CITROEN XSARA Training manual

CITROËN

TECHNICAL TRAINING

MULTIPLEXED BSI

OPERATING PRINCIPLE

FOR THE

XSARA PICASSO AND XSARA

CITROËN UK LTD

221 BATH ROAD

SLOUGH SL1 4BA

_________________

DEALER PERSONNEL

DEVELOPMENT AND

TRAINING

_________________

 CITROËN UK LTD. Reproduction whether partial or in full without

written permission from Citroën UK Ltd is forbidden

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

DOCUMENT SUMMARY

MULTIPLEXED BSI OPERATING PRINCIPLE

for the

XSARA PICASSO AND XSARA

The aim of this document is to explain certain functions of the BSI (Built-in Systems Interface). After presenting multiplexing, the following subjects will be dealt with:

Electrical functions of the XSARA and XSARA PICASSO.

− Signalling.

− Interior lighting.

− Driver's information.

− Visibility.

− Locking and unlocking.

− Automatic climate control.

− Immobilisation.

− Radio system.

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

CONTENTS

PARTS 1

MULTIPLEXING / BSI XSARA AND XSARA PICASSO

CHAPTER 1 : MULTIPLEXING................................................. PAGE 1

I - BRIEF DEFINITION....................................................................... PAGE 1

II - PURPOSE OF MULTIPLEXING..................................................... PAGE 1

III - DESIGN OF THE XSARA PICASSO AND XSARA MULTIPLEXED

NETWORK.................................................................................... PAGE 2

IV - THE VAN PROTOCOL .................................................................. PAGE 3

V - LOCATION OF MULTIPLEXED ECUS ........................................... PAGE 5

CHAPTER 2 : BUILT-IN SYSTEMS INTERFACE ..................... PAGE 7

I - FUNCTIONS CONTROLLED BY THE BSI ON THE XSARA PICASSO

AND THE XSARA ......................................................................... PAGE 8

II - BSI LAYOUTS ON THE XSARA PICASSO AND XSARA................. PAGE 9

III - BSI INPUTS.................................................................................. PAGE 11

IV - BSI OUTPUTS.............................................................................. PAGE 13

V - LOCATION AND TYPE OF THE CONNECTORS ON THE BSI ........ PAGE 16

VI - CHANNEL ALLOCATION ON THE BSI .......................................... PAGE 17

VII - OPERATING MODES ................................................................... PAGE 23

VIII - AFTER-SALES OPERATIONS, ACCESSORIES............................. PAGE 24

CHAPTER 3 : ELECTRICITY .................................................... PAGE 29

I - LAYOUT DIAGRAM ...................................................................... PAGE 29

II - PARTS LIST ................................................................................. PAGE 30

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

CONTENTS

PART 2

SIGNALLING XSARA AND XSARA PICASSO

CHAPTER 1 : GENERAL .......................................................... PAGE 33

I - FOREWORD ................................................................................. PAGE 33

II - GENERAL LAYOUT....................................................................... PAGE 33

CHAPTER 2 : OPERATING PRINCIPLE ................................... PAGE 35

I - INDICATOR FUNCTION................................................................. PAGE 35

II - HAZARD WARNING LAMPS FUNCTION........................................ PAGE 35

III - FAULTY BULB DETECTION FUNCTION ........................................ PAGE 36

CHAPTER 3 : ELECTRICITY .................................................... PAGE 37

I - LAYOUT DIAGRAM ....................................................................... PAGE 37

II - PARTS LIST .................................................................................. PAGE 38

PART 3

INTERIOR LIGHTING XSARA AND XSARA PICASSO

CHAPTER 1 : GENERAL .......................................................... PAGE 41

I - FOREWORD ................................................................................. PAGE 41

II - GENERAL LAYOUT....................................................................... PAGE 43

CHAPTER 2 : OPERATING PRINCIPLE ................................... PAGE 45

CHAPTER 3 : ELECTRICITY .................................................... PAGE 47

I - LAYOUT DIAGRAM ....................................................................... PAGE 47

II - PARTS LIST .................................................................................. PAGE 48

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

CONTENTS

PART 4

DRIVER'S INFORMATION XSARA PICASSO

CHAPTER 1 : GENERAL.......................................................... PAGE 53

I - FOREWORD ................................................................................ PAGE 53

II - LAYOUT....................................................................................... PAGE 54

III - XSARA PICASSO CONTROL PANEL ........................................... PAGE 61

CHAPTER 2 : MESSAGES AND WARNINGS FUNCTION ....... PAGE 65

I - DISPLAY ...................................................................................... PAGE 65

II - PRIORITY LEVELS....................................................................... PAGE 65

