2007 PORSCHE CAYMAN brake sensor

ABSBrakeSystem
(AntilockBrakeSystem)
TheABSsystemrepresentsamajorcontributiontotheenhancementofactivesafetyinyourvehicle.Thissystempreventsthewheelsfromlockinginapanicstoponalmostallroadsurfaces.
WiththeABSsysteminyourvehicle,the
followingareasareenhanced:
Steering,vehicleremainssteerableunderallbrakingforceswhenABSisengaged.
Gooddirectionalcontrol,noswervingcausedbylockingofwheelsunderbrakingconditions.
Shorterstoppingdistance,stoppingdistancesareusuallyreducedbecausecontrolledbrakingismaximized.
Preventionofwheellockup,nobrake-inducedslidingandthusnolocalizedtirewearfromemergencybraking.
ThecrucialadvantageoftheABSsystemoveraconventionalbrakesystemisintheareaofmaintainingdirectionalcontrolandmaneuverabilityofthecarinemergencysituations.
Warning!
Theincreasedcontrolthatisprovidedshouldnotinduceyoutotakegreaterriskswithyoursafety.Thelimitsdictatedbythelawsofphysicscannotbeovercome,evenwithABS.Theriskofaccidentsduetoinappropriatespeedcannotbereduced,evenbytheABS.Thedriverbearstheresponsibilityforalldrivingmaneuvers.
Adaptyourdrivingstyletotheprevailingroadandweatherconditions.
Obeyalltrafficlaws.
Warning!
OthervehiclesnotequippedwiththeABSsystemmaynotbeabletomaintaincontrol,especiallyonwetorpoorroadsurfacesandthusmaybemorelikelytoimpactyoufrombehind.
Tominimizethatrisk,useyourABSsystemtoincreaseyourabilitytomaneuvertoavoiddangeroussituationsandnotmerelytotrytostopintheshortestdistancepossible.
OperationoftheABSsystem
Awheelspeedsensorismountedtoeachofthefourwheels.Ifwheellock-upofeitherofthefrontwheelsortherearwheelsissensedduringbraking,thebrakepressureisadjustedautomaticallyuntilthewheelnolongerslips.
Ifbrakingforcesapproachthewheellock-uppointforallwheels(panicbraking)theABSsystemwillintervenetoprovidearapidrythmicbraking.TheproperoperationofABSisperceivedbythedriverasapulsatingbrakepedalinconjunctionwithaudiblenoiseandperhapssomevibration.
Ifyouexperiencethesesensationswhiledrivingoraroadsurfacewithquestionabletraction,reducevehiclespeedappropriatefortheprevailingroadconditions.
Iffullbrakingshouldbenecessary,pressthebrakepedalallthewaydownthroughouttheentirebrakingprocedure,regardlessofthepulsatingpedal.Donoteaseuponpressureappliedtothepedal.
ThefunctionalreadinessofallthemainelectricalcomponentsoftheABSischeckedbyanelectronicmonitoringsystembothbeforeandwhileyoudrive.
WarninglightUSA
WarninglightCanada
WhentheignitionisswitchedontheABSwarninglightwilllightupwhilethesystemiselectronically
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interrogatedandgoesoutwhentheengineisstartedifthecheckisnotyetcomplete.IftheABSwarninglampfailstogoout,thisindicatesthatABShasbeendeactivatedduetoafault.Ifthewarninglightsintheinstrumentpanelandon-boardcomputerlightupwhileyouaredriving,thisindicatesthatafaulthasoccurred.Inbothcases,normalbraking,asinvehicleswithoutABS,isstillretained.
TheABSsystemshould,however,beexaminedatanauthorizedPorschedealerimmediatelytopreventtheoccurrenceoffurtherfaults.
IftheABSsystembecomesinoperative,takeyourvehicletoyourauthorizedPorschedealerimmediately.
Warning!
Riskofanaccident,resultinginseriouspersonalinjuryordeath.ThecontrolunitoftheABSbrakesystemissetforstandardtiresize.Ifnon-standardtiresareinstalled,thecontrolunitmaymisinterpretthespeedofthevehicle,becauseofthevariantdataitreceivesfromthesensorsontheaxles.
UseonlytiremakesandtypestestedbyPorsche.
70Controls,Instruments

