User manual CITROEN XSARA TECHNICAL TRAINING

[. . . ] 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 A 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. - Radio system. MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 1 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon B CONTENTS PARTS 1 MULTIPLEXING / BSI XSARA AND XSARA PICASSO CHAPTER 1 : MULTIPLEXING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . III III IV VBRIEF DEFINITION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Every time button "v" is pressed, the parameter to be adjusted is incremented. Note: For the YEAR parameter, switching from 1900 to 2000 will occur automatically for all parameter values less than 99. Spanish, Portuguese, Italian, German, Parameters MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 86 Chapter 3 MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 87 Chapter 4 LIGHTING FUNCTION I- RHEOSTAT FUNCTION A - GENERAL The + and - rheostat buttons are used to vary the brightness level of the lighting of the displays, except that of the warning LEDs. B - LAYOUT a 1 0004 1 1 BSI 8410 8080 Key: single arrow = wire connection triple arrow = multiplexed connection COMPONENTS BSI 0004 8080 8410 a Built-in systems interface Control panel (LEDs + microprocessor) Air conditioning compressor Radio "Night driving" push button Signal type: 1 - VAN frames containing the brightness status of the LEDs MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 88 Chapter 4 C - OPERATING MODES 1 - Principle The control panel encodes the brightness level in a VAN frame to be sent to the BSI. The BSI transmits the information to the air conditioning and radio ECUs (RD2 only). 2 - downgraded mode If one of the buttons is jammed, an intermediate brightness level is used by default. II NIGHT DRIVING FUNCTION A - GENERAL This function is used to extinguish all the LEDs on the control panel as well as the air conditioning display which generate light which may be tiring at night. Only the vehicle speed remains illuminated. Warnings automatically cause the corresponding LED to illuminate. B - LAYOUT Refer to the rheostat function layout. C - OPERATING MODES · PRINCIPLE The control panel encodes the status of the night driving function in a VAN frame to be sent to the BSI. The BSI transmits the information to all the ECUs involved. · ACTIVATION This function is activated using button "a". MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 89 Chapter 4 · DEACTIVATION If an event occurs, this causes the zone in question to be re-illuminated in accordance with the table below: EVENT Brief press on one of the 4 buttons (user request) Engine overheating Fuel level < 15 litres Warning DISPLAY DURATION All information on the Until button "a" is pressed control panel and again multifunction screen Coolant temperature event duration gauge Fuel level gauge Screen message without displaying the time, temperature, etc Screen display Screen display Until the ignition is switched off or fuel added Until the ignition is switched off or end of message timer (see message function) Timed for 6 seconds after last user action Timed for 6 seconds after last user action Action on radio Action on on-board ECU MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 90 Chapter 4 MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 91 Chapter 5 ON-BOARD ECU FUNCTION I- GENERAL A - ROLE The on-board ECU controls the display of the following information: · · · · · · Instantaneous consumption, Average consumption, Range, Average speed, Total distance travelled, Overspeed warning. B - DISPLAY Pressing the on-board ECU button briefly (located on the end of the stalk on the steering wheel) is used to switch to the next display. The display is in digital form combined with a combination of icons on the multifunction screen to specify the type of information displayed. ICONS DESCRIPTION a vehicle coming from a round sign showing the last time the parameters were reset for the journey parameters (average speed, average consumption) a vehicle going towards a petrol pump for the range a vehicle on its own for the instantaneous consumption MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 92 Chapter 5 II - LAYOUT 1 1620 2 1320 3 7205 BSI 6 5 4 4315 0004 Key: single arrow = wire connection triple arrow = multiplexed connection COMPONENTS BSI 0004 1320 1620 4315 7205 Built-in systems interface Control panel (LEDs + microprocessor) Engine management ECU Speed sensor Fuel sender On-board ECU scroll switch Signal type: 1 - variable frequency signal proportional to the speed of the front wheels 2 - variable frequency signal depending on fuel flow 3 - all or nothing