III - WARNINGS FROM WIRE INFORMATION ..................................... PAGE 66

IV - WARNINGS FROM THE VAN FRAMES ......................................... PAGE 67

CHAPTER 3 : INSTRUMENTATION FUNCTION ...................... PAGE 69

I - COOLANT TEMPERATURE GAUGE AND WARNING FUNCTION.. PAGE 69

II - FUEL LEVEL GAUGE FUNCTION ................................................. PAGE 74

III - SPEEDOMETER FUNCTION......................................................... PAGE 77

IV - MILEOMETER FUNCTION............................................................ PAGE 79

V - MAINTENANCE INDICATOR FUNCTION....................................... PAGE 80

VI - CLOCK / DATE / TEMPERATURE FUNCTION............................... PAGE 84

CHAPTER 4 : LIGHTING FUNCTION ....................................... PAGE 87

I - RHEOSTAT FUNCTION................................................................ PAGE 87

II - NIGHT DRIVING FUNCTION......................................................... PAGE 88

CHAPTER 5 : ON-BOARD ECU FUNCTION ............................ PAGE 91

I - GENERAL .................................................................................... PAGE 91

II - LAYOUT....................................................................................... PAGE 92

III - OPERATING MODES ................................................................... PAGE 93

CHAPTER 6 : ELECTRICITY .................................................... PAGE 95

I - LAYOUT DIAGRAM ...................................................................... PAGE 95

II - PARTS LIST ................................................................................. PAGE 98

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

CONTENTS

PART 5

DRIVER'S INFORMATION XSARA

CHAPTER 1 : GENERAL .......................................................... PAGE 103

I - FOREWORD ................................................................................. PAGE 103

II - LAYOUT........................................................................................ PAGE 104

CHAPTER 2 : WARNING FUNCTION ....................................... PAGE 107

I - LIST OF LEDS............................................................................... PAGE 107

II - INTEGRATED BUZZER ................................................................. PAGE 108

III - WARNING APPEARANCE CONDITIONS ....................................... PAGE 108

CHAPTER 3 : INSTRUMENTATION FUNCTION....................... PAGE 111

I - MAINTENANCE INDICATOR.......................................................... PAGE 111

II - OIL LEVEL GAUGE ....................................................................... PAGE 113

III - MILEOMETER ............................................................................... PAGE 114

CHAPTER 4 : REPAIRING THE CONTROL PANEL ................. PAGE 115

I - READING AND ERASING FAULTS ................................................ PAGE 115

II - PROGRAMMING THE MAINTENANCE TYPE................................. PAGE 115

III - ACTUATOR TEST ......................................................................... PAGE 115

IV - READING THE FOLLOWING PARAMETERS ................................. PAGE 116

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

CONTENTS

PART 6

VISIBILITY XSARA AND XSARA PICASSO

CHAPTER 1 : GENERAL.......................................................... PAGE 119

I - FOREWORD ................................................................................ PAGE 119

II - GENERAL LAYOUT...................................................................... PAGE 120

CHAPTER 2 : OPERATING PRINCIPLE................................... PAGE 123

I - WINDSCREEN WIPER FUNCTION ............................................... PAGE 123

II - REAR WIPER FUNCTION............................................................. PAGE 125

III - MANAGEMENT OF WIPER PARKED POSITIONS ......................... PAGE 126

IV - WIPER PROTECTION................................................................... PAGE 126

V - DE-ICING ..................................................................................... PAGE 126

VI - HEADLAMP WASHER TIMER ....................................................... PAGE 127

CHAPTER 3 : ELECTRICITY .................................................... PAGE 129

I - LAYOUT DIAGRAM ...................................................................... PAGE 129

II - PARTS LIST ................................................................................. PAGE 130

PART 7

LOCKING / UNLOCKING XSARA AND XSARA PICASSO

CHAPTER 1 : GENERAL.......................................................... PAGE 135

I - FOREWORD ................................................................................ PAGE 135

II - GENERAL LAYOUT...................................................................... PAGE 138

CHAPTER 2 : OPERATING PRINCIPLE................................... PAGE 141

I - LOCKING / UNLOCKING............................................................... PAGE 141

II - DEADLOCKING............................................................................ PAGE 147

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

CONTENTS

PART 8

AUTOMATIC CLIMATE CONTROL XSARA PICASSO

