The Alfa Romeo GT is a sleek and sporty coupe that is produced by the Italian automaker Alfa Romeo from 2003 to 2010. The car features a range of electrical components, including the fuse box and relay, which are essential for the proper functioning of the vehicle’s electrical systems. In this article, we will take a closer look at the Alfa Romeo GT 2003-2010 and explore its electrical components, including the fuse box and relay.
Fuse Box
The Alfa Romeo GT 2003-2010 features a fuse box that is located under the dashboard on the driver’s side of the vehicle. The fuse box is responsible for protecting the vehicle’s electrical components by preventing excessive current from flowing through the system. If a component in the electrical system fails or draws too much current, the corresponding fuse will blow, breaking the circuit and preventing damage to other components in the system.
The fuse box in the Alfa Romeo GT 2003-2010 contains fuses for various electrical components, including the lights, power windows, and air conditioning system. The fuse box also contains relays, which are electrical switches that help control various components in the car’s electrical system, such as the fuel pump and cooling fan. It is important to regularly check the fuses in the fuse box to ensure that they are in good condition and to replace any blown fuses promptly.
Relay
Relays are an essential component of the Alfa Romeo GT 2003-2010’s electrical system. These electrical switches help control various components in the car, such as the fuel pump and cooling fan. The relays are located in the fuse box and can be easily replaced if they fail. It is important to ensure that the correct relay is used when replacing a faulty relay, as using the wrong type of relay can cause damage to other components in the electrical system.
One common issue with relays in the Alfa Romeo GT 2003-2010 is a failure to switch on or off. This can be caused by a number of factors, including a faulty relay, a bad ground connection, or a problem with the wiring. If you are experiencing problems with a component in your car’s electrical system, it is important to check the relays in the fuse box to ensure that they are functioning properly.
(2003-2010) Alfa Romeo GT fuse box and relay with Diagram
Engine Compartment Fuse Box
Access is gained to the control box next to the battery releasing the perimetral catches (A) and removing the protective cover (B).
| No. | Amps | Assignment/Designation |
| 1 | 50A | Diesel: Glow Plug Preheating |
| 2 | 50A | Dashboard Control Unit |
| 3 | 30A | Selespeed Transmission Pump |
| 4 | 60A | ’03→?: ABS Control Unit |
| 50A | ?→’08→?: ABS Control Unit | |
| 5 | 40A | Climate control fan |
| 6 | 40A | Diesel: Radiator Fan (First Speed) |
| 30A | Petrol: Radiator Fan (First Speed) | |
| 7 | 50A | Petrol: Radiator Fan (Second Speed) |
| 60A | Diesel: Radiator Fan (Second Speed) | |
| 8 | 30A | Additional Heater (PTC) |
| 9 | 20A | Headlight Washer |
| 10 | 15A | Horn |
| 11 | 15A | Secondary Services (Electronic Injection) |
| 14 | 10A | Right Main-Beam Headlight |
| 15 | 10A | Left Main-Beam Headlight |
| 16 | 7.5A | Electronic Injection System |
| 17 | 7.5A | Primary Services (Electronic Injection) |
| 18 | 7.5A | Electronic Injection Control Unit (+30) |
| 19 | 7.5A | Climate Control Compressor |
| 20 | 20A | Diesel: Heated Fuel Oil Filter |
| 21 | 15A | Fuel Pump, Ignition Coils |
| 22 | 15A | Petrol: Injectors |
| 20A | Diesel: Injectors | |
| 23 | – | – |
| 30 | 15A | Fog Lights |
| 10A | Fog Lights | |
| Relay | ||
| R2 | High Beam | |
