Service TrainingCommercial VehiclesSelf-study Programme 370The Crafter Electrical systemDesign and functiones, in part or in w l purpos hole ercia , is n m m ot p o c erm or e t a itte iv r du rp o nl f e ngn AG. Volkswagen AG do es n wage s k l ot g o yV ua b ran ed s i tee r o h t or u ac a ssility ab y li an pt cerrectness of i t to the co nf o r m spec atio h re n in witthi sd o cu m enht rig py Co t.agen lksw Vo byAG.Prote cted byc o p yri gh t . C op yies, in part or in w l purpos hole ercia , is n m ot compe rm itte ddo s ag Innovations in automotive This self-study programme is intended to explain ksw engineering are alsoetaking not Vol gu y ara db place in the rcommercial vehicle segment. these functions and help you to understand e nte is eo ho t The Volkswagen Crafter is therefore fitted with r atheir interconnections better. au c ss extensive electrical equipment and with electrical and optical data bus systems.ility ab y li an pt ceolkswagen AG en AG. VIn comparison with the predecessor model, these systems enable familiar electrical functions to be actuated in different ways and new functions to be implemented.un lerrectness of i t to the co nform spec a t i h re o n in wit thi sr te o iva r rp fo g ndo c um enThe self-study programme shows the design and function of new developments. The contents will not be updated.For current testing, adjustment and repair instructions, refer to the relevant service literature.2ht rig py Co t.agen lksw Vo byAG.Prote cted by c o py rig h t . Co py iS370_087NEWImportant NoteContentsAG. Volkswagen AG d agen oes ksw not l o gu yV b ara d e nte is r o eo th u ra a s s Introduction . . . . . . . . . . . . . . . . . . . . . . . . . c.es, in part or in w l purpos hole ercia , is n m ot p om c r erm o e t a itte riv du p or nl f e g n......................... 4Vehicle electrical system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14Ignition lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46Anti-theft system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50Dash panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56ht rig py Co t.ility ab y li an pt cerrectness of i t to the co nform spec at i h re o n wit in t hisdo c um enConvenience systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60AG.Tachograph . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76Special control units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .78Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80Glossary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82Test yourself . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83agen lksw Vo byProte cted by c o py rig ht . C op yi3IntroductionData bus systemsData bus networkingn AG. Volkswagen AG do es n wage s k l ot g The Volkswagen Crafter's control units are networked o yV ua b d ran e s via the CAN data bus and the MOST data bus. i tee r o h t or u ac a ssility ab y li an pt ceNetworking enables data to be exchanged between the individual control units. Instead of using conventional (discrete) cable connections, the data are transmitted via the data buses in digital form as an electrical signal or as a light signal. This makes it possible to make data available to several control units.es, in part or in w l purpos hole ercia , is n m m ot p o c erm or e t a itte iv r du rp o nl f e ngrrectness of i t to the co nf o r m spec atio h re n in witThe CAN data bus is sub-divided into three individual systems, the CAN drive data bus, the CAN convenience data bus and the CAN diagnostic data bus. All three bus systems are connected to each other via the electronic ignition lock D9, and are therefore able to exchange information.ht rig py Co t.thi sd o cu m enDiagnostic interface CAN drive data bus CAN convenience data busMOST data bus interface MOST data busData bus K-wire Serial data cable S370_0804agen lksw Vo byAG.Prote cted byc o p yri gh t . C op yiLegend D9 E16 Electronic ignition lock Heater/heat output switches, in part or in w l purpos hole ercia , is n m ot p om c r erm o e t a itte riv du p or nl f e g nJ104 ABS control unit J234 Airbag control unit k s l w o a V g . e G J285 Control unit in dash panel insert n A AG do agen es n ksw l o o J301 t gu Air conditioning system control unit yV ara db e J345 Trailer detector control unit nte ris o eo h t J364 Auxiliary heater control unit ra au c ss J386 Driver door control unit J412 Mobile telephone operating electronics control unit J446 Parking aid control unit J502 Tyre pressure monitor control unit J503 Control unit with display for radio and navigation J514 Electronic manual gearbox control unit J519 Onboard supply control unit J527 Steering column electronics control unit J528 Roof electronics control unit J604 Auxiliary air heater control unit J621 Tachograph control unit J623 Engine control unit J764 Electronic steering column lock control unit J819 Control unit for middle of dash panel J820 Control unit for programmable special functionsility ab y li an pt cerrectness of i t to the co nform spec at i h re o n wit in t hisR R41 T16Radio CD changer16-pin connector (diagnostic connection)do c um enS370_001ht rig py Co t.agen lksw Vo byAG.Prote cted by c o py rig h t . Co py i5IntroductionInstallation locations of the electrical componentspe rm itte dOverview of installation locationses, in part or in w l purpos hole ercia , is n m ot comThe vehicle electrical system has a decentralised structure; the fuse and relay installation locations are therefore in different locations throughout the vehicle.un leAG. Volkswagen AG d agen oes ksw not l o gu yV b ara d e nte is r o eo h ut ra a c s sility ab y li an pt cerrectness of i t to the co nform spec a t i h re o n in wit thi sr te o iva r rp fo g ndo c um enFuse holder (SA), on right-hand side of battery, visible only following removalConnector (T16, diagnostic connection), on the left A pillar6ht rig py Co t.Junction boxes 2 and 3 for bus systems, on the right A pillaragen lksw Vo byAG.Prote cted by c o py rig h t . Co py iFuse holder D (SD), beneath the driver's seatFuse holder B (SB), left A pillarAG. Volkswagen AG d agen oes ksw not l o gu yV b ara d e nte is r o eo th u ra a c s sility ab y li an pt ceurposes, in part or in wh ole, cial p is n mer m ot p o c erm or e t a itte v i r d pun lerrectne s s o f i t to the co n form spec atio h re n wit i n thi sd o c um enr fo ngJunction box 1 for bus systems, beneath the front left dash panelS370_002ht rig py Co t.Fuse holder C (SC), on the left A pillaragen lksw Vo byAG.Prote cted by c o py rig ht . C op yi7IntroductionInstallation locations of the control units in the CAN drive data busControl units and installation locationsgen AG . gen AG The adjacent illustration shows swa control units which does no kthe l o t gu V by bus data communication ara take part in CAN driveisdata ed nte r o eo h and their installation ut locations. ra a c surposes, in part or in wh ole, cial p is n mer m ot p o c erm or e t a itte v i r d pVolkswaData are transmitted at a speed of 500 kbit/s. Transmission is carried out via the CAN high cable and the CAN low cable. CAN high cables are green/white and the CAN low cables are green. To ensure reliable data transmission, the CAN cables are twisted together. The CAN drive data bus is not 1-wire-capable; if a CAN cable fails, no data transmission is possible.un lesSteering column electronics control unit J527, on the steering columnility ab y li an pt cerrectne s s o f i t to the co n form spec atio h re n wit i n thi sd o c um enr fo ng8ht rig py Co t.agen lksw Vo byAG.Prote cted by c o py rig h t . Co py iElectronic ignition lock D9, on the right next to the steering wheelABS control unit J104, on the left in the engine compartmentAG. Volkswagen AG d agen oes ksw not l o V gu y b ara d nte ise r o eo h t u ra a c s sility ab y li an pt cees, in part or in w l purpos hole ercia , is n m m ot p o c erm or e t a itte iv r du rp o nl f e ngrrectness of i t to the co nf o r m spec atio h re n in witthi sd o cu m enS370_004ht rig py Co t.Engine control unit J623, on the left in the engine