CHAPTER 1 : GENERAL .......................................................... PAGE 151

I - FOREWORD ................................................................................. PAGE 151

II - GENERAL LAYOUT....................................................................... PAGE 152

III - LAYOUT DIAGRAM ....................................................................... PAGE 155

IV - DESCRIPTION OF THE USER DISPLAY AND CONTROLS............. PAGE 156

CHAPTER 2 : OPERATING PRINCIPLE ................................... PAGE 159

I - COMPRESSOR MANAGEMENT FUNCTION.................................. PAGE 159

II - ADDITIONAL ELECTRIC HEATING FUNCTION.............................. PAGE 164

III - DE-ICING FUNCTION.................................................................... PAGE 164

IV - DOWNGRADED MODES ............................................................... PAGE 165

V - DIAGNOSTICS .............................................................................. PAGE 166

CHAPTER 3 : ELECTRICITY .................................................... PAGE 167

I - LAYOUT DIAGRAM - TU5JP .......................................................... PAGE 167

III - LAYOUT DIAGRAM - EW7 ............................................................. PAGE 168

V - LAYOUT DIAGRAM - DW10 ........................................................... PAGE 169

IV - PARTS LIST.................................................................................. PAGE 170

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

CONTENTS

PART 9

VEHICLE IMMOBILISATION XSARA AND XSARA PICASSO

CHAPTER 1 : TRANSPONDER SYSTEM OPERATING

PRINCIPLE ........................................................ PAGE 175

I - FOREWORD ................................................................................ PAGE 175

II - GENERAL LAYOUT...................................................................... PAGE 176

III - OPERATION................................................................................. PAGE 177

CHAPTER 2 : OPERATING PRINCIPLE OF THE FACTORY

FITTED ANTI-INTRUSION ALARM.................... PAGE 179

I - FOREWORD ................................................................................ PAGE 179

II - GENERAL LAYOUT...................................................................... PAGE 180

III - OPERATION................................................................................. PAGE 181

CHAPTER 3 : OPERATING PRINCIPLE OF THE AFTER-SALES

FITTED ANTI-INTRUSION ALARM.................... PAGE 185

I - FOREWORD ................................................................................ PAGE 185

II - GENERAL LAYOUT...................................................................... PAGE 186

III - OPERATION................................................................................. PAGE 187

CHAPTER 4 : OPERATING PRINCIPLE OF THE SYSTEM

STATUS LED..................................................... PAGE 191

I - FUNCTION................................................................................... PAGE 191

II - FUNCTIONAL DESCRIPTION ....................................................... PAGE 191

CHAPTER 5 : ELECTRICITY .................................................... PAGE 193

I - LAYOUT DIAGRAM ...................................................................... PAGE 193

II - PARTS LIST ................................................................................. PAGE 194

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

CONTENTS

PART 10

RADIO AND COMPACT DISC CHANGER XSARA PICASSO

CHAPTER 1 : GENERAL .......................................................... PAGE 199

I - FOREWORD ................................................................................. PAGE 199

II - GENERAL LAYOUT....................................................................... PAGE 200

CHAPTER 2 : RADIO OPERATING PRINCIPLE....................... PAGE 203

I - SWITCHING ON / OFF................................................................... PAGE 203

II - RADIO ANTI-THEFT FUNCTION.................................................... PAGE 204

III - CONTROLLING THE BRIGHTNESS............................................... PAGE 204

IV - VOLUME AUTOMATICALLY LINKED TO VEHICLE SPEED ............ PAGE 204

V - THERMAL PROTECTION .............................................................. PAGE 205

VI - CONFIGURATION ......................................................................... PAGE 205

CHAPTER 3 : ELECTRICITY .................................................... PAGE 207

I - LAYOUT DIAGRAM ....................................................................... PAGE 207

II - PARTS LIST .................................................................................. PAGE 208

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

PART 1

MULTIPLEXING / BSI

XSARA AND XSARA PICASSO

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

Chapter 1

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

MULTIPLEXING

I - BRIEF DEFINITION

Multiplexing is different from previous electrical technology in that it involves transmitting several items of digital information between various devices on a single transmission channel, in the form of 2 wires.

