MULTI-FUNCTION COMPONENTS

Description 5505A

BODY COMPUTER NODE

Specifications

The Body Computer Node (NBC) is an electronic component connected to the vehicle serial networks which manages the basic functions of the Mini F.L.Ore.N.C.E structure (interior/exterior lighting, immobilizer, fault diagnosis, heated rear windscreen, door locking, alarm, fuel level) and houses the gateway between the B-CAN and the C-CAN.

The NBC also carries out interconnection functions between the dashboard, front and rear wiring and is connected to the Dashboard Control Unit (CPL) by means of a connector at the front.

There is also a fixed EOBD connector at the front capable of carrying out the fault diagnosis via the K line for the Engine Management Node and the systems not connected to the B-CAN line (e.g. the air bag) and via the B-CAN line for the nodes connected to it. There is a possible assembly programme for the latter.

General functions of the body computer node

To sum up, the NBC carries out the following functions:

- Receives and transmits information on the B-CAN (e.g.: diagnosis, warning lights, controls, data);

- Receives and transmits information on the C-CAN;

- Houses the gateway for communication between the C-CAN and B-CAN;

- Is connected to the dashboard, front and rear wiring;

- Allows interface for fault diagnosis (EOBD);

- Low consumption supply mode management (Logistic Mode);

- Is connected to the CPL to take supplies/signals and operate relays.

The following functions are included:

- management of the courtesy lights with a timer and dimmer function;

- management of the on/off outputs at the relays: headlamp washer pump, main beam headlamps, fog lights, dipped headlamps, rear windscreen and services,

- on/off management of left/right direction indicators and hazard warning lights;

- on/off output management directly at loads and light check function: front and rear side lights (left and right), front, rear and side direction indicators (left and right), number plate lights (left and right), brake lights (left and right), rear fog lamps (left and right);

- management of the on/off outputs at the loads: hazard warning LED, etc.;

- acquisition and repetition of vehicle speed signal;

- management of the driver for the ideogram lights;

- management of the driver for SBMT (switching off loads with ignition OFF);

- recovery serial line (W) management to engine management control unit (immobilizer);

management of serial line (A-BUS) to rain/dusk sensor, steering column switch unit, volumetric alarm control unit and tyre pressure control unit;

- entire system master: management of slave nodes in its direct jurisdiction and monitoring by other master nodes, monitoring and management of protocol errors, timer control;

- entire system fault diagnosis: collection of diagnostic information, management of fault diagnosis through EXAMINER.;

- acquisition of on/off signals: control of dipped headlamps, control of main beam headlamps, control of boot lock opening, control of boot lock locking, handbrake control, hazard warning lights control, left and right rear fog lamps control, fog lights relay control, left direction indicators control, right direction indicators control, parking lights control, side lights control, city control, steering column switch unit auto control, headlamp washer control, FIS control, boot button, bonnet button, front brake pad wear, brake fluid level, reverse gear engaged;

- acquisition of analogue signals: fuel level, alternator voltage (D+), battery voltage;

- recognition of brake lights fuse status, centre courtesy light control, left and right spot lights control, brake lights controls, acquisition of signals for lock sensors from doors;

- preparation for possible inclusion of new electric functions.

Refer to the pin out described later on for the description of further functions in detail.

1 - Body Computer Node (NBC)

2 - Dashboard Control Unit (CPL), described below

NBC+CPL = NPL

Body computer connections

The Body Computer connections are illustrated in the diagram.

A - Body Computer Node (NBC), front view

B - Body Computer Node (NBC), rear view

1 - Connector F (connection with the dashboard control unit)

2 - Connector D/E

3 - Connector C (EOBD diagnostic socket)

4 - Connector A/B

5 - Connector G/H/I

Body computer node pin out

Connector A/B (20 + 20 way), front wiring

Connector C (16-way), EOBD diagnostic socket

Connector D/E (20 + 20 way), rear wiring

Connector F (20-way), interconnection with CPL (dashboard control unit)

Connector I/H/G (9+18+9 way), dashboard wiring

DASHBOARD CONTROL UNIT (CPL)

Specifications

The CPL is a junction unit with circuits, installed on the driver''s side of the dashboard, which contains fuses and relays and performs an interconnecting function for the front, dashboard and rear wiring.

It is also connected to the Body Computer Node via a connector at the back.

The CPL + NBC supply status is known as the Dashboard Node (NPL).

1 - Diagnostic socket EOBD connector

2 - Body Computer (NBC)

3 - Dashboard Control Unit (CPL)

4 - Reserve fuses

5 - System protective fuses

6 - Relays

7 - Fuse extraction pliers

The front view of the control unit is illustrated in the diagram below.

1 - Reserve fuses

2 - Protective fuses

3 - Heated rear windscreen relay (T11, 30A)

4 - Dipped headlamps relay (T01, 30A)

5 - Services 1 relay (T12, 30A)

6 - Services 2 relay (T13, 50A)

A - connector A

B - connector B

C - connector C

D - connector D

The rear view of the control unit is illustrated in the diagram below.

E - connector E (connection with the Body Computer)

F - connector F

G - connector G

H - connector H

Dashboard control unit pin out

Connector A (20 way), front wiring

Connector B (2 way), rear wiring

Connector C (2 way), front wiring

Connector D (32 way), rear wiring

Connector E (20 way), connection with NBC (Body Computer)

Connector F/G (9+9 way), dashboard wiring

Connector H (20 way), dashboard wiring

Fuses

The CPL dashboard control unit protects the electrical system through the following fuses:

For further details,

See E1010 POWER SUPPLY

ENGINE COMPARTMENT CONTROL UNIT (CVM)

Specifications

The CVM is a junction unit with circuits, installed on the battery container, which contains fuses and relays and performs an interconnecting function for the front wiring, engine pre-wiring and radiator pre-wiring.

