Components
- Make
- Fiat
- Model
- Seicento Factory Service Manual
- Year
- 1998–2010
- Section
- E7015 Alarm › Components
The alrm system is managed by the alarm control unit M30.
The control unitim is supplied directly from the battery on pin 3 of connector A and pin 7 of connector B (power supply for the turn lights).from the line protected by the fusee of junction unit B1.
The ignition switch power supply (15/54) reaches pins 4 and 12 of connector B of control unit M30 through the line protected by injection and CODE memory fuse B35.
Pin 9 of connector A is earther.
Control unit M30 controls the door closing through switches I16 and I17 that, if the door is open, send an earth signal to pin 8 of connector B. (the same switches that switch on the interior lighting; see also E2510 - CEILING LIGHTS).
The engine compartment is controlled by switch I10, that connects to pin 18 of connector B, the boot from rear/tailgate contact board D85, that connects to pin 17 of connect B.
Pin 1, connector A of M30 sends the signal to the alarm LED E40.
Pins 1 and 2 on connector B of M30output the signals for the turn lights (see E2020 - TURN/HAZARD LIGHTS).
Control unit M30 has a diagnostics system, that can be used connecting to alarm diagnostic socket R15; this receives signals from pin 6 on connector A of M30.
Alarm remote control receiver M35 is supplied direct from the battery to pin 3 from the line prcted by fuse F15 and to pin 7 from thge power supply line(INT) protected by fuse F22; both fuses are in junction unit B1.
Pin 4 of M35 is earther.
The 'lock doors'and 'unlock doors'signals are output from M35 (pins 5 and 6) (see E3040 -DOOR LOCKS).
Control unit M30 and receiver M35 are connected by a serial line from pin 2, connector A of M30 to pin 2 of M35.
COMPONENTS
| Code component | Description | Unit reference |
|---|---|---|
| B1 | Fuse carrier | 5505A |
| B5 | MAXI FUSE box | - |
| B35 | CODE and injection memories fuse | - |
| C10 | Front left earth | - |
| C30 | Rear left earth | - |
| D46 | Front/dashboard - rear connection | - |
| D85 | Rear/tailgate contact board | 5505A |
| E40 | Alarm LED | 5580E |
| H1 | Ignition switch | 5520A |
| I10 | Bonnet release switch | 5580E |
| I16 | Ceiling lamp switch on front left door. | 7040E |
| I17 | Ceiling lamp switch on front right door. | 7040E |
| M30 | Alarm control unit | 5580E |
| M35 | Alarm remote control receiver | 5580E |
| R15 | Alarm diagnostic socket | - |
Parts & tools for this job For 1998 Fiat Seicento
- TOOLDigital multimeterSearch: automotive digital multimeter
- PARTAssorted fuse kitSearch: car fuse assortment kit
- TOOLWire crimper and connector kitSearch: wire crimper connector kit
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