Navistar MaxxForce DT User manual

DIAGNOSTICMANUAL0000003081 AftertreatmentSymptom-BasedDiagnosticandInspectionManual-MaxxForce®DT,9and10(EPA10),MaxxForce®11,13and15(EPA10)Revision5 EPA10-US,CanadaOctober2014
DIAGNOSTICMANUAL
AftertreatmentSymptom-BasedDiagnosticandInspectionManual
MaxxForce®DT ,9and10(EPA10)
MaxxForce®11,13and15(EPA10)
Navistar,Inc.
2701NavistarDrive,Lisle,IL60532USA
©2014Navistar,Inc.Allrightsreserved.Allmarksaretrademarksoftheirrespectiveowners.
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TABLEOFCONTENTS
TABLEOFCONTENTS
1.FOREWORD........................................................................................................1
2.SAFETYINFORMATION..........................................................................................2
3.MAXXFORCE®DT,9AND10AFTERTREATMENTSYSTEMDIAGNOSTICS............................5
3.1.STARTDIAGNOSTICSHERE:ENGINEANDAFTERTREATMENTSYSTEM
OPERATIONALCHECKS.................................................................................5
3.2.SYMPTOM1(MEDIUMDUTY):FREQUENTPARKEDREGENSWITHNOACTIVE
FAULTCODES(MORETHANONEPARKEDREGENPERDAY)...................................8
3.3.SYMPTOM2(MEDIUMDUTY):ENGINENOSTART/STARTSANDSTALLS...................17
3.4.SYMPTOM3(MEDIUMDUTY):SPN3719ORSPN3936ACTIVEONLYOR
FREQUENTREGENS(MORETHANONEPARKEDREGENPERDAY).........................24
3.5.SYMPTOM4(MEDIUMDUTY):SPN3719ORSPN3936ANDOTHERACTIVEFAULT
CODES.....................................................................................................34
3.6.SYMPTOM5(MEDIUMDUTY):BLACKSMOKE....................................................44
4.MAXXFORCE®DT,9AND10SERVICEMAXX™SNAPSHOTS...........................................51
4.1.GRAPH1:AIRMANAGEMENTSYSTEMTEST(GOOD)...........................................51
4.2.GRAPH2:AIRMANAGEMENTSYSTEMTEST(BAD)..............................................53
4.3.GRAPH3:0TO60MPHTEST(ICPDESIREDANDICP)..........................................54
4.4.GRAPH4:0TO60MPHTEST(ENGINESPEED,ENGINELOAD,IMP ,EBP ,ANDAPP1)....55
4.5.GRAPH5:NORMALEXHAUSTGASTEMPERATURES(EFFICIENTDOCAND
UNRESTRICTEDAFI)...................................................................................57
4.6.GRAPH6:ERRATICEXHAUSTGASTEMPERATURES...........................................59
4.7.GRAPH7:LOWEXHAUSTGASTEMPERATURES(RESTRICTEDAFI).........................60
4.8.SOOTLOADLEVELVS.EXHAUSTGASTARGETTEMPERATURECHART...................62
5.AFTERTREATMENTSYSTEMOPERATION.................................................................63
5.1.MAXXFORCE®DT,9AND10...........................................................................63
6.COMPONENTDESCRIPTIONS(THEORYOFOPERATION)..............................................66
6.1.MAXXFORCE®DT,9AND10...........................................................................66
7.AFTERTREATMENTSYSTEMFAULTCODES..............................................................75
7.1.MAXXFORCE®DT,9AND10(EPA10)................................................................75
8.AFTERTREATMENTSYSTEMEVENTCHART..............................................................78
8.1.MAXXFORCE®DT,9AND10...........................................................................78
9.MAXXFORCE®11,13AND15AFTERTREATMENTSYSTEMDIAGNOSTICS..........................79
9.1.STARTDIAGNOSTICSHERE:ENGINEANDAFTERTREATMENTSYSTEM
OPERATIONALCHECKS................................................................................79
9.2.SYMPTOM1(HEAVYDUTY):FREQUENTPARKEDREGENSWITHNOACTIVE
FAULTCODES(MORETHANONEPARKEDREGENPERDAY).................................83
9.3.SYMPTOM2(HEAVYDUTY):ENGINENOSTART/STARTSANDSTALLS.....................91
9.4.SYMPTOM3(HEAVYDUTY):SPN3719ACTIVEONLYORFREQUENTREGENS
(MORETHANONEPARKEDREGENPERDAY)....................................................96
9.5.SYMPTOM4(HEAVYDUTY):SPN3719ANDOTHERACTIVEFAULTCODES..............104
9.6.SYMPTOM5(HEAVYDUTY):BLACKSMOKE.....................................................113
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TABLEOFCONTENTS
TABLEOFCONTENTS(CONT.)
