fog light switch |
| 13 | 8A | Right full beam |
| 14 | 8A | Left full beam Headlights warning lamp |
In conclusion, the Alfa Romeo 33 is a classic Italian car with a complex electrical system. The fuse box and relay are two important components of this system that help to protect the car’s electrical components from damage. In addition to these components, the battery, alternator, starter motor, and sensors are also important parts of the electrical system that should be regularly checked and maintained. By keeping these components in good condition, the Alfa Romeo 33 can continue to provide reliable and enjoyable driving for many years to come.
