CITROEN XSARA Training manual

Name: CITROEN XSARA
Brand: CITROEN
SKU: 1971902
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CITROËN TECHNICALTRAINING

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

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

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).

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

Chapter 1

III - DESIGN OF THE XSARA PICASSO AND XSARA MULTIPLEXED NETWORK

XSARA PICASSO design

BSI

8080 8410 8415 * 0004 8500 8600 *

XSARA design

		BSI		8410

0004 8415

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.

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

Chapter 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.

Data	0V
	0V	t
		t

Data B

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.

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

Chapter 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.

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

Chapter 1

V - LOCATION OF MULTIPLEXED ECUS

XSARA PICASSO

8415 *

8410 8080

0004 8600 *

8500

BSI

XSARA

8415

8410

0004

BSI

*	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

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

Chapter 1

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

Chapter 2

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.

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

Chapter 2

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

FUNCTION	DETAILS	XSARA	XSARA
FUNCTION	DETAILS	PICASSO	XSARA
		PICASSO
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	X*
	Signalling of the locked status of the vehicle	X	X
Locking	Locking / unlocking using the plip	X	X
	Locking / unlocking using the interior button	X
	Unlocking in the event of an impact	X*
	Rebound function	X	X
	Boot opening button	X
	Locking motor protection	X	X
	Automatic re-locking after 30 seconds of no action	X	X
	Deadlocking		X
	Unlocking whilst driving a deadlocked vehicle		X
	Signalling of the locking status by a system status LED	X
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	X
	Non multiplexed alarm		X
	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	X
Visibility	Control of normal commands (windscreen washer, etc)	X	X
	Intermittent wiper function when stationary	X
	Reduction in wiper speed when stationary	X
	Rear wiper linked to reverse gear and to windscreen	X
	wiper mode
	Automatic windscreen and rear wipers with rain sensor		X
	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		X
	Timed extinguishing of headlamps	X

* Suppressed but may be reinstated

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

Chapter 2

FUNCTION	DETAILS	XSARA	XSARA
FUNCTION	DETAILS	PICASSO	XSARA
		PICASSO
Driver's information	Programmable maintenance indicator (through	X	X
	connection on BSI)
	Acquisition of external temperature	X
	Time base		X
	Signalling of door status	X	X
	Sidelamps on and key in ignition reminder	X	X
	Automatic gearbox safety warning		X
	Overspeed warning	X	*
	HF remote control battery worn warning	X	X
	Transponder fault warning	X	X
	Driving school pedal set warning		X
	Battery charge, alternator excitation fault warning	X	X
	Acquisition by BSI and transmission of speed	X	X
	information to the control panel
	Memorising of mileage in the control panel and BSI	X	X
	Memorising of the VIN code and Diagnostic code	X	X
	On-board ECU	X
Air conditioning	Automatic climate control (RFTA)	X
	Air conditioning	X	X

RTFA = Refrigeration - Totally Automatic

II- BSI LAYOUTS ON THE XSARA PICASSO AND XSARA XSARA PICASSO


8500			0004		8410

	8	5	9
	8
	7
	7
8415 *	11
	0		6
	0		10
		BSI	10
		BSI	8080
8600 *	1		2
8600 *	1

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

Chapter 2

XSARA


		0004
	16	15
	12		13
	12		13

		BSI
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).

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

Chapter 2

III- BSI INPUTS

A - SUPPLIES

	DESCRIPTION			EMITTER	TYPE	XSP	XS

+ accessories information				Ignition switch - accessories - ignition position	All or Nothing	1	12
Supply to + accessories track for windscreen /					Supply
rear wash / wipe steering wheel stalk
+ALT permanent power supply				Alternator	Supply	1	12
- +ignition on information				Ignition switch - ignition - cranking positions	Supply	1	12
- Electronic redundant supply					All or Nothing
+BAT permanent electronic supply, cut off				Battery	Supply	1	12
when parked by removing the shunt from the
Passenger Compartment Fuse Box
+BAT permanent power supply				Battery	Supply	1	12
+BAT	permanent	power	supply for	Battery	Supply	1	12
smartpowers
- Headlamp information				Lighting / headlamp signalling steering wheel	Supply	1	12
- Electrical redundant supply, track for number				stalk	All or Nothing
plate, lighting of buttons
Analogue earth for sensors on passenger					Earth	1	12
compartment harness
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 (Input-				Alternator	Analogue	1	12
Output)
Air	conditioning	compressor	engaging	Engine management ECU	All or Nothing	1	12
authorisation
Rear wiper motor parked position information				Rear wiper motor	All or Nothing	1	12
Windscreen wiper motor parked position				Windscreen wiper motor	All or Nothing	1	12
information
Engine coolant temperature warning information				Coolant Temperature Management Unit	All or Nothing	1	12
				FRIC Engine management ECU
				Thermoswitch
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 and door mirrors			de-icing	De-icing button	All or Nothing	1	12
request (except RFTA climate control)

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

Chapter 2

DESCRIPTION

ORIGIN

TYPE

XSP

Hazard warning lamps request

Hazard warning lamps button

All or Nothing

Rear wiper request

Wipers steering wheel stalk

All or Nothing

Windscreen wipers high speed request

Wipers steering wheel stalk

All or Nothing

Windscreen wipers intermittent request

Wipers steering wheel stalk

All or Nothing

Rear screen wash request

Wipers steering wheel stalk

All or Nothing

Windscreen wash request

Wipers steering wheel stalk

All or Nothing

Boot open request

Boot opening button

All or Nothing

Diesel pre-heating information

Engine ECU

All or Nothing

Air con refrigerant safety information

Pressure switch

All or Nothing

Windscreen wipers slow speed request

Wipers steering wheel stalk

All or Nothing

- Reverse gear information

Reverse gear contact

All or Nothing

- Supply to REVERSE track for reversing lamps

Engine speed information

Engine ECU

Frequency

Air conditioning request (for air con)