compartmentAG.Prote cted byagen lksw Vo byc o p yri gh t. C op yi9Introductionurposes, in part or in wh ole, cial p is n mer m ot p o c erm or e t a itte v i r d pun leAG. Volkswagen AG d agen oes ksw not l o gu yV b ara d e nte is r o eo h ut ra a c s sInstallation locations of the control units in the CAN convenience data busControl units and installation locationsility ab y li an pt cerrectne s s o f i t to the co n form spec atio h re n wit i n thi sd o c um enThe adjacent illustration shows the control units which take part in CAN convenience data bus data communication and their installation locations. Data are transmitted at a speed of 83.3 kbit/s. Transmission is carried out via the CAN high cable and the CAN low cable. CAN high cables are brown/red and the CAN low cables are brown.r fo ngAir conditioning system control unit J301, in centre of dash panelThe CAN convenience data bus is 1-wire-capable; if a CAN cable fails, data transmission remains possible.Control unit for middle of dash panel J819, in centre of dash panelRadio R/control unit with display for radio and navigation J503 *, in centre of dash panel* Acts as the interface for the MOST infotainment data busElectronic ignition lock D9, on the right next to the steering wheel10agen lksw Vo byTo ensure reliable data transmission, the CAN cables are twisted together.ht rig py Co t.AG.Prote cted by c o py rig h t . Co py iAirbag control unit J234, beneath the centre consoleAuxiliary heater control unit J364, in moulded headlining near to the interior mirror Roof electronics control unit J528, in moulded headlining near to the interior mirrorTrailer detector control unit J345, beneath the front left seatControl unit for programmable special functions J820, beneath the front left seatAG. Volkswagen AG d agen Parking aid control oes unit J446, ksw not l o yV ua beneath the front leftgseat b d ran e is tee r o h t or u ac a ssility ab y li an pt cees, in part or in w l purpos hole ercia , is n m m ot p o c erm or e t a itte iv r du rp o nl f e ngrrectness of i t to the co nf o r m spec atio h re n in witTyre pressure monitor control unit J502, beneath the front left seatthi sd o cu m enDriver door control unit J386, in the front left door Onboard supply control unit J519, on the left A pillar S370_003ht rig py Co t.agen lksw Vo byAG.Prote cted by c o py rig h t . Co py i11IntroductionInstallation locations of the control units in the MOST infotainment data busControl units and installation locationses, in part or in w l purpos hole ercia , is n m m ot p o c erm or e t a itte iv r du rp o nl f e ngAG. Volkswagen AG d agen oes ksw not l o gu yV b ara d e nte is r o eo th u ra a c s sility ab y li an pt cerrectness of i t to the co nf o r m spec atio h re n in witThe optical MOST data bus is used to exchange data between the radio/control unit with display for radio and navigation, the CD changer and the mobile telephone operating electronics control unit by means of light waves. In comparison with radio waves, light waves have very short wavelengths, do not generate electromagnetic interference waves, are simultaneously insensitive to these and have a significantly higher data transmission rate than electronic data bus systems. On routing, the radius of the fibre optical cable must be at least 25 mm.Mobile telephone operating electronics control unit J412, behind the glove boxControl unit with display unit for radio and navigation J503/radio R, in centre of dash panel12ht rig py Co t.agen lksw Vo byAG.Prote cted by c o py rig ht . C op yiBesides the familiar CAN data bus systems, the Volkswagen Crafter is also equipped with an optical data bus system. This data bus system has been named according to the "Media Oriented Systems Transport" (MOST) cooperation. This co-operation has been established by various car manufacturers, their suppliers and software companies in order to implement a standardised system for fast data transmission.thi sd o cu m enurposes, in part or in wh ole, cial p is n mer m ot p o c erm or e t a itte v i r d pun len AG. Volkswagen AG do es n wage s k l ot g o yV ua b ran ed s i tee r o h t or u ac a ssr fo ngDuring diagnosis, please observe the Guided Fault Finding instructions.ht rig py Co t.ility ab y li an pt cerrectne s s o f i t to the co n form spec atio h re n wit i n thi sd o c um enCD changer R41, centre of vehicle interiorS370_071agen lksw Vo byAG.Prote cted byc o p yri gh t . C op yi13Vehicle electrical systemBatteriesEquipmenturposes, in part or in wh ole, cial p is n mer m ot p o c erm or e t a itte v i r d pun leAG. Volkswagen AG d agen oes ksw not l o V gu y b ara d nte ise r o eo h t u ra a c s sility ab y li an pt cerrectne s s o f i t to the co n form spec atio h re n wit i n thi sd o c um enThe Volkswagen Crafter can be optionally equipped with a dual-battery vehicle electrical system; in this case, a starter and a vehicle electrical supply battery are installed.Starter batteryVehicle electrical system batteryTo supply high-current, body-side consumers, a second battery, located on the left of the engine compartment, is available in addition to the starter battery (left-hand drive vehicles only). This second battery is not intended as a starter battery. By supplying the high-current consumers, it is instead intended to protect the starter battery from discharge, thereby maintaining the vehicle's ability to start.14ht rig py Co t.agen lksw Vo byAG.Prote cted byThe vehicle electrical system's standard 12 V vehicle voltage is supplied by the maintenance-free starter battery. The starter battery is installed in the covered battery recess in front of the driver's seat (left-hand drive vehicle) or the front passenger's seat (right-hand drive vehicle). A vent pipe emerges into the open air from the recess.c o p yri gh t. C op yir fo ngS370_049S370_050Functional diagramThe second battery A1 is only available in combination with the battery isolation relay J7. This prevents battery A from being drained wagen AG . Volksby gen AG d wato s k l consumers which are connected the second battery.oes not g o yV ua b ran ed At the same time, drainage of the second battery tee ris o h t or u by the standards a consumers is prevented. aces, in part or in w l purpos hole ercia , is n m ot p om c r erm o e t a itte riv du p or nl f e g nsility ab y li an pt cerrectness of i t to the co nform spec at i h re o n wit in t hisJ519J7SASSSSSSdo c um enLegend A A1 B J7 J519 SA TV32 Battery Second battery Starter Battery isolation relay Onboard supply control unit Fuse holder A Jump start connectionAG.Prote cted byA1ht rig py Co t.agen lksw Vo byc o p yri gh t . C op yiTV32 A BS370_051 Signal output Ground Signal input Positive CAN data bus cableThe signal cable colours shown in the illustration apply to all subsequent functional diagrams.15Vehicle electrical systemJump start connectionsEquipmentes, in part or in w l purpos hole ercia , is n m ot compe rm itte dThe Volkswagen Crafter is equipped with a and a negative connection for jump-starting and for charging the battery.un leAG. Volkswagen AG d agen oes ksw not l o gu yV b ara d e nte is r o eo h ut ra a c s positive sility ab y li an pt cerrectness of i t to the co nform spec a t i h re o n in wit thi sPositive jump start connectionJump start connectionTo connect a jump-starting cable or a battery charger, a connection point for the positive cable is located on the left-hand side of the air filter housing in the engine compartment.r te o iva r rp fo g ndo c um enNegative jump start connectionTo connect a jump-starting cable or a battery charger, a connection point for the negative cable is located on the left-hand wing in the engine compartment.Jump start connection16ht rig py Co t.agen lksw Vo byAG.Prote cted by c o py rig h t . Co py iS370_052S370_053Negative main connectionThe optional, main connection for the battery negative cable is located on the right next to the accelerator pedal. The connection and the ground bolt can be separated by pulling the red actuation tab. This enables the battery to be isolated from the vehicle electrical