Workshop Manuals Factory service & repair Fiat
01 General information02 Specifications03 Manufacturing data and tolerances04 Tightening torques05 Fluids and lubricants06 Maintenance07 Diagnostic checks08 Engine09 Clutch10 Gearbox and differential11 Axles and driveshafts12 Brakes13 Steering14 Suspension and wheels15 Heating, air conditioning and auxiliary units16 Electrical equipment17 Body fittings18 Body panels and frame19 Wiring diagrams and electrical functions20 Wiring harnesses21 Connectors and pin-outs22 Fault diagnosis23 Special tools
Fiat Ulysse Factory Service Manual (2002-2010)19 · Wiring diagrams and electrical functions
19 · Electrical

Central locking functional description

Make
Fiat
Model
Ulysse Factory Service Manual
Year
2002–2010
Section
Electrically activated devices › Central locking functional description
Wiring diagrams and electrical functionsCentral locking functional description

CENTRAL LOCKING FUNCTIONAL DESCRIPTION

2.0 16V JTD, 2.2 16V JTD · MY 2005

The central locking is managed by the body computer node M001.

The steering wheel node control unit M093 receives the door open/closed signal from the remote control.

The (door opening or closing) command is transmitted, via the CAN, from the steering wheel node control unit M093 (pins 1 and 3 connector A) to the Body computer node M001 (pins 5 and 3 connector G respectively); in addition, the latter (pin 11 connector B and pin 1 connector G) provide it with a power supply through two lines (pin 5 connector A and pin 4 connector D respectively) of which only the second is protected by fuse F04.

The command for opening/closing the doors can also be sent by the internal switch I110.

Pressing the special switch on unit I110 (pin 6) sends an earth signal indicating that the locks have been locked/unlocked from pin 6 to the body computer node M001 (pin 28 connector I). The body computer M001 (pin 9 connector D and pin 12 connector F) also provide a power supply for unit I110 (pins 1 and 4 respectively).

The electric motors for the rear locks N055, N056 (pins 3, 1) and those for the front locks N050, N051 (pins 5, 3) receive a power supply from the Body computer node M001 (pins 13 and 15 connector F respectively), which operates the opening or closing of the doors depending on the command received.

The front locks N050, N051 communicate the following to the body computer M001:

- from pin 4, the locked/unlocked door status, to pins 27 and 29 respectively of connector L;

- from pin 6, the open/closed door status, to pins 4 and 5 respectively of connector L;

The opening of the sliding side doors is signalled (pin 1) by the specific switches I018 (left) and I019 (right) to the body computer M001 (pins 34 and 33 connector L respectively).

The electric boot lock N057, in addition to be controlled (pin 1) by the body computer M001 (pin 35 connector I), sends (pin 3) a boot lid closing signal (pin 13 connector L).

The signal coming from the boot lid switch I011 (pin 1) is also transmitted to the Body computer node M001 (pin 10 connector I).

Parts & tools for this job For 2002 Fiat Ulysse

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