Fiat BRAVO 1.9 JTD 16v – CAN CONNECTION LINES – – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION – WIRING DIAGRAM, LOCATION COMPONENTS, OPERATIONAL DESCRIPTION

WIRING DIAGRAM - CAN CONNECTION LINES - Fiat BRAVO 1.9 JTD 16v

CAN CONNECTION LINES - WIRING DIAGRAM Fiat BRAVO 1.9 JTD 16v

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COMPONENTS - CAN CONNECTION LINES - Fiat BRAVO 1.9 JTD 16v

Component code	Description	Reference to the operation
B002	JUNCTION UNIT UNDER DASHBOARD
B099	MAXI FUSE BOX ON BATTERY	-
C038	EARTH ON CENTRE TUNNEL	-
D004	FRONT/ENGINE COUPLING	-
D008	AIR CONDITIONING-HEATER FRONT COUPLING	-
D070	DRIVER'S SEAT COUPLING	-
D071	PASSENGER SEAT COUPLING	-
E050	INSTRUMENT PANEL
H001	IGNITION SWITCH
H066	DRIVER'S SEAT MOVEMENT CONTROLS	-
H067	PASSENGER SEAT MOVEMENT CONTROLS	-
K074	SLEWING SENSOR (VDC)
M001	BODY COMPUTER
M010	ENGINE MANAGEMENT ECU
M050	ABS CONTROL UNIT
M060	AIR BAG CONTROL UNIT
M070	CLIMATE CONTROL SYSTEM CONTROL UNIT
M075	ADDITIONAL HEATER CONTROL UNIT	-
M084	PARKING SENSOR CONTROL UNIT
M086	ELECTRIC STEERING CONTROL UNIT
M162	BLUETOOTH CONTROL UNIT
P020	RADIO
R010	MULTIPLE TESTER CONNECTION	-

COMPONENT LOCATION - CAN CONNECTION LINES - Fiat BRAVO 1.9 JTD 16v

CAN CONNECTION LINES - COMPONENT LOCATION Fiat BRAVO 1.9 JTD 16v

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Component code	Description	Reference to the operation
B002	JUNCTION UNIT UNDER DASHBOARD
B099	MAXI FUSE BOX ON BATTERY	-
C038	EARTH ON CENTRE TUNNEL	-
D004	FRONT/ENGINE COUPLING	-
D008	AIR CONDITIONING-HEATER FRONT COUPLING	-
D070	DRIVER'S SEAT COUPLING	-
D071	PASSENGER SEAT COUPLING	-
E050	INSTRUMENT PANEL
H001	IGNITION SWITCH
H066	DRIVER'S SEAT MOVEMENT CONTROLS	-
H067	PASSENGER SEAT MOVEMENT CONTROLS	-
K074	SLEWING SENSOR (VDC)
M001	BODY COMPUTER
M010	ENGINE MANAGEMENT ECU
M050	ABS CONTROL UNIT
M060	AIR BAG CONTROL UNIT
M070	CLIMATE CONTROL SYSTEM CONTROL UNIT
M075	ADDITIONAL HEATER CONTROL UNIT	-
M084	PARKING SENSOR CONTROL UNIT
M086	ELECTRIC STEERING CONTROL UNIT
M162	BLUETOOTH CONTROL UNIT
P020	RADIO
R010	MULTIPLE TESTER CONNECTION	-

DESCRIPTION - CAN CONNECTION LINES - Fiat BRAVO 1.9 JTD 16v

This vehicle is equipped with a CAN (Controller Area Network) system of electrical connections: it involves a software and hardware solution which is designed to efficiently manage the resources on the vehicle, allowing:- the sharing of information between the various electronic units;- the integration of several electronic units through one network;- a high network information exchange speed;- advantages in economic terms because there is a considerable reduction in the wiring/connectors inside the vehicle;- higher standards in terms of quality and reliability.The advantage of using a CAN system stems from the fact that communication takes place between numerous control units and consequently the number of signals to be managed is very high.For this reason the signals travel on a CAN type serial Bus where one wire is high level (H) and the other low level (L); these signals on the CAN Bus are differential, i.e. the value assigned to the bit is represented by the difference between the CAN-H and CAN-L voltage levels.The different electronic units which make up the system, known as network nodes, are connected to the CAN by means of communication interfaces known as transreceivers; these connection interfaces, integrated in the electronic units, constitute the gate for sending/reading the information at the CAN or at the serial lines.The exchange of information at CAN type serial lines is only possible using a transmission protocol which is the collection of rules that allow communication between two or more nodes by means of the exchange of information or data packages.The main element of the network is the Body Computer.The Body Computer node is entrusted with "waking up the network" at key on (if there is a problem with the Body Computer this task is entrusted to the instrument panel).The Body Computer also carries out the network checking functions which make it possible to provide information on:- the network activity status;- the functional failure status of the individual electronic units (nodes);- a possible CAN fault.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 specific structure adopted for this vehicle 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.Diagnosis of nodes connected to the network - B-CAN and C-CAN - is carried out via the specific diagnostic connectorAn ISO 5 serial A-BUS is also connected to the rain sensorPower is distributed via the junction units and/ or fuses boxes. These are connected to control elements (relays and static actuators) to ensure maximum electrical protection and minimum wiring complexity.

FUNCTIONAL DESCRIPTION - CAN CONNECTION LINES - Fiat BRAVO 1.9 JTD 16v

The Body Computer M1 is supplied directly from the battery via line protected by maxifuse B99 at pin 18 of connector F that interfaces 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: this signal is designed, amongst other things, to "wake the network up".Pins 10 and 19 of connector H of M1 supply the Body Computer with a reference earth.The nodes connected to Body Computer M1 - from pins 44 and 45 of connector A - via the high speed C-CAN are:- electric steering control unit M86 ;- yaw sensor K74 (only present on versions with ESP);- ABS/ESP control unit M50 ;- engine management control unit M10.Numerous nodes are connected with the Body Computer M1 via the low speed B-CAN - from pins 5-6, 24-25 of connector H of M1, as well as from pins 5-17 of connector H and 10-28 of connector D of the junction unit under the dashboard B2.These nodes are:- instrument panel E50- Air Bag control unit M60 .- climate control sytem control unit M70;- additional heater control unit M75 (if present)- radio/navigator unit P20- Bluetooth control unit M162- parking sensor control unit M84- seat control units H66, H67- diagnostic connector R10 (on right hand drive versions separate from the Body Computer)