system if necessary or prescribed for AG. Volkswagen AG d agen oes repair work. n lkswo yV db e ris tho u a ssot g ua ran tee or acpe rm itte dun leMain connectionActuation tab S370_054ility ab y li an pt cees, in part or in w l purpos hole ercia , is n m ot comrrectness of i t to the co nform spec a t i h re o n in wit thi sr te o iva r rp fo g ndo c um enht rig py Co t.agen lksw Vo byAG.Prote cted by c o py rig ht . C op yi17Vehicle electrical systemOnboard supply control unitInstallation locationThe onboard supply control unit (OBSCU) J519 is located, together with the fuse and relay box, on the left of the vehicle interior in the footwell beneath the instrument panel.urposes, in part or in wh ole, cial p is n mer m ot p o c erm or e t a itte v i r d pun len AG. Volkswagen AG do es n wage s k l ot g o yV ua b ran ed s i tee r S370_006 o h t or u a a c ssility ab y li an pt ceVariantsRelay boxOnboard supply control unitrrectne s s o f i t to the co n form spec atio h re n wit i n thi sd o c um enIt is available in the following variants: Standard Low line Mid line and High lineThe different variants offer various functions.r fo ngFuse box18ht rig py Co t.agen lksw Vo byAG.Prote cted byc o p yri gh t . C op yiS370_007FunctionsFunction Exterior light control system with bulb monitoring High-level brake light Fog lights Turn signal actuation Interior light control system X X Standard X Low line X Mid-line X X X X X High-line X X X X X X X X X X X X X X X X X X X X X X X XRear window wiper and washer systemes, in part or in w l purpos hole ercia , is n m ot compe rm itte dun leen AG AG. VolkswagX X does agen ksw not l o V g y u b ara ed nte Interior convenience light ris o eo h t u ra a c s sWindscreen wiper and washer systemXXility ab y li an pt cerrectness of i t to the co nform spec a t i h re o n in wit thi sHeated rear window Heated windscreen Central locking: Sliding door, hinged rear door Central locking: 2nd sliding door Rotary light switch input Sensor signal and switch inputr te o iva r rp fo g nXXXX XX XXXVent windowsdo c um enHeadlight washer system Auxiliary turn signal module Alarm function ATA function Central locking: Front passenger door Window regulator: Front passenger doorht rig py Co t.X X X X X XXAG.X X Xagen lksw Vo byProte cted byc o p yri gh t. C op yiXX X X19Vehicle electrical systemLight switchFunctiones, in part or in w l purpos hole ercia , is n m ot p om c r erm o e t a itte riv du p or nl f e g nn AG. Volkswagen AG do es n wage s k l ot g o yV ua b ran ed s i tee r o h t or u ac a ssility ab y li an pt cerrectness of i t to the co nform spec at i h re o n wit in t hisThe light switch E1 is responsible for actuating the exterior light functions. The onboard supply control unit reads in the signals from the voltage-coded light switch directly. The signals for the turn signal and main beam functions are transmitted from the steering column electronics control unit via the CAN drive data bus and the CAN convenience data bus.do c um enVariants The light swicth is available in eight different variants.Variant 1 Off Variant 2 Autom. driving lights Off Variant 3 Off Variant 4 Autom. driving lights Off Variant 5 Left parking light Variant 6 Left parking light Variant 7 Left parking light Variant 8 Left parking lightSide lightSide lightRight parking light OffDipped beamSide lightDipped beamSide lightRear fog lightDipped beam Rear fog lightRear fog light Fog lightDipped beam Rear fog light Fog lightSide lightDipped beam Rear fog light20ht rig py Co t.agen lksw Vo byAG.Prote cted byc o p yri gh t . C op yiS370_005Right parking light Autom. driving lights OffRight parking light OffRight parking light Autom. driving lights OffSide lightSide lightDipped beam Rear fog light Fog lightSide lightDipped beam Rear fog lightDipped beam Rear fog light Fog lightTurn signal control systemFunction descriptionwag The onboard supply control unit is the master for the olks yV b turn signal function and carries out the various turn ed ris ho t signal functions. It receives all requests to actuate au the ss turn signals, prioritises these and is the only control unit to implement a turn signal pulse on the CAN data bus. All of the other involved control units evaluate this turn signal pulse.olkswagen AG en AG. V does not gu ara nte eo ra cility ab y li an pt cees, in part or in w l purpos hole ercia , is n m ot p om c r erm o e t a itte riv du p or nl f e g nrrectness of i t to the co nform spec at i h re o n wit in t hisTurn signal actuation priorityThe turn signals are actuated according to the following piority:● ● ●1 Airbag hazard warning flashing 2 Special alarm flashing 3 Direction indication or hazard warning flashing● ●4 ATA alarm flashing 5 Central locking feedback flashingdo c um enAirbag hazard warning flashingElectronic ignition lock D9Airbag control unit J234 Onboard supply control unit J519 S370_008agen lksw Vo byAG.In the event of airbag deployment, the airbag control unit transmits a CAN message to the onboard supply control unit. The hazard warning flashing function is then triggered.This function is deactivated by actuating the hazard warning lights button (E229) once or by switching the ignition off, on and off again.Turn signal bulbsht rig py Co t.Prote cted by c o py rig ht . C op yi21Vehicle electrical systemn AG. Volkswagen AG do es n wage s k l ot g o yV ua b ran ed s i tee r o The control unit for programmable special functions th or u ac a can request alarm flashing with a pre-specified on/off ssSpecial alarm flashingphase from the onboard supply control unit.es, in part or in w l purpos hole ercia , is n m ot p om c r erm o e t a itte riv du p or nl f e g nSwitchility ab y li an pt ceDepending on the way in which the control unit for programmable special functions is programmed, the following lighting facilities can be actuated in the event of special alarm flashing: - Main beam, - Fog lights and - Turn signalsControl unit for programmable special functionsrrectness of i t to the co nform spec at i h re o n wit in t hisOnboard supply control unitThe special alarm flashing function is used, e.g. in emergency vehicles.Bulbsdo c um enS370_009Hazard warning flashingThe onboard supply control unit receives the hazard warning flashing signal from the control unit for middle of dash panel J819, which reads in the signals from the hazard warning lights button E229. The onboard supply control unit then actuates all turn signals. No bulb monitoring is carried out during hazard warning flashing. The hazard warning flashing function is always operational.Control unit for middle of dash panelHazard warning lights button E229 Onboard supply control unit J519Turn signal bulbs S370_01022ht rig py Co t.agen lksw Vo byAG.Prote cted byc o p yri gh t . C op yiDirection indicationThe signal for direction indication is received by the onboard supply control unit from the steering column electronics control unit J527, which reads in the signals from the turn signal switch E2 in voltage-coded form. The electronic ignition lock (EIL) D9 transfers the signals from the CAN drive data bus to the CAN convenience data bus. The onboard supply control unit actuates the turn signal bulbs as requested. During direction indication, the turn signal bulbs are monitored for bulb failure. The bulbs' flashing frequency is doubled in the event of bulb failure. Actuation of the turn signal warning lamps is carried out via the CAN convenience data bus and the control unit in the dash panel insert. The direction indication function is only active in the case of "terminal on". ksw ol15 agen AG en AG. Vdoes not gu ara nte eo ra curposes, in part or in wh ole, cial p is n mer m ot p o c erm or e t a itte v i r d pun lewag olks yV b ed ris ho t au ssility ab y li an pt cerrectne s s o f i t to the co n form spec atio h re n wit i n thi sd o c um enSteering column electronics control unit J527Onboard supply control unit J519Turn signal bulbs, rightht rig py Co t.CAN drive data busCAN convenience data busTurn signal switch E2agen lksw Vo byAG.Prote cted byc o p yri gh t . C op yir fo