II - PURPOSE OF MULTIPLEXING

Multiplexing is used to:

• simplify electrical harnesses,

• increase functions (for the same number of wires).

Chapter 1

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

III - DESIGN OF THE XSARA PICASSO AND XSARA MULTIPLEXED NETWORK

XSARA PICASSO design

XSARA design

Key: The dotted lines represent a connection used only by the diagnostic

function.

* Available as an accessory 8410 Radio

BSI Built-in Systems Interface 8415 CD changer

0004 Control panel / Multifunction screen 8500 Navigation

8080 Automatic climate control 8600 Alarm

For the XSARA Picasso, a MultiFunction Screen is incorporated into the control panel:

• MultiFunction Screen type B,

• MultiFunction Screen type C (for navigation option).

There is no MultiFunction Screen on the XSARA.

A communications protocol defines the rules and format of the exchanges between the various ECUs. The communications protocol used on the XSARA and XSARA PICASSO is the VAN.

8080 8410 8415 * 0004

8500

BSI

8600 *

8415

0004

BSI

8410

Chapter 1

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

IV - THE VAN PROTOCOL

The network consists of 2 wires, called:

• Data,

• Data B (Data bar).

The Data B wire is so called because the voltage at its terminals is always opposite to the voltage on Data.

Two current levels are used to encode two distinct logical states.

This process is used to:

• limit the radiation given off,

• provide good resistance to interference.

There is an advantage in using these two wires and electronic circuits for emitting and receiving signals. It allows operation in downgraded mode if one of the wires is broken or short circuited to +12V or to earth.

If a wire breaks, the electronics compares the current level of the signal compared to a reference. The electronics signals the data line faults.

0V t

Data

Data B

Chapter 1

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

Format of the communications message (frame): Only the rate of the Data line is represented as the Data B line is the opposite.

A message in a multiplexed device is unambiguous. It is therefore not possible for an error to occur regarding the recipient nor the nature of the command to be performed.

A frame consists of 9 fields:



a start of message identifier used to locate the start of the message.



an arbitration identification field used to specify the recipient or recipients of the message.



this field specifies whether an acknowledgement request from the receiver

is required, depending on whether it involves a request for or distribution of information.



a field containing the data of the message.



a validity control field for the message in order to check the integrity of the data upon arrival.



a field marking the end of the actual data to indicate that the message is

finished.



an acknowledgement field which allows the receiver to confirm that the message has been correctly received.



an end of frame field.



a frame separator which allows the next frame to use the same sequence of 9 fields.

The electrical signals conveyed by the two wires are square and follow an information encoding sequence. Only the ECUs of the system can interpret them.

IMPORTANT: It is forbidden to connect a measuring device (multimeter, etc) to

the VAN network.

Data and Data B wires can be repaired using Raychem connectors.

     

  

Chapter 1

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

V - LOCATION OF MULTIPLEXED ECUS

XSARA PICASSO

XSARA

* Available as an accessory 8410 Radio

BSI Built-in Systems Interface 8415 CD changer

0004 Control panel / Multifunction screen 8500 Navigation

8080 Automatic climate control 8600 Alarm

0004

8500

BSI

8080

8415 *

8410

8600 *

0004

BSI

8415

8410

Chapter 1

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

Chapter 2

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

BUILT-IN SYSTEMS INTERFACE

The Built-in Systems Interface (BSI) is an ECU which incorporates:

• Interface electronics (relays, fuses, diagnostic socket, HF receiver)

• Control electronics: The BSI is one of the masters of the VAN network, on which it

controls communications between the ECUs

• Calculation electronics: this controls the basic functions in an autonomous manner

(locking of the doors, signalling, visibility, interior lighting, engine immobiliser, etc).