10.MAXXFORCE®11,13AND15SERVICEMAXX™SNAPSHOTS.........................................120
10.1.GRAPH1:AIRMANAGEMENTSYSTEMTEST(GOOD).........................................120
10.2.GRAPH2:AIRMANAGEMENTSYSTEMTEST(BAD)............................................122
10.3.GRAPH3:LUGDOWNTEST(ENGINESPEED,FRP ,ANDFRPD).............................124
10.4.GRAPH4:LUGDOWNTEST(ENGINESPEEDANDTC1TOP).................................126
10.5.GRAPH5:LUGDOWNTEST(ENGINESPEED,APP1,VEHICLESPEED,ANDIMP)........127
10.6.GRAPH6:NORMALEXHAUSTGASTEMPERATURES(EFFICIENTDOCAND
UNRESTRICTEDAFI)..................................................................................129
10.7.GRAPH7:INVERTEDEXHAUSTGASTEMPERATURES(INEFFICIENTDOC)...............131
10.8.GRAPH8:LOWEXHAUSTGASTEMPERATURES(RESTRICTEDAFI).......................133
11.AFTERTREATMENTSYSTEMOPERATION................................................................135
11.1.MAXXFORCE®11,13AND15........................................................................135
12.COMPONENTDESCRIPTIONS(THEORYOFOPERATION).............................................138
12.1.MAXXFORCE®11AND13.............................................................................138
13.AFTERTREATMENTSYSTEMFAULTCODES.............................................................147
13.1.MAXXFORCE®11,13AND15.........................................................................147
14.AFTERTREATMENTSYSTEMEVENTCHART............................................................151
14.1.MAXXFORCE®11,13AND15.........................................................................151
15.REGENINHIBITORSANDENTRYCONDITIONS..........................................................152
15.1.REGENINHIBITORS...................................................................................152
15.2.ENTRYCONDITIONS..................................................................................156
16.DPFANDDOCREUSEGUIDELINES.......................................................................159
16.1.MAXXFORCE®DT,9,AND10;MAXXFORCE®11,13AND15....................................159
16.1.1.DieselParticulateFilter(DPF)Inlet-Clean...............................................160
16.1.2.DieselParticulateFilter(DPF)Inlet-Dirty,butReusable................................161
16.1.3.DieselParticulateFilter(DPF)Inlet-FacePlugged......................................162
16.1.4.DieselParticulateFilter(DPF)-Melted....................................................163
16.1.5.DieselParticulateFilter(DPF)-CrackedbutReusable..................................164
16.1.6.DieselParticulateFilter(DPF)Inlet-AshonFace........................................165
16.1.7.DieselParticulateFilter(DPF)-ExcessiveBrickShift....................................166
16.1.8.DieselParticulateFilter(DPF)-ModerateBrickShift....................................167
16.1.9.DieselOxidationCatalyst(DOC)Outlet-DirtybutReusable............................168
16.1.10.DieselOxidationCatalyst(DOC)-Separation............................................169
16.1.11.DieselOxidationCatalyst(DOC)-Melted.................................................170
16.1.12.DieselOxidationCatalyst(DOC)orDieselParticulateFilter(DPF)-Damaged
SensorPortThreads.......................................................................171
17.ABBREVIATIONSANDACRONYMS........................................................................172
18.TERMINOLOGY.................................................................................................181
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DIAGNOSTICMANUAL
FOREWORD
Navistar,Inc.iscommittedtocontinuousresearchanddevelopmenttoimproveproductsandintroduce
technologicaladvances.Procedures,specications,andpartsdenedinpublishedtechnicalserviceliterature
maybealtered.
