Navistar ProStar+ - HD-OBD Overview; Self Diagnostics

Operation
SomeOptionalFeatures:
•EngineWarningSystem–Thissystemilluminatesthe
RedStopLampandactuatesabeeperwhenwarning
thresholdsforcoolanttemperature,enginecoolantlevel,
and/orlowengineoilpressureareexceeded.
•EngineShutdownSystem–Thissystemshutsdown
theengineafter30secondsofoperationbeyondcritical
thresholdvaluesforcoolanttemperatureand/oroil
pressure.
•ThrottleControlforPTOOperation.
•RoadSpeedLimiting/Governor–Programmable
maximumspeed.
•IdleShutdownTimer–Shutsdownengineafter5
minutesofidletime.
HD-OBDOverview
TheHD-OBDsystemusesmanyindividualpre-programmed
“monitors”toensurethevehicleismeetingemissionsstandards.
AnHD-OBDmonitorisastrategytoevaluatetheperformance
ofanemissionsrelatedsystemorcomponent.Allmonitors
aredesignedforexecutioninaprescribedfrequency;some
monitorsruncontinuously,whilesomerunaspecicratio
againstthenumberofdrivecycles.
Theoperatorwillbealertedtoemissionsorothersystem
problemswhentheMalfunctionIndicatorLamp(MIL)illuminates.
WhentheMILilluminates,bringthevehicleinforserviceat
thenextavailableopportunity.TheHD-OBDsystemdoesnot
changethewaythevehicleshouldbedriven,therecommended
drivingstyle,orthewayyouusethevehicle.
SelfDiagnostics
AllWarningLampsarelocatedontheinstrumentpanelgauge
cluster.WhentheignitionswitchisturnedON,theWarning
LampsareilluminatedandremainonwhiletheECMrunsnormal
start-uptests,thengoesOFF.Ifawarninglampstaysonor
comesonwhileoperatingthevehicle,itisanindicationthatthe
vehicleneedsservice.Whenthewarninglampisilluminated,
aDiagnosticTroubleCode(DTC)willbegenerated.Takethe
vehicletoaservicecenterassoonaspossibleassomeoptional
featuresand/orenginepowermaybelostwhiletheindicatoris
lit.
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