PorscheStabilityManagement
(PSM)
GeneralinformationregardingPSM
PSMisanactivecontrolsystemforstabilizationofthevehicleduringextremedrivingmaneuvers.
Warning!
Riskofanaccident,resultinginseriouspersonalinjuryordeath.Theincreasedcontrolthatisprovidedshouldnotinduceyoutotakegreaterriskswithyoursafety.Thelimitsdictatedbythelawsofphysicscannotbeovercome,evenwithPSM.Theriskofaccidentsduetoinappropriatespeedcannotbereduced,evenbyPSM.Thedriverbearstheresponsibilityforalldrivingmaneuvers.
Adaptyourdrivingstyletotheprevailingroadandweatherconditions.
Obeyalltrafficlaws.
AdvantagesofPSM
–Superiortractionandlane-holdingabilityinalldrivingsituations-evenonroadsurfaceswithvaryingfriction.
–Thesystemcompensatesforundesiredvehi-clereactions(Ferrariaeffect)whenthedriverreleasestheacceleratorpedalorbrakeson
bends.Thiscompensationfunctionsuptothemaximumlateralacceleration.
–PSMactivelystabilizesthevehicleduringdynamicdrivingmaneuvers(e.g.rapidsteeringmovements,duringlanechangesoronalternatingcurves).
–Improvedbrakingstabilityincurvesandondifferentorvaryingroadsurfaces.
Readinessforoperation
PSMisswitchedonautomaticallyeverytimeyoustarttheengine.
Function
Sensorsatthewheels,brakes,steeringsystemandenginecontinuouslymeasure:
–Speed
–Directionoftravel(steeringangle)
–Lateralacceleration
–Rateofturnabouttheverticalaxis
PSMusesthesevaluestodeterminethedirectionoftraveldesiredbythedriver.PSMintervenesandcorrectsthecourseiftheactualdirectionofmotiondeviatesfromthedesiredcourse(steering-wheelposition):Itbrakesindividualwheelsasneeded.Inaddition,theenginepowermaybemanipulatedinordertostabilizethevehicle.
TheeventsbelowinformthedriverofPSMcontroloperationsandwarnhimtoadapther/hisdrivingstyletotheroadconditions:
–Themulti-functionalinformationlightontheinstrumentpanelflashes.
–Hydraulicnoisescanbeheard.
–Thevehicledeceleratesandsteering-wheelforcesarealteredasthePSMcontrolsthebrakes.
–Reducedenginepower.
–Thebrakepedalpulsatesanditspositionischangedduringbraking.Inordertoachievefullvehicledeceleration,footpressuremustbeincreasedafterbeginningofthebrakepedalpulsing.
ExamplesofPSMcontroloperations
–Ifthefrontwheelsofthevehicledriftonabend,therearwheelontheinsideofthebendisbrakedandtheenginepowerisreducedifnecessary.
–Iftherearofthevehicleswingsoutonabend,thefrontwheelontheoutsideofthebendisbraked.
Controls,Instruments73

