Workshop Manuals Factory service & repair Fiat
01 00 General information and technical data02 10 Engine03 18 Clutch04 21 Gearbox and differential05 27 Axle06 33 Braking system07 41 Steering08 44 Suspension and wheels09 50 Auxiliary units10 55 Electrical equipment11 70 Bodywork12 Diagnosis13 Tests14 Wiring diagrams
Fiat Seicento Factory Service Manual (1998-2010)14 · Wiring diagrams
14 · Electrical

Components

Make
Fiat
Model
Seicento Factory Service Manual
Year
1998–2010
Section
E7015 Alarm › Components
Wiring diagramsComponents

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 componentDescriptionUnit reference
B1Fuse carrier5505A
B5MAXI FUSE box-
B35CODE and injection memories fuse-
C10Front left earth-
C30Rear left earth-
D46Front/dashboard - rear connection-
D85Rear/tailgate contact board5505A
E40Alarm LED5580E
H1Ignition switch5520A
I10Bonnet release switch5580E
I16Ceiling lamp switch on front left door.7040E
I17Ceiling lamp switch on front right door.7040E
M30Alarm control unit5580E
M35Alarm remote control receiver5580E
R15Alarm diagnostic socket-

Parts & tools for this job For 1998 Fiat Seicento

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