ngS370_01123Vehicle electrical systemATA alarm flashingThe ATA alarm flashing function is active if no AG. Volkswagen AG d agen oes authorised key is located in the electronic ksw not Roof electronics l o gu yV b ara ignition lock (EIL). d control unit e nte is r o eo th The alarm is output via the alarm horn H12 and the u ra a c s s turn signals. In this case, the roof electronics control unit transmits Onboard supply control a request to the onboard supply control unit via the unit CAN convenience data bus. Bulb monitoring is not carried out during ATA alarm flashing.urposes, in part or in wh ole, cial p is n mer m ot p o c erm or e t a itte v i r d pun leility ab y li an pt ceAlarm hornTurn signalsrrectne s s o f i t to the co n form spec atio h re n wit i n thi sd o c um enS370_012r fo ngUnlocking the vehicle is indicated by all of the turn signals' flashing twice. Locking the vehicle is indicated by all of the turn signals' flashing once. The request for central locking feedback flashing is transmitted by the electronic ignition lock via the CAN convenience data bus. This function is only active if no authorised key is located in the electronic ignition lock.24AG.Central locking feedback flashingRadio remote controlht rig py Co t.agen lksw Vo byProte cted by c o py rig ht . C op yiElectronic ignition lock Onboard supply control unitS370_013 Turn signalsSpecial direction indicationThe control unit for programmable special functions is able to request direction indication from the onboard supply control unit. The onboard supply control unit handles this request like a request from the steering column electronics control units, although these requests have priority. The control unit for programmable special functions does not send a request, or ends its request, as soon as it detects a request for direction indication from the steering column electronics control unit.Control unit for programmable special functions Onboard supply control uniturposes, in part or in wh ole, cial p is n mer m ot p o c erm or e t a itte v i r d pun len AG. Volkswagen AG do es n wage s k l ot g o yV ua b ran ed s i tee r o h t or u ac a ssS370_014 Turn signalsSpecial hazard warning flashingThe control unit for programmable special functions is able, like the control unit for middle of dash panel, to request hazard warning flashing from the onboard supply control unit. It withdraws its request as soon as it detects a request from the control unit for middle of dash panel. This function is deactivated either by the control unit for programmable special functions or by actuating the hazard warning lights button.r fo ngControl unit for programmable special functionsOnboard supply control unitility ab y li an pt cerrectne s s o f i t to the co n form spec atio h re n wit i n thi sd o c um enHazard warning lights buttonControl unit for middle of dash panelht rig py Co t.agen lksw Vo byAG.Prote cted byc o p yri gh t . C op yiTurn signalsS370_01525Vehicle electrical systemLightingParking lightThe left or right side light bulbs and the left or right tail light bulbs are actuated by the onboard supply control unit. The request to switch on the parking lights comes directly from the light switch. The parking light function is active if no authorised key is located in the EIL. Bulb monitoring is carried out when the parking light function is on.Light switchOnboard supply control unitS370_016 Left side light bulb Left tail light bulbSide light and tail lightes, in part or in w l purpos hole ercia , is n m m ot p o c erm or e t a itte iv r du rp o nl f e ngThe left and right side and tail light bulbs are actuated by the onboard supply control unit. The request to switch on comes directly from the light switch. The side and tail lights can also be switched on if the ignition key has been removed, in which case an acoustic signal is emitted.AG. Volkswagen AG d agen oes ksw not l o gu yV b ara d e nte is r o eo th u ra a c s sLight switchOnboard supply control unitility ab y li an pt cerrectness of i t to the co nf o r m spec atio h re n in witthi sd o cu m enSide light and tail light bulbsagen lksw Vo by26ht rig py Co t.AG.Prote cted by c o py rig ht . C op yiS370_017Dipped beam (driving lights)The left and right dipped beam bulbs are actuated by the onboard supply control unit. The request to switch on comes directly from the light switch. Dipped beam is switched on in the case of "terminal 15 on" and when the switch is set to dipped beam. The headlights, side lights, tail lights and number plate lights are also switched on. The side lights are switched on instead of dipped beam in the case of "terminal 15 off".es, in part or in w l purpos hole ercia , is n m ot compe rm itte dun leAG. Volkswagen AG d agen oes ksw not l o gu yV b ara d e nte is r o eo h ut ra a c s sility ab y li an pt cerrectness of i t to the co nform spec a t i h re o n in wit thi sLight switchDipped beam bulbs and side light bulbsOnboard supply control unitr te o iva r rp fo g n"Terminal 15 on" via CAN data busdo c um en"Terminal 15 on" discreteTail light bulbsagen lksw Vo byAG.Electronic ignition lockS370_018ht rig py Co t.Prote cted by c o py rig h t . Co py i27Vehicle electrical systemAutomatic driving lights (option)The automatic driving lights are controlled by the rain and light sensor G397, which automatically switches the driving lights on and off when the light switch is set to the "Auto" position. The roof electronics control unit reads in the signals from the rain and light sensor, and sends a corresponding message on the CAN convenience data bus. The onboard supply control unit then supplies the dipped beam headlight bulbs with current.es, in part or in w l purpos hole ercia , is n m ot p om c r erm o e t a itte riv du p or nl f e g nAG. Volkswagen AG d agen oes ksw not l o V gu y b ara d nte ise r o eo h t u ra a c s sility ab y li an pt cerrectness of i t to the co nform spec at i h re o n wit in t hisRain and light sensorDipped beam bulbs and side light bulbsRoof electronics control unitdo c um enLight switchOnboard supply control unit Tail light bulbs S370_01928ht rig py Co t.agen lksw Vo byAG.Prote cted byc o p yri gh t. C op yiDaylight driving lights (DDL)The master for the daylight driving lights is the control unit in dash panel insert, via which the following functions are activated.● ● ● ●The daylight driving lights are switched off when the engine is switched off ("terminal 61 not active"). When the light switch is switched to the "side light" or "dipped beam" position, the daylight driving lights are also switched off, and the light function selected at the light switch is active. In countries in which daylight driving lights are legally required, only the headlight flasher, not main beam, is permissible when DDL is activated. In countries in which the daylight driving lights can be activated/deactivated by the user via the instrument cluster, the headlight flasher and main beam are permissible when DDL is activated. The logic for this is contained in the control unit in dash panel insertDipped beam Side lights Tail lights Number plate lightsWhen the engine is running, "terminal 61 active" is sent by the onboard supply control unit via the CAN convenience data bus. The control unit in dash panel insert then activates the daylight driving lights via the onboard supply control unit. The daylight driving light function can be activated and deactivated via the control unit in dash panel insert. It cannot be deactivated in those countries in which daylight driving lights are legally required!es, in part or in w l purpos hole ercia , is n m m ot p o c erm or e t a itte iv r du rp o nl f e ngAG. Volkswagen AG d agen oes ksw not l o gu yV b ara d e nte is r o eo h ut ra a c s sDipped beam bulbs and side light bulbsility ab y li an pt cerrectness of i t to the co nf o r m spec atio h re n in witControl unit in dash panel insertOnboard supply control unitTail light bulbsthi sd o cu m enagen lksw Vo byAlternatorht rig py Co t.AG.Prote cted by c o py rig h t . Co py iS370_02029Vehicle electrical systemMain beam / headlight flasherThe steering column electronics control unit receives the signals from the headlight dipper/flasher switch E4 and, in the case of "terminal 15 on", sends a corresponding message on the CAN convenience data bus. The onboard supply control unit then switches main beam or the headlight flashers on and also sends a message on the CAN convenience data bus, whereupon the control unit in dash panel insert actuates the main beam warning lamp K1.Steering column electronics control unitHeadlight dipper/flasher switchControl unit in dash panel insertes, in part or in w l purpos hole ercia , is n m ot compe rm itte dun leOnboard supply n AG. Volkswagen AG do es n wage s k l ot g control unit Vo ua by d ran e tee ris o h t or u ac a ssility ab y li an pt cerrectness of i t to the co nform spec a t i h re o n in wit thi sMain beam bulbS370_021 ABS control unitBrake lightThe brake light bulbs are actuated by the onboard supply control unit via semi-conductors. The request to switch on the brake lights comes - in discrete form via brake light switch F and - the CAN data bus via the electronic ignition lock from the ABS control unit - or, in vehicles without ABS, from the control unit in dash panel insert, which reads in the information from brake light switch F.r te o iva r rp fo g nElectronic ignition lock Control unit in dash panel insertht rig py Co t.do c um enBrake light bulbs30AG.Prote cted byAs soon as one of the two pieces of input information requests brake light actuation, the brake lights are switched on.Onboard supply control unitagen lksw Vo byc o p yri gh t . C op yiBrake light switch S370_022Reversing lightThe reversing light bulbs are actuated by the onboard supply control unit. The signals from the reversing light switch F4 are read in by the onboard supply control unit. The "terminal 15 on" terminal status of the electronic ignition lock D9 is transmitted via the CAN convenience data bus.Electronic ignition lockes, in part or in w l purpos hole ercia , is n m ot compe rm itte dun leAG. Volkswagen AG d agen oes ksw not l o gu yV b ara d e nte is r o eo th u ra a c s sility ab y li an pt ceOnboard supply control unitrrectness of i t to the co nform spec a t i h re o n in wit thi sReversing light switch Reversing light bulbsS370_026r te o iva r rp fo g ndo c um enht rig py Co t.agen lksw Vo byAG.Prote cted by c o py rig ht . C op yi31Vehicle electrical systemEmergency lightThe objective of the emergency light function is to avoid the failure of the vehicle's entire lighting system due to a single fault in the control unit or implausible signals from the light switch. The emergency light function is only active in the case of "terminal 15 on". Dipped beam, the tail lights and side lights are switched on in the event that the controller in the onboard supply control unit fails. The trailer tail lights are switched on in the event that the controller in the trailer detector control unit fails. On failure of one of the two controllers, the brake lights are only activated via discrete signal inputs to control units. The emergency light function is activated in the event of● ● ●Implausible light switch statuses, Failure of the CAN data bus or Failure of the rain and light sensor.Once the emergency light cause has disappeared, the emergency light function is independently deactivated. The dash panel insert indicates the emergency light function in the same manner as bulb failure.es, in part or in w l purpos hole ercia , is n m m ot p o c erm or e t a itte iv r du rp o nl f e ngAG. Volkswagen AG d agen oes ksw not l o gu yV b ara d e nte is r o eo h ut ra a c s sility ab y li an pt cerrectness of i t to the co nf o r m spec atio h re n in witLight switchFront vehicle lights Rear vehicle lightsOnboard supply control unitTrailer detector control unitElectronic ignition lockht rig py Co t.thi sd o cu m enControl unit in dash panel insertagen lksw Vo byAG.32Prote cted by c o py rig h t . Co py iTrailer lightsABS control unitS370_027Trailer lightinges, in part or in w l purpos hole ercia , is n m ot comThe trailer detector control unit J345 controls all of the lighting functions of a trailer connected to the vehicle.pe rm itte dun leAG. Volkswagen AG d agen oes ksw not l o gu yV b ara d e nte is r o eo th u ra a c s sility ab y li an pt cerrectness of i t to the co nform spec a t i h re o n in wit thi sInstallation locationThe trailer detector control unit is located on the righthand side beneath the front left seat.r te o iva r rp fo g ndo c um enTrailer detectionTrailer detection is carried out in purely electronic form. To do this, the brake light and the left-hand direction indicator are briefly supplied with current whilst switched off. The voltage level which is established is used to determine whether a trailer is connected. If a light is detected, a trailer is regarded as detected.CAN drive data busCAN convenience data busElectronic ignition lock Trailer detector control unit Onboard supply control unitABS control unitControl unit in dash panel insertLight switch Trailer lightsBrake light switchht rig py Co t.agen lksw Vo byAG.Prote cted by c o py rig ht . C op yiS370_028S370_02933Vehicle electrical systemWindscreen wiper and washer systemInstallation locationsIntermittent wiper switch E22 The switch is located in the steeringAG. Volkswagen AG d agen oes ksw not l o V gu y b ara d nte ise r o eo h t u ra column switch. a c s sility ab y li an pt cees, in part or in w l purpos hole ercia , is n m m ot p o c erm or e t a itte iv r du rp o nl f e ngIntermittent wiper switchrrectness of i t to the co nf o r m spec atio h re n in witthi sd o cu m enS370_059Wiper motor switch-over relay 234agen lksw Vo byAG.Prote cted byThe switch-over relays are located on the fuse and relay box on the left-hand A pillar.Wiper motor switch-over relay 1ht rig py Co t.c o p yri gh t. C op yiWiper motor switch-over relay 1 J368 and wiper motor switch-over relay 2 J369S370_060Wiping the windscreenun lepe rm itte dn AG. Volkswagen AG do es n wage s k l ot g o yV ua b ran ed s i tee r o h t or u ac a ssility ab y li an pt ceThe windscreen wiper is activated via the intermittent wiper switch E22.es, in part or in w l purpos hole ercia , is n m ot comDepending on the variant, the signals from the intermittent wiper switch are read in by the steering column electronics control unit (vehicles with ABS) or the electronic ignition lock (vehicles without ABS) and are sent on the CAN drive data bus and the CAN convenience data bus.The onboard supply control unit receives the signals and actuates wiper motor switch-over relay 1 J368 and wiper motor switch-over relay 2 J369. The wipers are switched on/off via wiper motor switch-over relay 1. Wiper motor switch-over relay 2 J369 is used to switch between the first and second wiper stage. The onboard supply control unit is the master for this function.rrectness of i t to the co nform spec a t i h re o n in wit thi sr te o iva r rp fo g ndo c um enCAN convenience data busJ519J368J369 SVLegend A Battery E22 Intermittent wiper switch J368 Wiper motor switch-over relay 1 J369 Wiper motor switch-over relay 2J519 J527 S Vht rig py Co t.agen lksw Vo byAG.Prote cted byc o p yri gh t . C op yiJ527A E22S370_061 Onboard supply control unit Steering column electronics control unit Fuse Windscreen wiper motor35Vehicle electrical systemRain and light sensorurposes, in part or in wh ole, cial p is n mer m ot p o c erm or e t a itte v i r d pun leAG. Volkswagen AG d agen oes ksw not l o gu yV b ara d e nte is r o eo h ut ra a c s sility ab y li an pt cerrectne s s o f i t to the co n form spec atio h re n wit i n thi sd o c um enIf the rain and light sensor G397 is installed and the intermittent function is active, wiping is requested by the sensor. It is connected to the roof electronics control unit. Data communication between the roof electronics control unit and the onboard supply control unit takes place via the CAN convenience data bus. The rain and light sensor can be used to control the interval times from "wipers off" to "continuous wiping in stage 1 or 