Air conditioning panel

All or Nothing

Locking/unlocking request through lock

Front lock contacts

All or Nothing

External air temperature information

External air temperature sensor

Analogue

Engine

coolant temperature information

(not

Engine coolant temperature sensor

Analogue

PSA2000 engine ECU and without FRIC)

Engine

coolant

temperature information

Engine ECU

Frequency

(PSA2000 engine ECU and with FRIC)

Air conditioning evaporator temperature

Evaporator temperature sensor

Analogue

information

Vehicle speed information

Speed sensor

Frequency

Diagnostic serial connector (Input/Output)

Diagnostic tool

C - MULTIPLEXED INPUTS

DESCRIPTION

ORIGIN

XSARA

PIC.

Multifunction Screen requests

Request to reset journey counters

Multifunction screen

Request to reset tripometers

Multifunction screen C

Request to maintain +VAN comfort

Multifunction screen

Control panel status

Oil pressure warning

Control panel

Night driving mode

Control panel

Parking brake

Control panel

Control panel brightness level

Control panel

Low fuel information

Control panel

ABS fault

Control panel

Electronic brakeforce distribution fault

Control panel

Brake fluid fault

Control panel

Automatic gearbox fault

Control panel

Gross fuel level

Control panel

Dipped beam

Control panel

Control panel reading

Stored mileage

Control panel

Air conditioning requests

Air conditioning request

Automatic climate control

Heated

rear screen

and door mirrors de-icing

Automatic climate control

request

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

Chapter 2

IV - BSI OUTPUTS

A - WIRE OUTPUTS

DESCRIPTION		RECEIVER	TYPE	XSP	XS
+ accessories supply for windscreen/rear wash/		Steering wheel stalk	All or	2	13
wipe steering wheel stalk			Nothing
Air conditioning compressor authorisation		Engine ECU	All or	2	13
			Nothing
Rear right hand indicator control		Rear right hand indicator	All or	2	13
			Nothing
Rear left hand indicator control		Rear left hand indicator	All or	2	13
			Nothing
Front right hand indicator control		Front right hand indicator	All or	2	13
			Nothing
Front left hand indicator control		Front left hand indicator	All or	2	13
			Nothing
Right hand repeater indicator control		Right hand repeater indicator	All or	2	13
			Nothing
Left hand repeater indicator control		Left hand repeater indicator	All or	2	13
			Nothing
Transponder clock signal		Transponder	Frequency	2	13
Air conditioning compressor clutch control		Air conditioning compressor clutch relay	All or	2	13
			Nothing
Locking actuator control		Door locks	All or	2	13
			Nothing
Unlocking actuator control		Door locks	All or	2	13
			Nothing
Rear wiper motor control		Rear wiper motor	All or	2	13
			Nothing
Windscreen wiper motor high speed control		Windscreen wiper motor	All or	2	13
			Nothing
Supply: number plate, button lighting, etc		Items illuminated at night	All or	2	13
			Nothing
Heated rear screen control		Heated rear screen	All or	2	13
			Nothing
Supply: front electric window motors,	sunroof,	Electric window motors, rear electric window relays	All or	2	13
rear electric window relay control			Nothing
Low fuel information		Engine ECU	All or	2	13
			Nothing
Engine running information		Engine running relay	All or	2	13
			Nothing
Boot opening actuator control		Boot opening lock	All or	2	13
			Nothing
Rear interior lamp control		Rear interior lamp switch	All or	2	13
			Nothing
Front interior lamp control		Front interior lamp switch	All or	2	13
			Nothing
Windscreen wiper motor slow speed control		Windscreen wiper motor	All or	2	13
			Nothing
Reversing lamps supply		Reversing lamps	All or	2	13
			Nothing
Sidelamps relay control		Sidelamps relay	All or	2	no
			Nothing
Heated door mirrors control		Door mirrors relay	All or	2	13
			Nothing
Engine ECU resupply command for	engine	Engine ECU double relay	All or	2	13
immobiliser			Nothing
Heated rear screen and door mirror lamp control		De-icing switch	All or	10	no
(except RFTA climate control)			Nothing
Hazard warning lamps button lamp control		Hazard warning lamps button lamp	All or	2	13
			Nothing
System status LED control		System status LED	All or	2	no
			Nothing
Supply: VAN bus power on passenger		VAN network	All or	2	13
compartment harness			Nothing
Supply: VAN bus power on main harness		VAN network	All or	2	13
			Nothing

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

Chapter 2

B - MULTIPLEXED OUTPUTS

DESCRIPTION	RECEIVER	XSARA	XSARA
		PIC.

	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,	8, 9, 10, 11	16
	CD changer
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

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

Chapter 2

DESCRIPTION	RECEIVER	XSARA	XSARA
		PIC.

	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	MFS	8	no
since resetting)
Journey distance insufficient (less that 400 m	MFS C	8	no
since resetting)
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

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

Chapter 2

V - LOCATION AND TYPE OF THE CONNECTORS ON THE BSI

EP1	EH2

EP2

			EH1
		P


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

MULTIPLEXED BSI - XSARA PICASSO AND XSARA – PART 1

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