signal 4 - current depending on gross fuel level 5 - VAN frames containing information from the on-board ECU for display 6 - VAN frame containing the fuel level. MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 93 Chapter 5 III - OPERATING MODES Nominal operation: The BSI calculates the "range" with the fuel consumption and the amount of fuel remaining supplied by the control panel. After acquiring the signal from the speed sensor, the BSI calculates the following parameters: · "journey distance" since last reset, · "average journey consumption" since last reset, · "instantaneous consumption" with fuel flow information supplied by the engine management ECU, · "average journey speed" since last reset, · the BSI encodes this information in VAN frames to be sent to the control panel. Reset: Pressing the on-board ECU switch for a long time on the steering wheel stalk resets the journey counters. The BSI encodes this status on a VAN frame to be sent to the multifunction screen of the control panel. MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 94 Chapter 5 MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 95 Chapter 6 ELECTRICITY ILAYOUT DIAGRAM A - COOLANT TEMPERATURE WARNING AND GAUGE - TU5JP PFM004P MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 96 Chapter 6 B - COOLANT TEMPERATURE WARNING AND GAUGE - DW10 PFM005P MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 97 Chapter 6 C - PETROL LEVEL GAUGE - EW7 PFM006P MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 98 Chapter 6 II - PARTS LIST BB00 BB12 BH12 BH28 BSI1 C001 CA00 CT00 0002 0004 0005 1010 1020 1203 1211 1220 1313 1320 1620 2300 2340 2345 2610 2615 2630 2635 3010 3020 3050 3054 3105 - Battery - + battery connection terminal - 12 fuse box (passenger compartment) - 28 fuse box (passenger compartment) - Built-in systems interface - Diagnostic connector - Ignition switch - Rotary connector - Signalling/lighting stalk - Control panel - Wiper stalk - Starter motor - Alternator - Inertia switch - Fuel sender pump - Engine coolant temperature sensor - Engine speed sensor - Engine management ECU - Vehicle speed sensor - Danger signal switch - Left hand side repeater - Right hand side repeater - Left hand headlamp - Right hand headlamp - Rear left hand lamp on body - Rear right hand lamp on body - Front interior lamp - Rear interior lamp - Lighting rheostat - Ashtray lighting - Boot (or tailgate) lighting BM34 - 34 fuse engine relay unit MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 99 Chapter 6 3110 3115 4010 4025 5015 5115 6202 6207 6260 8006 8007 8008 8010 8020 8025 8030 8031 8045 8050 8065 8070 8071 8220 8410 8413 8415 8420 8425 8430 8435 8440 8445 8500 - Glove box lighting switch - Glove box lighting - Engine coolant level switch - Temperature sensor - engine coolant thermoswitch (gauge) - Windscreen wiper motor - Windscreen/rear screen washer pump - Front door lock assembly driver's side - Front door lock assembly passenger's side - Boot locking motor - Evaporator thermistor (if separate) - Pressure switch - Air conditioning engine coolant temperature thermistor - Coolant temperature unit - Air conditioning compressor - Air conditioning control panel (if separate) - Passenger compartment air thermistor - Coolant thermistor - Blower control module (if separate) - Blower motor (if separate) - Mixing flap reduction motor - Air input flap reduction motor - Distribution flap reduction motor - Analogue module transponder - Radio - Radio control - Compact disc changer - Loud speakers on front door (driver's side) - Loud speakers on front door (passenger's side) - Loud speaker (rear left hand) - Loud speaker (rear right hand) - Front left hand tweeter speaker - Front right hand tweeter speaker - Navigation ECU MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 100 Chapter 6 MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 4 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 101 PART 5 DRIVER'S INFORMATION XSARA MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 5 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 102 MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 5 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 103 Chapter 1 GENERAL I- FOREWORD The control panel is normal in appearance but several of its functions are multiplexed (mileometer, etc). Refer to the tables corresponding to the layout. MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 5 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 104 Chapter 1 II - LAYOUT The control panel receives information along the wires and by communicating with the ECUs via the VAN network. BSI 2 3 A Key: 1 0004 single arrow = wire connection