2".r fo ngProte cted by c o py rig h t . Co py iDuring rain sensor operation, the roof electronics control unit acts as the master and the onboard supply control unit as the slave. This means that wiper control is carried out entirely by the roof electronics control unit; the onboard supply control unit only actuates wiper motor switch-over relay 1 J368 and wiper motor switch-over relay 2 J369 when requested to do so by the roof electronics control unit J528. The "touch-wiping" and "washing" switch positions are the exceptions.ht rig py Co t.Rain and light sensor G397Functional prerequisiteCommunication between the onboard supply control unit and the roof electronics control unit only takes place if the "rain/light sensor" option has been adapted as present in the variant coding in the EIL. If this is not the case, the onboard supply control unit controls the "intermittent wiping" function as in vehicles without a rain and light sensor.36agen lksw Vo byAG.Light-emitting diodePhoto diodesS370_084Speed reductionAt a vehicle speed of 5 km/h, the wiper speed is reduced. Functional prerequisite:●Speed reduction is withdrawn again under the following conditions:● ●● ●Intermittent function (rain and light sensor not installed) or Stage 1 or Stage 2Vehicle speed 8 km/h Actuation of the windscreen wiper switch for intermittent mode (intermittent, stage 1, stage 2, except touch-wiping and washing)Without rain and light sensorThe wiper speed is reduced by one stage, - From stage 2 to stage 1, - From stage 1 to intermittent of 6 sec. - From intermittent with an interval of 6 sec to intermittent with an interval of 9 sec.es, in part or in w l purpos hole ercia , is n m ot comWith rain and light sensorIf the sensor is installed, no speed reduction takes interval is adaptedpe rm itte dun leplace. n AG. Volkswagen AG do wage s no or intermittent s k l The wiping e speed o t gu yV b ara d e nte s with an interval by the sensor as required. i r eo ho t u ra a c ssility ab y li an pt cerrectness of i t to the co nform spec a t i h re o n in wit thi sCAN convenience data busJ528J519 J368 J369 SJ527r te o iva r rp fo g ndo c um enG397Legend A Battery E22 Intermittent wiper switch G397 Rain and light sensor J368 Wiper motor switch-over relay 1 J369 Wiper motor switch-over relay 2J519 J527 J528 S VOnboard supply control unit Steering column electronics control unit Roof electronics control unit Fuse Windscreen wiper motorht rig py Co t.VAE22agen lksw Vo byAG.Prote cted byc o p yri gh t . C op yiS370_06237Vehicle electrical systemRear window wiper and washer systemRear window wiperurposes, in part or in wh ole, cial p is n mer m ot p o c erm or e t a itte v i r d pun leAG. Volkswagen AG d agen oes ksw not l o gu yV b ara d e nte is r o eo h ut ra a c s sility ab y li an pt ceUp to two rear window wipers may be installed. The rear window wipers and the "rear window washing" function are switched on and off via the rear wiper switch E34. The "wiping on reversing" function is automatically switched on when reverse gear is engaged and the windscreen wipers are active. The onboard supply control unit is the master for these functions and actuates both the windscreen washer pump and the rear wipers. If the ignition (terminal 15) is switched off whilst the rear wipers are active, the rear wipers remain in their present position.The rear wiper switch has the following settings:●● ● ●Wash-wipe function on with intermittent rear wiping on Intermittent rear wiping on Intermittent rear wiping off Wash-wipe function onrrectne s s o f i t to the co n form spec atio h re n wit i n thi sd o c um enr fo ngCAN convenience data bus J519 J329 SJ527SE34 A V92 V93Legend A Battery E34 Rear wiper switch J329 Terminal 15 voltage supply relay J519 Onboard supply control unitJ527 V92 V93 S38ht rig py Co t.Sagen lksw Vo byAG.Prote cted by c o py rig h t . Co py iS370_065Steering column electronics control unit Rear left wing door window wiper motor Rear right wing door window wiper motor FuseFunctionsRear wiping with windscreen wipers switched offWhen the windscreen wipers are switched off, the rear window wiping function is carried out in intermittent mode with the standard interval time of 6 seconds.Rear window wiping with windscreen wipers set to "intermittent"When intermittent windscreen wiping is switched on, the rear window wiping function is dependent on the presence of a rain and light sensor.●●es, in part or in w l purpos hole ercia , is n m ot compe rm itte dun leksw Vol by d e ris tho u a ssWithout sensor: Rear wiping is synchronised with windscreen wiping With sensor: Rear wiping is carried out with the AG. Volkswagen of standard 6 Gd agen interval timeA o sec.es n ot g ua ran tee or acility ab y li an pt cerrectness of i t to the co nform spec a t i h re o n in wit thi sWindscreen wipers set to stage 1 or 2If the windscreen wiper switch for intermittent mode is set to stage 1 or 2, rear wiper actuation is always synchronised with the windscreen wipers, in which case the rear wipers only wipe for a defined percentage of the windscreen wiper cycle. This percentage is speed-dependent.●Rear door openThe wash-wipe function is interrupted when the vehicle is stationary and the rear door is open, and is continued when the rear door is closed.r te o iva r rp fo g n●ht rig py Co t.v 80 km/h: Rear wipers wipe for 1/10 of the windscreen wiper cycle. v 80 km/h: Rear wipers wipe for 1/7 of the windscreen wiper cycle.do c um enagen lksw Vo byAG.Prote cted byc o p yri gh t . C op yi39Vehicle electrical systemes, in part or in w l purpos hole ercia , is n m ot comHeated windscreenFunctionAn optional, heated windscreen may be installed; this contains two heating elements (e. g. driver and front passenger). The heated windscreen is switched on and off via the heated windscreen switch in the control unit for middle of dash panel. The switch contains a function indicator, which lights up when the heated windscreen is switched on. The maximum heating time is limited to 5 minutes.r te o iva r rp fo g npe rm itte dun len AG. Volkswagen AG do es n wage s k l ot g o yV ua b ran ed s i tee r o h t or u ac a ssFunctional prerequisite●●●●Switch for heated windscreen CAN convenience data bus FuseControl unit for middle of dash panel Onboard supply control unit Relay for heated windscreenBattery S370_07240agen lksw Vo byAG.The control unit for middle of dash panel is the master for this function. The function request is forwarded from the control unit for middle of dash panel to the onboard supply control unit via the CAN convenience data bus. The heated windscreen relay is actuated by the onboard supply control unit.Prote cted byFunctional prerequisite for reading in the switch and function indicator: CAN data bus signal "terminal 61 on" Functional prerequisite for actuating the heated windscreen: CAN data bus signal "terminal 61 on" Idle speed stable: The heated windscreen can only be actuated when the engine is running at a stable speed (approx. 