• Information about the vehicle for the anti-theft protection (vehicle's VIN code, key

codes, HF remote control code, radio identification, etc)

• A program which is used to control the system and perform diagnostics and

configuration procedures.

The BSI acts as a gateway between the VAN network and the diagnostic tool.

In addition, it helps with energy management by controlling reduced consumption modes for itself and the other multiplexed ECUs.

Chapter 2

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

I - FUNCTIONS CONTROLLED BY THE BSI ON THE XSARA PICASSO AND THE

XSARA

FUNCTION DETAILS

XSARA

PICASSO

XSARA

Signalling Indicator control

X X

Hazard warning lamps button acquisition

X X

Blown bulb detection

X X

Illumination of indicators in the event of an impact

Signalling of the locked status of the vehicle

X X

Locking Locking / unlocking using the plip

X X

Locking / unlocking using the interior button

Unlocking in the event of an impact

Rebound function

X X

Boot opening button

Locking motor protection

X X

Automatic re-locking after 30 seconds of no action

X X

Deadlocking

Unlocking whilst driving a deadlocked vehicle

Signalling of the locking status by a system status LED

Vehicle immobilisation Encrypted code transponder function

X X

BSI - engine management ECU wire connection

X X

Signalling of engine ECU locked by system status LED

Non multiplexed alarm

Self-powered multiplexed alarm

X X

Interior lighting Timed interior lamps upon opening doors

X X

Progressive extinguishing, progressive illumination

X X

Illumination upon removing the key

X X

Windows Timed supply to electric windows and sunroof

Visibility Control of normal commands (windscreen washer, etc)

X X

Intermittent wiper function when stationary

Reduction in wiper speed when stationary

Rear wiper linked to reverse gear and to windscreen

wiper mode

Automatic windscreen and rear wipers with rain sensor

Control of wiper parked position

X X

Protection of windscreen and rear wiper motors

X X

Timed de-icing of rear screen and door mirrors

X X

Timed headlamp washers

Timed extinguishing of headlamps

* Suppressed but may be reinstated

Chapter 2

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

FUNCTION DETAILS

XSARA

PICASSO

XSARA

Driver's information Programmable maintenance indicator (through

connection on BSI)

X X

Acquisition of external temperature

Time base

Signalling of door status

X X

Sidelamps on and key in ignition reminder

X X

Automatic gearbox safety warning

Overspeed warning

X *

HF remote control battery worn warning

X X

Transponder fault warning

X X

Driving school pedal set warning

Battery charge, alternator excitation fault warning

X X

Acquisition by BSI and transmission of speed

information to the control panel

X X

Memorising of mileage in the control panel and BSI

X X

Memorising of the VIN code and Diagnostic code

X X

On-board ECU

Air conditioning Automatic climate control (RFTA)

Air conditioning

X X

RTFA = Refrigeration - Totally Automatic

II - BSI LAYOUTS ON THE XSARA PICASSO AND XSARA

XSARA PICASSO

8410

8080

8500

8415 *

BSI 0004

6 2

8600 *

Chapter 2

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

XSARA

Key: single arrow = wire connection

triple arrow = multiplexed connection.

* Available as an accessory 8410 Radio

BSI Built-in Systems Interface 8415 CD changer

0004 Control panel / Multifunction screen 8500 Navigation

8080 Automatic climate control 8600 Alarm

Note: The connection numbers are used to associate these diagrams to the

input-output tables for the XSARA Picasso (XsP) and the XSARA (Xs).