triple arrow = multiplexed connection COMPONENTS BSI Built-in systems interface 0004 Control panel (LEDs + microprocessor) A Pressure switch Oil level sensor Controls at the steering wheel Central airbag ECUs Side airbag ECUs Presence of water sensor Brake pad sensor Seatbelt contact Oil temperature sensor Oil level sensor Fuel sender Brake fluid sender Parking brake contact ABS valve block Automatic gearbox ECU MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 5 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 105 Chapter 1 CONNECTIONS N° 1 Low oil pressure Low coolant level Sidelamps status Dipped beam status Front airbag fault Side airbag fault Front and rear fog lamps control Water in diesel* Brake pad wear / Stop lamps Presence of driver's seatbelt LPG level Brake fluid hydraulic level Oil level Parking brake status ABS fault Electronic brakeforce distribution fault Auto gearbox selector position information 2 Low fuel Filtered fuel level Gross fuel level ABS fault Auto gearbox fault Brake fluid fault Oil temperature Parking brake Dipped beam Saved journey distance Low oil pressure Electronic brakeforce distributor fault Control panel brightness level Signal Type All or nothing All or nothing All or nothing All or nothing All or nothing All or nothing All or nothing All or nothing All or nothing (2 inputs) All or nothing analogue All or nothing Analogue All or nothing LED active All or nothing Square VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 5 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 106 Chapter 1 CONNECTIONS N° 3 Signal Engine speed information Vehicle speed information Distance information Coolant temperature information Factory/customer mode Ignition key position Economy mode Engine running Coolant temperature warning Door open, engine running EOBD/Engine management fault Battery charge fault Electronic engine immobiliser system fault Illumination of indicator LEDs Lamps on reminder warning Key in ignition reminder warning Overspeed warning Day/night status Brightness level Set to stand-by in 5 seconds Activation of control panel Pre-heating information Auto gearbox safety warning Total mileage Heated rear screen activated Type VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN VAN * depending on equipment MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 5 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 107 Chapter 2 WARNING FUNCTION ILIST OF LEDS V6/V26 V7 V8 V5 V4 V3 V2 V1 LED V1 V2 V3 V4 V5 V6 V7 V8 V9 V10 V11 V12 V13 V14 V15 V16 V17 V18 V19 V20 V21 V22 V23 V24 V25 V26 V27 V9 V18 V19 V20 V21 V22 V17 V12 V16 V15 V14 V13 V11 V27 V24 FUNCTION V10 Rear fog lamp Front fog lamp Brake pad wear indicator* Coolant temperature warning Engine management diagnostic Coolant level Seatbelt Diesel pre-heating Transponder fault Dipped beam Main beam Water in diesel Low fuel warning ABS Side airbag Front airbag Rear screen Brake fault Battery charge Stop Oil pressure Parking brake Left hand indicator Doors open Right hand indicator LPG operation Auto gearbox position display * depending on equipment Note 1: All possible LEDs are represented on the control panel above but this model of control panel does not actually exist. If a bulb blows, replace the control panel. MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 5 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 108 Chapter 2 II - INTEGRATED BUZZER The buzzer integrated into the control panel produces 4 types of sound: · "Relay clicking" type sound N1, · "Intermittent" type sound N2, · "Continuous" type sound N3, · "Intermittent sound at twice the speed of N2" type sound N4. III - WARNING APPEARANCE CONDITIONS A - WARNINGS FROM WIRE INFORMATION LED; NOISE N3 only key V6 V13 V15 V16 V16 V14; N3 only V18; N3 only V18; N3 only V18; N3 only V20; N4 V21; N4 V22; N3 TYPE OF WARNING Low oil level Maintenance key Coolant level warning Low fuel Side airbag fault Front airbag fault Passenger's AIRBAG deactivated ABS fault Brake fluid / hydraulic level warning ABS fault Electronic brakeforce distributor fault Low oil pressure warning Low oil pressure warning Parking brake APPEARANCE CONDITIONS +acc/+ig on +acc AND service imminent +ig on* AND coolant level low +ig on* AND low fuel reached +ig on* AND airbag fault +ig on* AND airbag fault +ig on* AND passenger's airbag deactivated +ig on* AND ABS fault +ig on* AND fluid level low +ig on* AND ABS fault +ig on* AND braking system faulty +ig on* AND oil pressure low +ig on* AND oil pressure low +ig on* AND parking brake on AND V> 10 Km/h MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 5 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 109 Chapter 2 B - WARNINGS