Technicalserviceliteratureisrevisedperiodically.Ifatechnicalpublicationisordered,thelatestrevision
willbesupplied.
NOTE–Toordertechnicalserviceliterature,contactyourInternationaldealer.
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DIAGNOSTICMANUAL
SAFETYINFORMATION
Thismanualprovidesgeneralandspecicmaintenanceproceduresessentialforreliableengineoperation
andyoursafety.Sincemanyvariationsinprocedures,tools,andservicepartsareinvolved,adviceforall
possiblesafetyconditionsandhazardscannotbestated.
Readsafetyinstructionsbeforedoinganyserviceandtestproceduresfortheengineorvehicle.Seerelated
applicationmanualsformoreinformation.
DisregardforSafetyInstructions,Warnings,Cautions,andNotesinthismanualcanleadtoinjury,deathor
damagetotheengineorvehicle.
SafetyTerminology
Threetermsareusedtostressyoursafetyandsafeoperationoftheengine:Warning,Caution,andNote.
Warning:Awarningdescribesactionsnecessarytopreventoreliminateconditions,hazards,andunsafe
practicesthatcancausepersonalinjuryordeath.
Caution:Acautiondescribesactionsnecessarytopreventoreliminateconditionsthatcancausedamageto
theengineorvehicle.
Note:Anotedescribesactionsnecessaryforcorrect,efcientengineorvehicleoperation.
SafetyInstructions
WorkArea
•Keepworkareaclean,dry,andorganized.
•Keeptoolsandpartsofftheoor.
•Makesuretheworkareaisventilatedandwelllit.
•Makesurearstaidkitisavailable.
SafetyEquipment
•Usecorrectliftingdevices.
•Usesafetyblocksandstands.
ProtectiveMeasures
•Wearprotectivesafetyglassesandshoes.
•Wearcorrecthearingprotection.
•Wearcottonworkclothing.
•Wearsleevedheatprotectivegloves.
•Donotwearrings,watchesorotherjewelry.
•Restrainlonghair.
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DIAGNOSTICMANUAL
Vehicle
•Makesurethevehicleisinneutral,theparkingbrakeisset,andthewheelsareblockedbeforeservicing
engineorvehicle.
•Cleartheareabeforestartingtheengine.
Engine
•Theengineandvehicleshouldbeoperatedorservicedonlybyqualiedindividuals.
•Providenecessaryventilationwhenoperatingengineinaclosedarea.
•Keepcombustiblematerialawayfromengineexhaustsystemandexhaustmanifolds.
•Installallshields,guards,andaccesscoversbeforeoperatingengineorvehicle.
•Donotrunenginewithunprotectedairinletsorexhaustopenings.Ifunavoidableforservicereasons,put
protectivescreensoverallopeningsbeforeservicingengine.
•Shutengineoffandrelieveallpressureinthesystembeforeremovingpanels,housingcovers,andcaps.
•Ifanengine,orvehicle,isnotsafetooperate,tagtheignitionkey.
FirePrevention
•Makesurechargedreextinguishersareintheworkarea.
NOTE–Checktheclassicationofeachreextinguishertoensurethatthefollowingretypescanbe
extinguished.
1.TypeA-Wood,paper,textiles,andrubbish
2.TypeB-Flammableliquids
3.TypeC-Electricalequipment
Batteries
•Alwaysdisconnectthemainnegativebatterycablerst.
•Alwaysconnectthemainnegativebatterycablelast.
•Avoidleaningoverbatteries.
•Protectyoureyes.
•Donotexposebatteriestoopenamesorsparks.
•Donotsmokeinworkplace.
CompressedAir
•UseanOSHAapprovedblowgunratedat30psi(207kPa).
•Limitshopairpressureto30psi(207kPa).
•Wearsafetyglassesorgoggles.
•Wearhearingprotection.
•Useshieldingtoprotectothersintheworkarea.
•Donotdirectcompressedairatfaceorbody.
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DIAGNOSTICMANUAL
Tools
•Makesurealltoolsareingoodcondition.