BSI 0004

12 13 16 15

Chapter 2

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

III - BSI INPUTS

A - SUPPLIES

DESCRIPTION EMITTER TYPE XSP XS

+ accessories information

Supply to + accessories track for windscreen /

rear wash / wipe steering wheel stalk

Ignition switch - accessories - ignition position All or Nothing

Supply

1 12

+ALT permanent power supply Alternator Supply 1 12

- +ignition on information

- Electronic redundant supply

Ignition switch - ignition - cranking positions Supply

All or Nothing

1 12

+BAT permanent electronic supply, cut off

when parked by removing the shunt from the

Passenger Compartment Fuse Box

Battery Supply 1 12

+BAT permanent power supply Battery Supply 1 12

+BAT permanent power supply for

smartpowers

Battery Supply 1 12

- Headlamp information

- Electrical redundant supply, track for number plate, lighting of buttons

Lighting / headlamp signalling stee

ring wheel

stalk

Supply

All or Nothing

1 12

Analogue earth for sensors on passenger

compartment harness

Earth 1 12

Analogue earth for sensors on main harness Earth 1 12 ECU earth Earth 1 12 Power earth Earth 1 12

B - WIRE INPUTS

DESCRIPTION ORIGIN TYPE XSP XS

Battery charge / alternator excitation (InputOutput)

Alternator Analogue 1 12

Air conditioning compressor engaging

authorisation

Engine management ECU All or Nothing 1 12

Rear wiper motor parked position information Rear wiper motor All or Nothing 1 12 Windscreen wiper motor parked position information

Windscreen wiper motor All or Nothing 1 12

Engine coolant temperature warning information Coolant Temperature Management Unit

FRIC Engine management ECU Thermoswitch

All or Nothing 1 12

Impact detection information Inertia switch All or Nothing 1 12 Right hand indicators request Lighting / signalling steering wheel stalk All or Nothing 1 no Left hand indicators request Steering wheel stalk All or Nothing 1 12 Boot or tailgate not closed switch Boot switch All or Nothing 1 no Central locking request button Locking information (on dashboard) All or Nothing 1 12 Driver's door internal opening contact Driver's door lock All or Nothing 1 12 Front passenger's door internal opening contact Passenger's door lock All or Nothing 1 12 Rear right hand passenger's door open switch Rear right hand door open switch All or Nothing 1 12 Rear left hand passenger's door open switch Rear left hand door open switch All or Nothing 1 12 Driver's door open switch Front left hand door open switch All or Nothing 1 12 Front passenger's door open switch Front right hand door open switch All or Nothing 1 12 Bonnet not closed switch Bonnet switch All or Nothing no 12 Fuel flow information Engine ECU Frequency 1 12 Engine ECU fault information Engine ECU All or Nothing 1 12 On-board ECU scroll request Steering wheel stalk 1 12 Heated rear screen a nd door mirrors de-

icing

request (except RFTA climate control)

De-icing button All or Nothing 1 12

Chapter 2

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

DESCRIPTION ORIGIN TYPE XSP XS

Hazard warning lamps request Hazard warning lamps button All or Nothing 1 12 Rear wiper request Wipers steering wheel stalk All or Nothing 1 12 Windscreen wipers high speed request Wipers steering wheel stalk All or Nothing 1 12 Windscreen wipers intermittent request Wipers steering wheel stalk All or Nothing 1 12 Rear screen wash request Wipers steering wheel stalk All or Nothing 1 12 Windscreen wash request Wipers steering wheel stalk All or Nothing 1 12 Boot open request Boot opening button All or Nothing 1 12 Diesel pre-heating information Engine ECU All or Nothing 1 12 Air con refrigerant safety information Pressure switch All or Nothing 1 12 Windscreen wipers slow speed request Wipers steering wheel stalk All or Nothing 1 12

- Reverse gear information

- Supply to REVERSE track for reversing lamps

Reverse gear contact All or Nothing 1 12

Engine speed information Engine ECU Frequency 1 12 Air conditioning request (for air con) Air conditioning panel All or Nothing 1 12 Locking/unlocking request through lock Front lock contacts All or Nothing 1 12 External air temperature information External air temperature sensor Analogue 1 12

Engine coolant temperature information (not

PSA2000 engine ECU and without FRIC)

Engine coolant temperature sensor Analogue 1 12

Engine coolant temperature information

(PSA2000 engine ECU and with FRIC)

Engine ECU Frequency 1 12

Air conditioning evaporator temperature information

Evaporator temperature sensor Analogue 1 12

Vehicle speed information Speed sensor Frequency 1 12 Diagnostic serial connector (Input/Output) Diagnostic tool 1 12

C - MULTIPLEXED INPUTS

DESCRIPTION ORIGIN XSARA

PIC.

