Fiat BRAVO 1.9 JTD 8v – A-BUS SERIAL LINE – – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

WIRING DIAGRAM - A-BUS SERIAL LINE - Fiat BRAVO 1.9 JTD 8v

A-BUS SERIAL LINE - WIRING DIAGRAM Fiat BRAVO 1.9 JTD 8v

Get access to all wiring diagrams of the car

COMPONENTS - A-BUS SERIAL LINE - Fiat BRAVO 1.9 JTD 8v

Component code	Description	Reference to the operation
B002	JUNCTION UNIT UNDER DASHBOARD
B099	MAXI FUSE BOX ON BATTERY	-
C038	EARTH ON CENTRE TUNNEL	-
H001	IGNITION SWITCH
H005	STEERING COLUMN SWITCH UNIT
K062	ALARM VOLUMETRIC SENSORS ASSEMBLY	-
K125	RAIN AND DUSK SENSOR
M001	BODY COMPUTER
M047	TYRE INFLATION PRESSURE CONTROL UNIT
P090	ALARM SIREN	-

COMPONENT LOCATION - A-BUS SERIAL LINE - Fiat BRAVO 1.9 JTD 8v

A-BUS SERIAL LINE - COMPONENT LOCATION Fiat BRAVO 1.9 JTD 8v

Get access to all wiring diagrams of the car

Component code	Description	Reference to the operation
B002	JUNCTION UNIT UNDER DASHBOARD
B099	MAXI FUSE BOX ON BATTERY	-
C038	EARTH ON CENTRE TUNNEL	-
H001	IGNITION SWITCH
H005	STEERING COLUMN SWITCH UNIT
K062	ALARM VOLUMETRIC SENSORS ASSEMBLY	-
K125	RAIN AND DUSK SENSOR
M001	BODY COMPUTER
M047	TYRE INFLATION PRESSURE CONTROL UNIT
P090	ALARM SIREN	-

DESCRIPTION - A-BUS SERIAL LINE - Fiat BRAVO 1.9 JTD 8v

This vehicle is equipped with a CAN (Controller Area Network) system of electrical connections.The different electronic units that make up the system, known as network "Nodes" are connected to the CAN; the main element of the network is the Body Computer.The various electronic units process the various signals coming from the corresponding sensors both for their own management and for other control units to which they are sent via the CAN.The structure consists of two CAN communication networks which connect nodes belonging to two different areas:- C-CAN for dynamic vehicle control (high speed): bus CAN-H and CAN-L;- B-CAN for the management of standard body functions (low speed): bus CAN-A and CAN-B;the two CAN communication networks are connected to one another by a gateway for transferring joint information, located in the Body Computer Node.A special A-BUS ISO 5 serial line manages the connection with:- automatic wiping (rain sensor);- automatic lighting (dusk sensor);- alarm (siren and volumetric/anti-tilt sensors);- TPMS tyre pressure monitoring system;

FUNCTIONAL DESCRIPTION - A-BUS SERIAL LINE - Fiat BRAVO 1.9 JTD 8v

The Body Computer M1 receives a direct supply from the battery via the line protected by maxifuse B99 at pin 18 of connector F of the interface with the junction unit under the dashboard B2; the ignition-controlled supply (INT) reaches pin 9 of connector F of the interface with the junction unit B2.The A-BUS serial line is connected from pin 34 of connector B of the Body Computer M1 with the alarm sensor P90 - pin 2 - and with the steering column switch unit H5 - pin 2 of connector A; the latter manages the automatic wiping signal (rain sensor) and automatic lighting (dusk sensor).The A-BUS serial line is connected from pin 10 of connector D of the Body Computer M1, with the alarm volumetric/anti tilt sensors K62 - pin 4 - and with the rain and dusk sensors K125, pin 3.The same line is also connected with pin 18 of control unit M47 of the TPMS.