ParkingAids
ParkingAssistant(ParkAssistant)
Functionoftheparkingassistant
Whenthedriverbacksup,theparkingassistantsystemindicatesthedistancebetweenthecarandalargeobstaclebehindit,bymeansofsignaltones.
Danger!
Riskofseriouspersonalinjuryordeath.ParkAssistantcannotdetectsmallobjectssuchaschildrenandpets.Despiteuseoftheparkingassistantsystem,thedriverisstillresponsiblefortakingduecareandassessingobstacleswhenbackingup.
Makesurethatnopersons,especiallysmallchildren,animalsorobstaclesarewithinthemaneuveringarea.
Theparkingassistantsystemisactivatedautomati-callywhenreversegearisselectedandtheignitionison.
Note
Beawarethattheparkingassistantsystemisnotswitchedonifthecarrollsbackwardwithoutreversegearbeingengaged.
Ultrasoundsensors
Sensors
Fourultrasoundsensorsintherearbumpermeasurethedistancetotheclosestobstacle.
–Rangemiddlesensorsaround60in./150cm
–Rangeoutersensorsaround24in./60cm
Obstaclescannotbedetectedinthe“blind”sensorarea(e.g.neartheground).
Note
Thesensorsmustalwaysbekeptfreeofdust,iceandsnowinordertoensurethattheyarefullyfunctional.
Caution!
Toavoiddamagingthesensors:
Maintainsufficientdistancewhencleaningwithsteam-jetunits.
Signaltones/function
Whenreversegearisselected,theparkingassistantconfirmsthatitisswitchedonbyissuingashortsignaltone.Adetectedobstacleissignalledbyanintermittenttone.Theintervalsdecreaseastheobstacleisapproached.Acontinuoustonesoundswhenthedistancebecomeslessthanonefoot.Thiscontinuoustonecanstopiftheobstacleisapproachedcloserthanonefoot.Theradiovolumeshouldnotbesoloudastodrownoutthesignaltones.
Limitsofultrasonicmeasurement
Theparkingassistantsystemcannotdetect:
–sound-absorbingobstacles(e.g.winteroperation,powdersnow),
–sound-reflectingobstacles(e.g.glasssurfaces,flatpaintedsurfaces)
–andverythinobstacles.
Otherultrasoundsources(e.g.pneumaticbrakesofothervehicles,jackhammers)caninterferewithdetectionofobstacles.
Controls,Instruments79

StartingandStoppingEngine
StartingProcedures
Pleaseobservethechapter”IMMOBILIZER”onpage22.
Pleaseobservethechapter”EMISSIONCONTROLSYSTEM”onpage220.
Warning!
Seriouspersonalinjuryordeathmayresultifyouareinvolvedinacollisionwithouthavingfastenedthesafetybelts.
Fastensafetybeltsbeforedrivingaway.
Beforestartingtheengine
Applythefootbrake.
Manualtransmission:Movethegearshiftleverintoneutral.Theclutchpedalmustbedepressedfullybeforethestarterwillengage.
Tiptronic:MovetheselectorlevertoPorN.
Temperaturesensorsontheengineautomaticallyprovidethecorrectfuel/airmixturerequiredforstarting.Therefore,itisnotnecessarytodepresstheacceleratorpedalwhilestartingacoldorawarmengine.
Startingtheengine
Turnignitionkeytoignitionlockposition2.
Assoonastheenginestarts,releasetheignitionkey.
Thefirstoperationofthestarterisendedautomat-icallywhentheenginestarts.Iftheenginedoesnotstart,subsequentstarteroperationswillnotbeendedautomatically.
Iftheenginefailstostartafter10or15secondsofcranking:
Waitabout10secondsbeforeengagingthestarteragain.
Whenstartingtheengine,bereadytodriveimmediately.Drivevehicleatmoderatespeedsandavoidenginespeedsabove4200rpmduringthefirst5minutes.
Donotlettheengineidletowarmup.
Danger!
Engineexhaustfumeshavemanycompo-nentswhichyoucansmell.Theyalsocontaincarbonmonoxide(CO),whichisacolorlessandodorlessgas.Carbonmonoxidecancauseunconsciousnessandevendeathifinhaled.
Neverstartorlettheengineruninanenclosed,unventilatedarea.Itisnotrec-ommendedtositinyourcarforprolongedperiodswiththeengineonandthecarnotmoving.
Danger!
Anunattendedvehiclewitharunningengineispotentiallyhazardous.Ifwarninglightsshouldcomeontoindicateimproperopera-tion,theywouldgounnoticed.
Neverleavetheengineidlingunattended.
Danger!
Dangerofre.
Donotparkoroperatethevehicleinareaswherethehotexhaustsystemmaycomeincontactwithdrygrass,brush,fuelspillorotherflammablematerial.
86Controls,Instruments