XSARA

Multifunction Screen requests

Request to reset journey counters Multifunction screen 5 no Request to reset tripometers Multifunction screen C 5 no Request to maintain +VAN comfort Multifunction screen 5 no

Control panel status

Oil pressure warning Control panel 5 15 Night driving mode Control panel 5 no Parking brake Control panel 5 15 Control panel brightness level Control panel 5 15 Low fuel information Control panel 5 15 ABS fault Control panel 5 15 Electronic brakeforce distribution fault Control panel 5 15 Brake fluid fault Control panel 5 15 Automatic gearbox fault Control panel no 15 Gross fuel level Control panel 5 15 Dipped beam Control panel 5 15

Control panel reading

Stored mileage Control panel 5 15

Air conditioning requests

Air conditioning request Automatic climate control 6 no Heated rear screen and door mirrors de-ic

ing

request

Automatic climate control 6 no

Chapter 2

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

IV - BSI OUTPUTS

A - WIRE OUTPUTS

DESCRIPTION RECEIVER TYPE XSP XS

+ accessories supply for windscreen/rear wash/

wipe steering wheel stalk

Steering wheel stalk All or

Nothing

2 13

Air conditioning compressor authorisation Engine ECU All or

Nothing

2 13

Rear right hand indicator control Rear right hand indicator All or

Nothing

2 13

Rear left hand indicator control Rear left hand indicator All or

Nothing

2 13

Front right hand indicator control Front right hand indicator All or

Nothing

2 13

Front left hand indicator control Front left hand indicator All or

Nothing

2 13

Right hand repeater indicator control Right hand repeater indicator All or

Nothing

2 13

Left hand repeater indicator control Left hand repeater indicator All or

Nothing

2 13

Transponder clock signal Transponder Frequency 2 13 Air conditioning compressor clutch control Air conditioning compressor clutch relay All or

Nothing

2 13

Locking actuator control Door locks All or

Nothing

2 13

Unlocking actuator control Door locks All or

Nothing

2 13

Rear wiper motor control Rear wiper motor All or

Nothing

2 13

Windscreen wiper motor high speed control Windscreen wiper motor All or

Nothing

2 13

Supply: number plate, button lighting, etc Items illuminated at night All or

Nothing

2 13

Heated rear screen control Heated rear screen All or

Nothing

2 13

Supply: front electric window motors, sunroof,

rear electric window relay control

Electric window motors, rear electric window relays All or

Nothing

2 13

Low fuel information Engine ECU All or

Nothing

2 13

Engine running information Engine running relay All or

Nothing

2 13

Boot opening actuator control Boot opening lock All or

Nothing

2 13

Rear interior lamp control Rear interior lamp switch All or

Nothing

2 13

Front interior lamp control Front interior lamp switch All or

Nothing

2 13

Windscreen wiper motor slow speed control Windscreen wiper motor All or

Nothing

2 13

Reversing lamps supply Reversing lamps All or

Nothing

2 13

Sidelamps relay control Sidelamps relay All or

Nothing

2 no

Heated door mirrors control Door mirrors relay All or

Nothing

2 13

Engine ECU resupply command for engine

immobiliser

Engine ECU double relay All or

Nothing

2 13

Heated rear screen and door mirror lamp control

(except RFTA climate control)

De-icing switch All or

Nothing

10 no

Hazard warning lamps button lamp control Hazard warning lamps button lamp All or

Nothing

2 13

System status LED control System status LED All or

Nothing

2 no

Supply: VAN bus power on passenger compartment harness

VAN network All or

Nothing

2 13

Supply: VAN bus power on main harness VAN network All or

Nothing

2 13

Chapter 2

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

B - MULTIPLEXED OUTPUTS

DESCRIPTION RECEIVER XSARA

PIC.

