Description And Operation

The electrical system is designed to increase the car's safety level and prevent the possibility of fires and other consequences of electrical malfunctions. State- of- the-art connectors have been introduced to rule out the possibility of many connection defects.

The power distribution is supplied via control units and / or fuses, connected to the control elements (relay pressure transducers) to ensure the highest level of power protection and the minimum degree of wiring complexity.

The main security solutions are adopted:

• Power supply protection by maxifuse for the interruption of the electrical system, in case of short circuit
• The lay-out of the entire system is optimized for the reduction of risk of damage in case of damage or accident
• The laying of the harnesses has been optimized by reducing incorrect placements, and noise due to vibration
• All harnesses are high abrasion resistance
• In the engine compartment harnesses are of special, high temperature resistance and are protected with sheaths or pipes
• The harnesses in the passenger compartment are protected by corrugated tubes and tapes with micro-fleece to reduce noise
• The main connections are equipped with anti-slip device terminals (secondary lock) and a safety lock (lock lever) which avoids any deformation of the terminals.

All systems and electrical systems are supplied by the battery with the voltage of 12 V. The battery in turn is recharged during operation of the generator.

The versions with Start & Stop, the battery status is monitored continuously by a special sensor battery (Intelligent Battery Sensor / IBS) located on the negative post of the battery.

The main supply circuits are protected by a "MAXIFUSE", contained in the box on the positive battery terminal.

Some circuits employ "J-House" fuses: this is a cartridge type fuse with the characteristics to ensure a lower voltage drop for the protection of circuits that absorb high current.

Other circuits are fed by turning the key in the ignition switch in different positions:

• Inserting and turning the key to the first click goes to ON and feeds many circuits, which are, in fact, called "locked" (line "INT")
• The second detent - AVV - instead feeds the starter, however, by disconnecting some circuits (those that absorb more power), thus ensuring the maximum flow of current to the starter motor itself (line "INT / A").