•Makesureallstandardelectricaltoolsaregrounded.
•Checkforfrayedpowercordsbeforeusingpowertools.
FluidsUnderPressure
•Useextremecautionwhenworkingonsystemsunderpressure.
•Followapprovedproceduresonly.
Fuel
•Donotoverllthefueltank.Overllcreatesarehazard.
•Donotsmokeintheworkarea.
•Donotrefuelthetankwhentheengineisrunning.
RemovalofTools,Parts,andEquipment
•Reinstallallsafetyguards,shields,andcoversafterservicingtheengineorvehicle.
•Makesurealltools,parts,andserviceequipmentareremovedfromtheengineandvehicleafterall
workisdone.
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DIAGNOSTICMANUAL
MAXXFORCE®DT,9AND10AFTERTREATMENTSYSTEMDIAGNOSTICS
3.1.STARTDIAGNOSTICSHERE:ENGINEANDAFTERTREATMENTSYSTEM
OPERATIONALCHECKS
Overview
Aproperlyoperatingaftertreatmentsystemrequireslittlemanualinterventionfromtheoperator.Illuminated
warninglampsmayindicateadrivingorextendedidleoperationthatmaynotallowsuccessfulregeneration
oftheaftertreatmentsystem.Theseilluminatedwarninglampsmayalsoindicateanenginemechanicalor
performanceconcern.
ToolsRequired
•ElectronicServiceTool(EST)withServiceMaxx™software
•Interfacecable(RP1210BcompliantsupportingJ1939andJ1708)
NOTE–AfrequentregenconcernmaynotberepairedbyonlyperforminganOnboardFilterCleanliness
Test(OBFCT).Performallstepsinthefollowingdiagnosticprocedureinordertoidentifyrootcause
failure.
NOTE–Repairallactivefaultcode(s)otherthanSPN3719(DPFSootLoad)beforebeginningEngine
andAftertreatmentSystemOperationalChecks.
OperationalChecks–StartAftertreatmentDiagnosticsHere
StepActionDecision
1Verifythefollowingenginesystemsareinsatisfactorycondition:
•EngineOil:Parkvehicleonlevelgroundandcheckoillevel.
•EngineCoolantLevel:Checkcoolantlevelthatisindicatedon
deaerationtank.
•IntakeAir:Inspectairltergauge,locatedonairlterhousingor
dashboard.
•ElectricalSystem:Inspectbatteriesandelectricalsystem(engineand
vehicle)forpoororlooseconnections,corrodedterminals,orbroken
anddamagedwires.
•ExhaustSystem:CheckAftertreatmentandexhaustsystemfor
damage,excessivecorrosion,orleaks.
•Fuellevel:Checkinstrumentpanelfuelgauge,lookintofueltanksto
verifyfuellevel,andmakesurefuellevelsareequalinbothtanks.
•FuelqualityObtainafuelsample,andcheckforwater,waxing,icing,
sediment,gasoline,DieselExhaustFluid(DEF),orkerosene.
•Fuellineroutingandcondition:WithengineOFF,visuallyinspect
theconditionandroutingoffuellines.
Arealloftheaboveenginesystemsoperatingasdesigned?
Yes:Gotostep2
No:Repair
appropriate
enginesystem
andgotostep2.
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DIAGNOSTICMANUAL
StepActionDecision
2DetermineifengineorAftertreatmentsystemwarninglampsareilluminated.
Key-OnEngine-Off(KOEO),checkInstrumentPanel(IP)forthefollowing
warninglamps:
•AmberWarningLamp(AWL)
•RedStopLamp(RSL)
•MalfunctionIndicatorLamp(MIL)
•DieselParticulateFilter(DPF)Lamp
Areanyoftheabovewarninglampsilluminated?
Yes:Gotostep4
No:Gotostep3
StepActionDecision
3DieselParticulateFilter(DPF)SnapAccelerationT est(QuickT est).This
procedurecheckstheDPFforcracksorinternaldamagewithoutremoving
theDPFfromthevehicleandisusedtotestbasicfunctionalityofthediesel
particulatelter.ThisistobedonepriortoremovingtheDPF .