800 rpm). Function abortion: CAN data bus signal "terminal 61 off"do c um enht rig py Co t.ility ab y li an pt cerrectness of i t to the co nform spec a t i h re o n in wit thi sc o p yri gh t . C op yiThe functional prerequisite and function abortion link takes place in the control unit for middle of dash panel.Heated windscreenHeated rear windowFunctionolkswagen AG . Vinstalled. An optional, heated rear windowamay be gen AG does The control unit for middle of dash panel is the master ksw not l o V In the case of rear wing doors, the heating wires for for gu this function. The heated rear window relay J9 and y ara db e nte s i r the heated rear window in left wing door Z26 and the the additional relay for heated rear window J109 o eo th u ra a in right wing door Z27 are wired c heated rear window (with interior monitor only) are located on fuse carrier s s in parallel. D beneath the driver's seat. Both relays are actuated In vehicles which are fitted with optional interior by the onboard supply control unit. monitoring, each heating wire is individually supplied with current.ility ab y li an pt cees, in part or in w l purpos hole ercia , is n m ot p om c r erm o e t a itte riv du p or nl f e g nThe heated rear window is switched on and off using the heated rear window button E230 in the control unit for middle of dash panel J819. The button contains a function indicator, which lights up continuously when the heated rear window is switched on. A fault is displayed by the indicator's flashing. The maximum heating time is limited to 15 minutes.Functional prerequisiteThe functional prerequisites correspond to those for the heated windscreen.rrectness of i t to the co nform spec at i h re o n wit in t hisdo c um enHeated rear window button CAN convenience data bus FuseControl unit for middle of dash panel Onboard supply control unit Heated rear window in left wing door Battery Heated rear window in right wing door Heated rear window relayht rig py Co t.agen lksw Vo byAG.Prote cted by c o py rig ht . C op yiS370_07341Vehicle electrical systemRoof electronics control unitGeneral functionThe roof electronics control unit J528 variants are dependent on the various special equipment items which are installed.olkswage G. V n AG Depending on equipment, the control unit is A does agen ksw not l o g responsible forbmanual operation and dimming of the yV ua d ran e s i tee r interior light and reading lights plus actuation of the o h t or u ac a rain and ss light sensor, anti-theft alarm system and sliding roof. It additionally houses the microphone for the hands-free system.ility ab y li an pt cees, in part or in w l purpos hole ercia , is n m m ot p o c erm or e t a itte iv r du rp o nl f e ngrrectness of i t to the co nf o r m spec atio h re n in witInstallation locationThe roof electronics control unit is located in the upper centre of the vehicle behind the trim panel for the interior lights and buttons.agen lksw Vo byProte cted by c o py rig h t . Co py ithi sd o cu m en42ht rig py Co t.AG.S370_057VariantsStandardVolkswagen AG n AG. Low line does age ksw with ATA, without glass n l ot g o sliding roof V y ua db ran e is tee r ho or ut Interior lighting ac a ssHigh-line with ATA, with glass sliding roof Interior lighting Separately operable reading spotlights for driver and front passengerInterior lightingun leility ab y li an pt ceurposes, in part or in wh ole, cial p is n mer m ot p o c erm or e t a itte v i r d pSeparately operable reading spotlights for driver and front passenger Glasses compartment Telephone hands-free microphone Switch for interior light and reading spotlights Interior light on/off (button) Door contact on/off (switch) Driver reading spotlight on/off (button) Front passenger reading spotlight on/ off (button)r fo ngSeparately operable reading spotlights for driver and front passengerrrectne s s o f i t to the co n form spec atio h re n wit i n thi sd o c um enTelephone hands-free microphone Switch for interior light and reading spotlights Interior light on/off (button) Door contact on/off (switch) Driver reading spotlight on/off (button) Front passenger reading spotlight on/ off (button) ATA interior monitor sensors (optional) Electronics incl. interface for the rain and light sensor Electronics for ATA/IM and interface to the alarm horn CAN interfaceAG.ht rig py Co t.Telephone hands-free microphoneSwitch for interior light and reading spotlights Interior light on/off (button)Door contact on/off (switch)Driver reading spotlight on/off (button)Front passenger reading spotlight on/ off (button)agen lksw Vo byProte cted by c o py rig h t . Co py iATA interior monitor sensors (optional) Electronics incl. interface for the rain and light sensor Electronics for ATA/IM and interface to the alarm horn CAN interface Switch for sliding roof Evaluation of sliding roof motor Hall senders43Vehicle electrical systemActuation of the interior lightsGeneral descriptionThe interior lighting is switched on via an automatic function (e.g. door open). If the interior illumination switch is now actuated, the interior lighting is switched off. It is only switched on again following further actuation of the switch.Actuation of the interior lightsThe interior lights are sub-divided into two circuits. The front circuit is influenced by the driver and front passenger doors, the rear circuit by the left and right sliding doors and the rear lid or rear door and the . Volkswage n AG d AG agen oes interior illumination switch E599. ksw not l o V The following components are ss actuated by the roof electronics control unit The front passenger reading light W13, The left interior light W16, The right interior light W17 and The driver side reading light W19.es, in part or in w l purpos hole ercia , is n m m ot p o c erm or e t a itte iv r du rp o nl f e ngy db ise r tho auThe are actuated by the onboard supply control unit - The front interior light W1, - The centre interior light W7 and - The rear interior light W43.ility ab y li an pt cegu ara nte eo ra c following componentsrrectness of i t to the co nf o r m spec atio h re n in witPrioritiesThe following priorities apply to all front and rear interior light control system applications:Priority Functionthi sd o cu m en2 3 4Manual activation via button/switchAutomatic interior light control system (doors/sliding doors/rear door) Automatic interior light control system (locking/unlocking/ignition)44agen lksw Vo by1Special alarm and ATA alarmAG.ht rig py Co t.Prote cted by c o py rig h t . Co py iFunctional examplees, in part or in w l purpos hole ercia , is n m m ot p o c erm or e t a itte iv r du rp o nl f e ngAG. Volkswagen AG d agen oes ksw not l o V gu y b ara d nte ise r o eo h t u ra a c s sility ab y li an pt cerrectness of i t to the co nf o r m spec atio h re n in witRear sliding roof control unitDriver side reading lightRear sliding roof motorFront passenger reading lightht rig py Co t.thi sd o cu m enRoof electronics control unit Left interior light Onboard supply control unitDriver door control unitRear left entry light Rear right entry light Front left entry light Front right entry light Interior light relayagen lksw Vo byAG.Prote cted byc o p yri gh t. C op yiRight interior lightFront interior lightCentre interior lightRear interior lightS370_05845Ignition lockElectronic ignition lockInstallation locationThe electronic ignition lock (EIL) D9 is located on the right-hand side next to the steering wheel.S370_030AG. Volkswagen AG d agen oes ksw not l o V gu y b ara d nte ise r o eo Different variants of the electronic ignition lock are h t u ra a c s installed. The variant is dependent on the radio sVariantsility ab y li an pt cefrequency of the central locking system and the presence of the steering column electronics control unit.es, in part or in w l purpos hole ercia , is n m ot p om c r erm o e t a itte riv du p or nl f e g nrrectness of i t to the co nform spec at i h re o n wit in t hisDistinguishing features●For vehicles with steering column electronics control unit (vehicles with ABS/ESP) and radio frequency of 433 MHz (Europe and other countries which use this frequency).●For vehicles with steering column electronics control unit (vehicles with ABS/ESP) and radio frequency of 315 MHz (Europe and other countries which use this frequency).