This wiring is connected to the control unit through fixed couplings. These couplings can be easily reached as they are positioned to facilitate fitting or dismantling operations.

There is a fastening on the lower cover for sealed fuse holder connectors (maxi and auto type).

1 - Engine compartment control unit (CVM)

2 - System protective maxifuse

3 - Maxi type relay

4 - Micro type relay

5 - System protective mini fuses

6 - Connecting cable between battery (CBA) and engine compartment CVM

The maxi fuses are grouped together in both the battery control unit (CBA) and the engine compartment control unti (CVM) connected directly to the positive battery pole and protecting the main supply lines.

The engine compartment control unit (CVM) is illustrated below.

Fuses

Relays

The following relays are housed in the engine compartment control unit:

For further details,

See E1010 POWER SUPPLY

Rear view

A: connector A

B: connector B

C: connector C

D: connector D

E: connector E (radiator cable)

X: connector X (supply from junction unit on battery)

Engine compartment junction unit pin out

Connector A (32 way), front wiring

Connector B (3 way), front wiring

Connector C (32 way), engine wiring

Connector D (2 way), front wiring

Connector E (2 way), radiator wiring

Connector X (2 way), battery positive

BATTERY CONTROL UNIT (CBA)

Specifications

The Battery Control Unit is a power distribution control unit located on the battery.

It includes protective fuses (MIDI/MEGA), the connection to the postive battery pole and to the starting/reacharging lead.

It has a plastic type protection that prevents accidental contact with the positive battery pole.

It should be possible to inspect the control unit to allow emergency starting.

On the 2.2 petrol model, the CBA is designed to include an automatic battery disconnection device in series with the battery terminal capable of interrupting the starter motor/recharging lead power supply when the intertia switch is activated.

The CBA is connected to the front wiring, to the CVM supply lead and to the positive battery lead for the starting/recharging circuit.

The Battery Control Unit components are illustrated below.

1 – F70

2 - F73 (except for the 2.2 petrol version)

3 – F72

4 – F71

5 - SB Automatic battery disconnecter (only valid for 2.2 petrol version)

Fuses

For further details,

See E1010 POWER SUPPLY

On the 2.2 petrol versions, the protective fuse for the Electric Steering Node (NGE) is outside the Battery Control Unit.

The Battery Control Unit connections are illustrated in the diagram.

1 - Connector A

2 - Connector D

3- Connector C

4 - Connector B

5 - Battery positive

6 - Connector E (Battery positive for stater motor/recharging and, on the 2.2 petrol version, NGE protective fuse)

7 - Connector F (battery disconnecter relay engagement signal)

LUGGAGE COMPARTMENT CONTROL UNIT (CVB)

Specifications

The CVB is a plastic support, fitted on the left side of the boot, on which the fuses and relays for the optional services are installed.

The component is supplied wired on the rear wiring and has a secondary lock.

The luggage compartment control unit (CVB) is illustrated below.

Fuses

Relays

The following relays are housed in the luggage compartment control unit:

For further details,

See E1010 POWER SUPPLY

DOOR NODES

The control functions for the four doors and the tailgate are carried out by several specific CAN nodes which act in connection with the Body Computer:

- DRIVER''S DOOR NODE (NPG)

- PASSENGER DOOR NODE (NPP)

- LUGGAGE COMPARTMENT NODE (NVB) (which controls the rear doors)

The door nodes are located inside the relevant door panel and the luggage compartment node is under the rear seats, as illustrated:

1 - Body Computer

2 - Driver''s door node

3 - Passenger door node

4 - Luggage compartment node

Driver''s door node

The driver''s door node is located inside the driver''s door panel.

Its functions are listed below:

- Locking/unlocking doors/boot and fuel flap

- Front electric windows with manual up/down and automatic and anti-crush safety function

- Rear electric windows with manual up/down and automatic and anti-crush safety function

- Inhibition of rear electric windows from driver''s seat

- Electric exterior mirrors

- Door mirrors defrosting timed managment

- Door mirrors folding

- Acquisition and management of outside temperature

- Opening/closing of windows by remote control and T.E.G. back up insert

- Dead-lock engagement/release

- Vehicle protection system signals

Driver''s door node

Connector D

Connector C/B/A

Connector E (connection with door mirror)

Some of the CAN nodes, including the door nodes, are programmed with default settings that the customer will find when they purchase the vehicle. If the door nodes are being replaced, the Parts Dept. will send a pristine component: once fitted, the data memorized in the body computer must be transferred to it by carrying out the "PROXI ALIGNMENT" procedure using the Examiner.

Passenger door node

The passenger door node is located inside the passenger door panel.

Its functions are listed below:

- Locking/unlocking the doors/boot

- Front electric window with manual up/down and automatic and anti-crush safety function

- Opening/closing of windows by remote control and T.E.G. back up insert

- Electric exterior mirrors

- Door mirrors defrosting timed managment

- Door mirrors folding

- Dead-lock engagement/release

Passenger door node

Connector D

Connector C/B/A

Connector E (connection with door mirror)

Some of the CAN nodes, including the door nodes, are programmed with default settings that the customer will find when they purchase the vehicle. If the door nodes are being replaced, the Parts Dept. will send a pristine component: once fitted, the data memorized in the body computer must be transferred to it by carrying out the "PROXI ALIGNMENT" procedure using the Examiner.

Luggage compartment node

The luggage compartment node is located under the rear seats.

Its functions are listed below:

- Locking/unlocking the doors/boot

- Rear electric windows with manual up/down and automatic and anti-crush safety function

- Inhibition of rear electric windows from driver''s seat

- Window opening/closing by remote control

- Dead-lock engagement/release

Connector A

Connector B