1.Thetransmissionmustbeinneutralandtheparkingbrake
applied.
2.Startandidletheengine.
3.Rapidlysnaptheacceleratorpedalfromidletofullthrottle.This
canbeperformedmultipletimes.
4.Duringtheengineaccelerations,visuallycheckforaheavy
blacksmokeexitingtheexhaustpipe.
Isblacksmokevisible?
Yes:Goto
symptom5
(MediumDuty):
Blacksmokepage
44.
No:Goto
Symptom1
(MediumDuty):
FrequentParked
RegenswithNo
ActiveCodes
(Morethanone
parkedregenper
day)page8.
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DIAGNOSTICMANUAL
StepActionDecision
4Checkforanenginenostart.TurnignitionswitchtoONpositionandcrank
engineforamaximumof20seconds.Ifenginedoesnotstart,wait2to3
minutesandcrankengineagainforamaximumof20seconds.
Doestheenginestartandrun?
Yes:Gotostep5
No:Goto
symptom2
(MediumDuty):
EngineNoStart/
StartsandStalls
page17.
StepActionDecision
5UsingElectronicServiceTool(EST)withServiceMaxx™software,check
DiagnosticTroubleCode(DTC)listforSPN3719FMI0,15,and16(DPF
SootLoad).
IsSPN3719orSPN3936withFMI0,15,or16theonlyfaultcode(s)active?
Yes:Goto
Symptom3
(MediumDuty):
SPN3719or
SPN3936Active
OnlyorFrequent
Regenspage24.
No:Goto
Symptom4
(MediumDuty):
SPN3719or
SPN3936and
OtherActiveFault
Codespage34.
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DIAGNOSTICMANUAL
3.2.SYMPTOM1(MEDIUMDUTY):FREQUENTPARKEDREGENSWITHNOACTIVE
FAULTCODES(MORETHANONEPARKEDREGENPERDAY)
NOTE–Beforebeginningthefollowingstep-baseddiagnostics,performallvehicleoperationalchecks
page5.
NOTE–SPN3719FMI15maybeinactivewhenafrequentregenconcernispresent.
NOTE–SPN3936FMI8canbeactiveforthissymptom.
StepActionDecision
1CheckforafailedAirManagementSystem(AMS)actuator.
1.UsingElectronicServiceT ool(EST)withServiceMaxx™
software,gotoT ests>LoadTestSpecicSessionandverify
LoadTestSpecicSessionisunchecked.
2.GotoSessions>Performanceandselecttherecordsnapshot
iconfromthetoolbar.
3.GotoT ests>KOERT ests>AirManagementT est.
WhenAirManagementT estiscomplete,stoprecording.Usetheplayback
featureinServiceMaxx™,andgraphthefollowingsignalvalues:
SignalValues:
•MassAirFlow(MAF)MeanValue(MMV)
•IntakeManifoldPressure(IMP)
•ExhaustGasRecirculation(EGR)valveposition
DoessnapshotmatchGraph1orGraph2page51?
Graph1:Goto
step2A
Graph2:
Diagnoseand
repairfailed
actuator(See
Performance
Diagnostics
sectioninEngine
Diagnostic
Manual).After
repairsare
complete,retest
fororiginal
problem.
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DIAGNOSTICMANUAL
WARNING
Topreventpersonalinjuryordeath,donotexceedlocalspeedlimitlawsordrivetoofast
forconditionswhenperforming0to60MPHTest.
NOTE–IntakeManifoldPressure(IMP)canvarybasedonECMcalibrationandvehicleweight.Using
ElectronicServiceTool(EST)withServiceMaxx™software,monitorturbochargerwastegateoperation
toverifylowboost.
StepActionDecision
2ACheckforengineperformanceissues.Perform0to60MPHT estprocedure
below:
1.UsingEST,gotoSessions>Performance.
2.Findanopenstretchofroad,whereminimumspeedlimitis
50mphorhigher.
3.Pullovertothesideoftheroad.
4.Whendrivingconditionsaresafeandvehiclehasreached
normaloperatingtemperature,selecttherecordsnapshoticon
fromthetoolbar.