●46ht rig py Co t.For vehicles without steering column electronics control unit (vehicles without ABS/ESP) and radio frequency of 433 MHz.Prote cted by●For vehicles without steering column electronics control unit (vehicles without ABS/ESP) and radio frequency of 315 MHz.do c um enagen lksw Vo byAG.c o p yri gh t. C op yies, in part or in w l purpos hole ercia , is n m ot p om c r erm o e t a itte riv du p or nl f e g nn AG. Volkswagen AG do es n wage s k l ot g o yV ua b ran ed s i tee r o h t or u ac a ● Mounting ● Immobilizer ssthe ignition keyImmobilizer and starting fucntions●●Mounting the transponder coil for polling the ignition key ID and transponder data Rotary lock inhibitor in the case of an unauthorised key●communication between the ignition key, engine control unit J623 and electronic steering column lock control unit J764 Reading in the steering column switch signals when no steering column electronics control unit is installed.ility ab y li an pt cerrectness of i t to the co nform spec at i h re o n wit in t hisStartingThe vehicle is started via communication between the immobilizer in the electronic ignition lock with the ignition key, the engine control unit and the electronic steering column lock control unit. By inserting a key into the EIL, the electronics are activated and the key is supplied with energy (inductively) from the EIL. The key is identified by means of bi-directional data exchange. The "drive authorisation system" (DAS) in the EIL releases the control units via the CAN data bus. At the same time, the mechanical lock (ESL, steering wheel lock) is released via a serial interface.do c um enht rig py Co t.Electronic ignition lockKey with transponderagen lksw Vo byAG.Prote cted byc o p yri gh t . C op yiElectronic steering column lock control unitEngine control unitS370_05547Ignition lockCentral locking system functionsThe electronic ignition lock (EIL) is the master control unit for all opening and closing functions. The vehicle can also be locked via radio remote control. The HF receiver is integrated into the EIL. The HF signals are decoded exclusively by the EIL. The resulting actuation requests are then transferred onto the CAN convenience data bus by the EIL and are read in by the driver door control unit J386.es, in part or in w l purpos hole ercia , is n m m ot p o c erm or e t a itte iv r du rp o nl f e ngThe driver door control unit actuates the driver door central locking motor V56 directly. The onboard supply control unit actuates - The front passenger door central locking motor V57, - The right sliding door central locking motor V58, . Volkswagen AG - The left sliding locking motor V95 and gen AG door central does wa s k not l o gu y V rear wing door central - db The ara e nte ris eo locking motor V96, tho when the driver door control unit sends a corresponding message on the CAN convenience data bus.ra cility ab y li an pt ceau ssrrectness of i t to the co nf o r m spec atio h re n in witKey with radio remote controlDriver door contact switch Driver door central locking motorht rig py Co t.thi sd o cu m enDriver door control unitFront passenger door contact switch Front passenger door central locking motoragen lksw Vo byAG.Prote cted byElectronic ignition lockOnboard supply control unit S370_05648c o p yri gh t . C op yiRear right door contact switch Right sliding door central locking motor Rear left door contact switch Left sliding door central locking motor Rear right door contact switchRear right central locking switch Rear wing door central locking motores, in part or in w l purpos hole ercia , is n m ot comDiagnostic interface functionpe rm itte dun leAG. Volkswagen AG d agen oes ksw not l o gu yV b ara d e nte is r o eo h ut ra a c s sility ab y li an pt cerrectness of i t to the co nform spec a t i h re o n in wit thi sr te o iva r rp fo g nData bus systems are necessary due to the high number of data which have to be transmitted in the vehicle. The electronic ignition lock undertakes the tasks of a networking gateway for data bus systems, the principle task of which is to form the interface between the various, independent data bus systems in the vehicle. The electronic ignition lock is the interface between the CAN drive data bus, the CAN convenience data bus and the CAN diagnostic data bus.Amongst others, the following, logical signals are transmitted on the CAN data bus systems by the EIL:● ●●Bus status signals for terminal 15 and terminal 50 Transmission of diagnostic messages between the VAS diagnostic tester and the individual control units Wake-up signals on opening with the radio remote control, on starting diagnosis and on insertion of the ignition keydo c um enVAS 5052ht rig py Co t.agen lksw Vo byAG.Prote cted by c o py rig h t . Co py iS370_07449Anti-theft systemElectronic steering column lock (ESL)Electronic steering column lock control unit J764The electronic steering column lock is actuated by the electronic ignition lock (EIL). Locking, unlocking and diagnosis are controlled via a serial data bus link with the EIL. The control unit is located on the steering column and is secured with "shear head bolts".Electronic steering column lock control unitS370_064Actuationurposes, in part or in wh ole, cial p is n mer m ot p o c erm or e t a itte v i r d pThe electronic steering column connected to the voltage supply via the fuse holder on the onboard supply control unit and to earth via the right-hand earth point in the A pillar.un len AG. Volkswagen AG do es n wage s k l ot g o yV ua b ran ed s i tee r o h t lockau control unit is The actuation signals fororunlocking ac ssand locking are transmitted by the EIL via a serial data cable in the form of encrypted data to the electronic steering column lock control unit.ility ab y li an pt ceElectronic steering column lock control unitrrectne s s o f i t to the co n form spec atio h re n wit i n thi sd o c um enOnboard supply control unitr fo nght rig py Co t.CAN convenience data busSerial data bus cable Electronic ignition lock50agen lksw Vo byAG.Prote cted byc o p yri gh t . C op yiFinal control for steering column lock S370_075FunctionAG. Volkswagen AG d agen oes ksw notreaches position I, the electronic l o If the authorised ignition key is inserted into Before the key gu y V the b ara d e nte supply is interrupted in the is r electronic ignition lock, the encrypted data are steering lock's voltage o eo h ut ra a transmitted to the electronic steering column lock via electronic ignition lock. c s sility ab y li an pt cepe rm itte dthe data cable.un lees, in part or in w l purpos hole ercia , is n m ot comIf the data are recognised to be correct, the electric motor is activated; it draws the locking bar out of the locking ring on the steering spindle. A terminal switch reports the released position to the electronics. The release signal is only sent to the electronic ignition lock when all data are recognised as correct. The key can now be turned to position I, II or III (position I without detent).This interruption is withdrawn when the ignition key is turned to position 0 again. When removing the ignition key in position 0, a signal is sent to the electronic steering lock. The electric motor moves the locking bar into the locking position, in which it prevents the the locking ring from rotating.rrectness of i t to the co nform spec a t i h re o n in wit thi sr te o iva r rp fo g ndo c um enTerminal switchWorm gear driveLocking bar Steering tubeht rig py Co t.agen lksw Vo byAG.Prote cted by c o py rig h t . Co py iElectric motorS370_06351Anti-theft systemes, in part or in w l purpos hole ercia , is n m ot compe rm itte dAnti-theft alarm systemDescriptionThe anti-theft alarm system is available as an option. Its functions are distributed amongst several control units. The master function is undertaken by the roof electronics control unit J528; it is linked to all of the other involved control units via the CAN data bus.un leAG. Volkswagen AG d agen oes ksw not l o V gu y b ara d nte ise r o eo h t u ra a c s sility ab y li an pt cerrectness of i t to the co nform spec a t i h re o n in wit thi sr te o iva r rp fo g ndo c um enInstallation locationAG.Prote cted byThe roof electronics control unit is located in the moulded headlining near to the interior mirror.VariantsThe anti-theft alarm system is available in the following variants:● ●●Electronic immobilizer, with anti-theft alarm system Anti-theft alarm system, interior monitor and towing sensor Anti-theft alarm system, interior monitor, back-up horn (alarm horn) and towing sensor52ht rig py Co t.agen lksw Vo byc o p yri gh t. C op yiS370_057FunctionThe ATA monitors the doors via the door contact switches; the engine compartment is additionally secured via the bonnet contact switch. The signal from the - Driver door contact switch F2 is read in by the driver door control unit J386, - Bonnet contact switch by the control unit in dash panel insert J285.Activation of