InstrumentPanelUSAModels
Overview
AlsorefertothecorrespondingchapterintheOwner’sManual.
1.Speedometerwithanaloguedisplay
2.Tirepressurewarninglight
3.Turnsignalindicatorlightleft
4.Tachometer
5.Highbeamindicatorlight
6.Turnsignalindicatorlightright
7.ABSwarninglight
8.CoolingsystemTemperaturegauge,warninglight
9.FuelLevelgauge,warninglight
10.Adjustingbuttonforinstrumentilluminationandtripcounter
11.Odometeranddailytripmileagedisplay
12.Automaticspeedcontrolindicatorlight
13.Lightsensorforinstrumentillumination
14.Airbagwarninglight
15.Emissioncontrolwarninglight(CheckEngine)
16.Centralwarninglight
17.On-boardcomputerdisplay
18.PorscheStabilityManagement,MultifunctionalPSMlight
19.Brakewarninglight
20.Safetybeltwarninglight
21.Tiptronicindicator
22.Clockandoutsidetemperaturedisplay
23.Adjustmentbuttonforclock
Whentheignitionisswitchedon,thewarninglightslightupforalampcheck.
Note
WarningsthathavebeengivenarestoredintheappropriatecontrolunitmemoryandcanbereadoutatanauthorizedPorschedealer.
Thisinformationcanhelptowarnyouaboutsituationswhichmaybehazardoustoyouoryourcar.
Note
WarningsthathavebeengivenarestoredintheappropriatecontrolunitmemoryandcanbereadoutatanauthorizedPorschedealer.
Thisinformationcanhelptowarnyouaboutsituationswhichmaybehazardoustoyouoryourcar.
88Controls,Instruments

InstrumentPanelCanadaModels
Overview
AlsorefertothecorrespondingchapterintheOwner’sManual.
1.Speedometerwithanaloguedisplay
2.Tirepressurewarninglight
3.Turnsignalindicatorlightleft
4.Tachometer
5.Highbeamindicatorlight
6.Turnsignalindicatorlightright
7.ABSwarninglight
8.CoolingsystemTemperaturegauge,warninglight
9.FuelLevelgauge,warninglight
10.Adjustingbuttonforinstrumentilluminationandtripcounter
11.Odometeranddailytripmileagedisplay
12.Automaticspeedcontrolindicatorlight
13.Lightsensorforinstrumentillumination
14.Airbagwarninglight
15.Emissioncontrolwarninglight(CheckEngine)
16.Centralwarninglight
17.On-boardcomputerdisplay
18.PorscheStabilityManagement,MultifunctionalPSMlight
19.Brakewarninglight
20.Safetybeltwarninglight
21.Tiptronicindicator
22.Clockandoutsidetemperaturedisplay
23.Adjustmentbuttonforclock
Whentheignitionisswitchedon,thewarninglightslightupforalampcheck.
Note
WarningsthathavebeengivenarestoredintheappropriatecontrolunitmemoryandcanbereadoutatanauthorizedPorschedealer.
Thisinformationcanhelptowarnyouaboutsituationswhichmaybehazardoustoyouoryourcar.
Note
WarningsthathavebeengivenarestoredintheappropriatecontrolunitmemoryandcanbereadoutatanauthorizedPorschedealer.
Thisinformationcanhelptowarnyouaboutsituationswhichmaybehazardoustoyouoryourcar.
90Controls,Instruments

InstrumentpanelOn-boardcomputerTextdisplayonon-boardcomputerMeaning/measure
ParkinglightonLeft/rightparkinglighton.
Checkleft/rightdippedbeam(lowbeam)alsoappliesto:frontsidelights,directionindicator,highbeam,foglights,sideindicatorlight,brakelight,taillight,rearfoglight,reversinglight,raisedbrakelight,sidemarker
Thereportedlightisfaulty.Checkbulb.HavethefaultremediedatanauthorizedPorschedealer.
DaytimedrivinglightsoffDaytimedrivinglightsswitchoffwhentheengineisshutoff.Switchonlightsifnecessary.
HeadlightbeamadjustmentfaultyHavethefaultremediedatanauthorizedPorschedealer.
FrontlidnotclosedCloseluggagecompartmentlidproperly.
RearlidnotclosedCloseenginecompartmentlidproperly.
RainsensorfaultyHavethefaultremediedatanauthorizedPorschedealer.
Refillwasherfluid
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