XSARA

Fast BSI data

Engine speed Control panel/MFS 8 16 Instantaneous vehicle speed Control panel/MFS, Air conditioning, Radio CD 8, 9, 10 16 Mileage Control panel/MFS 8 16 Fuel consumption Control panel/MFS 8 16

Slow BSI data

Day / Night status Control panel/MFS, Air conditioning, Radio 8, 9, 10, 11

no Night driving mode Control panel/MFS, Air conditioning 8, 10 no Control panel brightness level Control panel/MFS, Air conditioning 8, 10 no (Alarm on stand-by)

Alarm (accessory) 0 no

Factory / Customer mode MFS, Radio, CD changer 8, 9, 11 16 Reverse gear Navigation 7 no Economy mode Control panel/MFS, Air conditioning, Radio CD 8, 9, 10 16 Set to stand-by in 5 seconds Control panel/MFS, Air conditioning, Radio,

CD changer

8, 9, 10, 11

Engine running Control panel/MFS, Air conditioning 8, 10 16 Position of ignition key Control panel/MFS, Air conditioning 8, 10 16 Coolant temperature Control panel/MFS 8 16 Vehicle mileometer Control panel/MFS 8 16 External temperature Control panel/MFS, Air conditioning 8, 10 no

BSI configuration

VIN Radio 9 no

BSI display

Coolant temperature warning Control panel/MFS 8 16 Brake fluid / hydraulic level warning Control panel/MFS 8 16 Door(s) open, engine running warning Control panel/MFS 8 16 Oil pressure warning Control panel/MFS 8 no Electronic brakeforce distribution fault Control panel/MFS 8 no ABS fault Control panel/MFS 8 16 EOBD fault Control panel/MFS 8 16 Battery charging fault Control panel/MFS 8 16 Headlamps left on reminder signal Control panel/MFS 8 16 Key in ignition reminder signal Control panel/MFS 8 16 Overspeed signal Control panel/MFS 8 16 Parking brake Control panel 8 16 HF plip battery worn MFS 8 no Impact sensor signal MFS 8 no Electric engine immobiliser system fault Control panel/MFS 8 16 Vehicle locking status Control panel/MFS 8 no

Chapter 2

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

DESCRIPTION RECEIVER XSARA

PIC.

XSARA

BSI CPL displays

Front right hand door open MFS 8 no Front left hand door open MFS 8 no Rear right hand door open MFS 8 no Rear left hand door open MFS 8 no Boot open MFS 8 no Consumption invalid (flowmeter fault) MFS 8 no Range invalid (sender fault) MFS 8 no Range calculation impossible (fuel level too low) MFS 8 no

Distance travelled insufficient (less than 400 m

since resetting)

MFS 8 no

Journey distance insufficient (less that 400 m

since resetting)

MFS C 8 no

Status of on board ECU scroll button MFS 8 no Average speed travelled MFS 8 no Average journey speed MFS 8 no Filtered speed MFS 8 no Cumulative distance travelled MFS 8 no Average consumption MFS 8 no Cumulative journey distance MFS C 8 no Average journey consumption MFS C 8 no Instant consumption MFS 8 no Remaining range MFS 8 no

BSI event

Main event present MFS 8 no Secondary event present MFS 8 no Source of the event MFS 8 no Change of signals and modes MFS 8 no Change of door status MFS 8 no Change of on board ECU data MFS 8 no

Control panel functions

Activation of control panel Control panel 8 16 Pre-heating Control panel 8 16 Hazard warning lamps Control panel 8 16 Right hand indicator Control panel 8 16 Left hand indicator Control panel 8 16

Air conditioning information

Air conditioning activation Automatic climate control 10 no Compressor authorisation Automatic climate control 10 no Heated rear screen operating status Automatic climate control 10 no Compressor status Automatic climate control 10 no Coolant pressure/temperature, evaporator safety Automatic climate control 10 no Evaporator temperature Automatic climate control 10 no

Chapter 2

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

V - LOCATION AND TYPE OF THE CONNECTORS ON THE BSI

CONNECTOR DESCRIPTION CHANNELS COLOUR

P Power Supply Connector to main harness 2 GREY

PP Power Connector to main harness 16 GREEN PH Power Connector to passenger compartment harness 16 BLACK

EP1 Electronic Connector to main harness 26 YELLOW EP2 Electronic Connector to main harness 12 BROWN

EH1 Electronic Connector to passenger compartment harness 26 BLUE EH2 Electronic Connector to passenger compartment harness 12 BLUE

EH1

EP1

EH2

EP2

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