Components - POWER SUPPLY - Fiat DOBLO 1.9 JTD 8V da 12/03
| Component code | Description | Reference to the assembly |
| A001 | BATTERY | |
| A20 | STARTER MOTOR | |
| B001 | JUNCTION UNIT | |
| B2 | JUNCTION UNIT UNDER DASHBOARD | |
| C2 | BATTERY EARTH ON ENGINE | |
| C3 | BATTERY EARTH ON BODYSHELL | |
| D29 | ENGINE CABLES/ENGINE SERVICES CABLE COUPLING | |
| H001 | IGNITION SWITCH | |
| M001 | BODY COMPUTER |
| Component code | Description | Reference to the assembly |
| A001 | BATTERY | |
| A20 | STARTER MOTOR | |
| B001 | JUNCTION UNIT | |
| B2 | JUNCTION UNIT UNDER DASHBOARD | |
| C2 | BATTERY EARTH ON ENGINE | |
| C3 | BATTERY EARTH ON BODYSHELL | |
| D29 | ENGINE CABLES/ENGINE SERVICES CABLE COUPLING | |
| H001 | IGNITION SWITCH | |
| M001 | BODY COMPUTER |
The entire electrical system has been designed and implemented with a view to the most up-to-date safety and protection standards and is particularly well-protected against fire.Two main types of protection are provided:- active protection, to reduce possible fault causes at source;- passive protection, to minimise the effects of a fault.The first category covers careful design of wiring circuits, including well thought-out positioning and fastening and the definition of properly shielded and protected layouts.For this reason, the alternator and motor wires have been modified and protective caps adopted.Passive protections include all actions (always adopted on vehicles in any case) to reuduce high fault currents (overload and short-circuit).The ratings of all fuses in the system have been selected according to the nominal power uptake of any loads that may be activated simultaneously and to ensure cut-in in the case of a general short-circuit.All systems and electrical equipment are supplied by the battery at a voltage of 12V.The battery is, in turn, recharged by the alternator during engine operationThe main supply lines are protected by fuses grouped in a junction box located near the battery and supplied directly by it.Some circuits are continuously supplied, even with the car at a standstill and the key out because they are connected directly to the battery.Other circuits are supplied by turning the ignition key to various positions:- insert the key and turn it through one click to ON. This supplies numerous circuits that are described as ignition-operated (INT and 15/54 lines);- the second position - AVV (starting) - supplies the starter motor; (line "50"), disconnecting some other circuits (those which absorb a lot of power) thereby ensuring the maximum current flow to the actual starter motor; ("INT/A" line);- When the key is removed by turning backward (and pressing a button), PARK position is selected to ensure the side lights are activated even with the key out ( STAZ and POS lines);767
All electrical systems and circuits are supplied by battery A01.The power supply for the various devices is managed by the two junction units in the engine compartment B01 and under the dashboard B02 that contain the fuses and the relays that allow the corrcet operation of the electrical equipment.Other circuits are supplied by turning the ignition key H01 to various positions:- in the ON position, numerous circuits and services receive an ignition-operated power supply protected (INT line) by the fuses in the junction unit B01 (line 15/54);- the starter motor (line 50) is operated in AVV position;- the side lights (STAZ and POS lines) are supplied in PARK position.