FROM VAN FRAMES LED; NOISE N2 N2 N2 N3 V4 V5 V8 V9; N3 V17 V19; N3 V20 flashing N4 active for 10s V24; N3* V24; N3* V24; N3* V24; N3* V27 TYPE OF WARNING Lamps on reminder warning Key in ignition reminder warning Auto gearbox position warning Overspeed warning Coolant temperature warning Engine management / EOBD fault Diesel pre-heating Unknown transponder fault Heated rear screen Battery charging fault Coolant temperature warning RRH door open RLH door open FRH door open FLH door open Auto g/b position indicator APPEARANCE CONDITIONS Headlamps on AND driver's door open (+acc/+ig on missing) Key present (+acc/+ig on missing) AND driver's door open Key in position S or not inserted AND driver's door open AND lever in position other than P V130 Km/h (programmable in the BSI) +ig on* AND T° too high +ig on AND engine ECU fault +ig on AND pre-heating in progress +ig on/+cranking AND faulty system (unknown transponder) +ig on*/+cranking AND heated rear screen activated +ig on* AND +EXC+BAT-2. 5V +acc/+ig on* AND T° too high 1 door open AND +acc/+ig on* +ig on*/+cranking * Engine running or not MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 5 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 110 Chapter 2 MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 5 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 111 Chapter 3 INSTRUMENTATION FUNCTION When the ignition is switched on, the digital display shows: · · · Ifor 2 seconds: the maintenance indicator for 5 seconds maximum: the oil level gauge and finally: the mileometer (until the ignition is switched off) MAINTENANCE INDICATOR A - GENERAL 1 - Interval between maintenance operations Engine Petrol/diesel HDI Diesel (excl. HDI) Usage mode* Normal Severe Customised Normal Severe Customised frequency of maintenance operations 20000 Km or 12500 miles or 1 year 15000 Km or 10000 miles or 1 year Multiples of 500 Km or 1 month 15000 Km or 10000 miles or 1 year 10000 Km or 6000 miles or 1 year Multiples of 500 Km or 1 month 2 - Case of more than 2000 km to service · The maintenance indicator shows the distance remaining for 2 seconds. The "key" symbol illuminates for 2 seconds then disappears. · 3 - Case of less than 2000 km to service · The maintenance indicator shows the distance remaining for 5 seconds. [. . . ] When leaving the FACTORY / in after-sales (= supplier FACTORY exit configuration), the radios are configured as followed: · Fader active. · Volume automatically linked to speed: OFF. · Hi-Fi version for RD2, non Hi-fi for RB2. MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 10 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 200 Chapter 1 II - GENERAL LAYOUT 9 8 8500 0004 1 8413 7 6 10 11 2 8410 BSI 5 8415 4 3 8402 8420 8425 8430 8435 8440 8445 Key: single arrow = wire connection triple arrow = multiplexed connection COMPONENTS BSI Built-in Systems Interface 8420 Speaker on front left hand door 8425 Speaker on front right hand door 8430 Speaker on rear left hand door 8435 Speaker on rear right hand door 0004 MultiFunction Screen 8402 Aerial 8410 Radio 8413 Steering control wheel remote 8440 Front left hand tweeter 8445 Front right hand tweeter 8415 CD changer 8500 Navigation MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 10 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 201 Chapter 1 CONNECTIONS n° 1 2 3 4 5 6 7 8 9 10 11 Signal Request to change radio and CD changer status Vehicle speed + VIN + brightness/contrast level Output signal (possibly function of vehicle speed) CD audio input Navigation audio input Change of status of CD changer CD changer status Navigation status Change of status of navigation Radio status Change in status of radio Type All or nothing VAN Analogue Analogue Analogue VAN VAN VAN VAN VAN VAN MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 10 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 202 Chapter 1 MULTIPLEXED BSI - XSARA PICASSO AND XSARA ­ PART 10 © AUTOMOBILES CITROËN Toute reproduction ou traduction même partielle sans l'autorisation écrite d'AUTOMOBILES CITROËN est interdite et constitue une contrefaçon 203 Chapter 2 RADIO OPERATING PRINCIPLE I- SWITCHING ON / OFF A - GENERAL DESCRIPTION The radio is switched on and off by: · · · pressing the "ON" button on the front of the radio, switching the ignition on or off*, inserting a CD when the + accessories is present (RD2). * If the radio was on before the ignition was switched off (vehicle stationary), the radio will work when the + accessories reappears. B - SUPPLY MANAGEMENT The MultiFunction Screen controls the supply to the radio: · When the +VAN is present. The radio sends on and off requests to the MultiFunction Screen. [. . . ]