| R3 | Horn | |
| R5 | Compressor | |
| R6 | Radiator Fan 1st Speed | |
| R7 | Radiator Fan 2st Speed | |
| R8 | Additional Heater (PTC) | |
| R9 | Fuel Injection Main | |
| R10 | Fuel Pump | |
| R14 | Fog Lamp | |
| R17 | Headlamp Washer | |
| R19 | Diesel: Heated Fuel Oil Filter | |
| R20 | – | |
Engine Compartment Fuse Box No.2 (only 3.2)
| No. | Amps | Assignment/Designation |
| 1 | 7.5A | Compressor |
| 2 | 15A | High Beam |
| 3 | 15A | Horn |
| 4 | 15A | Fuel Pump |
| 5 | 20A | Headlight Washer |
| 6 | 7.5A | Electronic Injection System |
| 7 | 15A | Fog Lights |
| 8 | 7.5A | Primary Services (Electronic Injection) |
| 9 | 15A | Secondary Services (Electronic Injection) |
| 10 | 15A | Coils, Injectors |
| 11 | 7.5A | 15/54 |
| 12 | 7.5A | Electronic Injection System (15/54) |
| Relay | ||
| R2 | High Beam | |
| R3 | Horn | |
| R5 | Compressor | |
| R9 | Injectors | |
| R10 | Fuel Pump | |
| R14 | Fog Lights | |
| A | Radiator Fan Relay No.1 | |
| B | Radiator Fan Relay No.2 | |
| C | Radiator Fan Relay No.2 | |
| D | Selespeed Pump | |
Passenger Compartment Fuse Box
To gain access to the fuses in the fuse box on the dashboard, loosen the two retainers (A) and remove the protective cover (B).
| No. | Amps | Assignment/Designation |
| 12 | 10A | Right Dipped-Beam Headlight |
| 13 | 10A | Left Dipped-Beam Headlight, Headlight Aiming Device |
| 31 | 7.5A | Climate Control System, Heater Unit Relay Coils |
| 32 | 15A | Selespeed Transmission, Key-Operated +30 |
| 33 | 20A | Rear Left Power Window |
| 34 | 20A | Rear Right Power Window |
| 35 | 7.5A | Reversing Light, Cruise Control, Climate Control System Control Lighting |
| 36 | 10A | Trailer Control Unit |
| 37 | 10A | Braking Light, Instrument Cluster |
| 38 | 20A | Central Door Locking |
| 39 | 15A | Climate Control System, Radio, Navigator, Services + 30, Volumetric Sensors, EOBD System Diagnosis Socket, Cell Phone Provision, Driver’s Door Control Unit, Boot Control Unit |
| 40 | 30A | Rearscreen Heating |
| 41 | 7.5A | Heated Mirrors, Heated Nozzles |
| 42 | 7.5A | VDC System Sensor, Steering Angle Sensor, ABS Control Unit |
| 43 | 30A | Windscreen, Rearscreen Washer (Two-Way Pump) |
| 44 | 20A | Cigar Lighter |
| 45 | 15A | Heated Seats |
| 46 | 15A | Sunroof |
| 47 | 20A | Driver’s Door Control Unit Supply |
| 48 | 20A | Passenger’s Door Control Unit Supply |
| 49 | 7.5A | Secondary Services, Control Lighting |
| 50 | 7.5A | Air Bag Control Unit |
| 51 | 7.5A | Selespeed Transmission |
| 52 | – | – |
| 53 | 10A | Hazard Lights, +30 Direction Indicators, Instrument Cluster |
| 60 | 25A | – |
| 61 | 15A | – |
| 62 | 15A | Electric Windows Control units |
| 63 | 20A | – |
Control Box on Battery Positive Pole
To gain access to the fuses in the fusebox on the battery post, remove the protective cover by pressing the opening catches (front).
| No. | Amps | Assignment/Designation |
| 70 | 125A | Petrol: Engine Compartment Control Box |
| 150A | Diesel: Engine Compartment Control Box | |
| 71 | 70A | Dashboard Control Unit |
| 72 | 30A | Ignition Switch |
| 73 | 30A | Additional Heater |
In conclusion, the Alfa Romeo GT 2003-2010 is a stylish and sporty car that features a range of electrical components, including the fuse box and relay. These components are essential for the proper functioning of the vehicle’s electrical system and should be regularly checked and maintained to ensure that they are in good working condition. If you are experiencing any issues with your car’s electrical system, it is important to consult a qualified mechanic who can diagnose and repair the problem.