5.Pressacceleratorpedalfullytotheoor,andacceleratefrom0
mphtomaxallowedhighwayspeed.
After0to60MPHTestiscomplete,stoprecordingandsavesnapshot.
Gotostep2B
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DIAGNOSTICMANUAL
StepActionDecision
2BCheckforInjectionControlPressure(ICP)systemissue.UsingESTwith
ServiceMaxx™software,usetheplaybackfeatureandgraphthefollowing
signalvaluesfrom0to60MPHT est:
SignalValues:
•ICPdesired
•ICP
•InjectionPressureRegulator(IPR)valvecontrol%
ComparesnapshottoGraph3andassociatedGraphAnalysispage54.
IsICPsystemoperatingasperGraph3GraphAnalysis?
Yes:Gotostep
2C
No:Diagnose
andrepairICP
systemissue(See
HardStartandNo
StartDiagnostics
sectioninEngine
Diagnostic
Manual).After
repairsare
complete,retest
fororiginal
problem.
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DIAGNOSTICMANUAL
StepActionDecision
2CCheckforAirManagementSystem(AMS)issue.UsingESTwith
ServiceMaxx™software,usetheplaybackfeatureandgraphthefollowing
signalvaluesfrom0to60MPHT est:
SignalValues:
•EngineSpeed
•EngineLoad
•IntakeManifoldPressure(IMP)
•ExhaustBackPressure(EBP)
•AcceleratorPedalPosition1(APP1)
ComparesnapshottoGraph4andassociatedGraphAnalysispage55.
IsAMSoperatingasperGraph4GraphAnalysis?
Yes:Gotostep3
No:Diagnoseand
repairAMSissue
(SeePerformance
Diagnostics
sectioninEngine
Diagnostic
Manual).After
repairsare
complete,retest
fororiginal
problem.
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DIAGNOSTICMANUAL
StepActionDecision
3Verifyexhaustgastemperaturesarewithinspecication.
1.UsingElectronicServiceTool(EST)withServiceMaxx™
software,gotoSessions>Performanceandselecttherecord
snapshoticonfromthetoolbar.
2.GotoTests>KOERAftertreatmentT ests>OnboardFilter
CleanlinessT est.
WhenOBFCTiscomplete,stoprecording.Usetheplaybackfeatureand
graphthefollowingsignalvaluesfromOBFCT :
SignalValues:
•DieselOxidationCatalystInletT emperature(DOCIT)
•DieselParticulateFilterInletTemperature(DPFIT)
•DieselParticulateFilterOutletT emperature(DPFOT)
•DPFSootLoad
ComparesnapshottoGraph5,6,and7page57.
Whichgraphdoessnapshotmostcloselymatch?
Graph5:
Diagnostics
complete
Graph6:Goto
step4
Graph7:Goto
step7
StepActionDecision
4DetermineifDPForDOCiscontaminated.RemovetheDPFandDOC
(seeExhaustSystemServiceManual),andcheckforsignsoflubeoiland
coolantcontamination.
NOTE–Ablackstainingintheexhausttailpipecanoccuron
applicationsthatexperiencehighidletimes.Thisisnormalandthe
DPFshouldNOTbereplaced.
AretheDPForDOCcontaminated?
Yes:Remove
PDOC,andgoto
step5.
No:InstallDPF
andDOC,andgo
tostep7.
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DIAGNOSTICMANUAL
StepActionDecision
5DetermineifDPF ,DOC,andPDOCarereusableseetheDPFandDOC
reuseguidelinespage159.
BasedonDPFandDOCRe-UseGuidelines,aretheDPF,DOC,and
PDOCreusable?
Yes:Install
removed
aftertreatment
system
components,and
gotostep6.
No:Replace
failed
component(s).
Afterrepairsare
complete,goto
step6.
StepActionDecision
6Determinerootcauseofexhaustsystemcontamination.(SeeEngine
SymptomsDiagnosticssectioninEngineDiagnosticManual.)
Afterrepairsare
complete,goto
step7.
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DIAGNOSTICMANUAL
1.NewAftertreatmentFuelInjector
(AFI)gasket
2.EarlyproductionAFIgasket
Figure1AFIGasket
StepActionDecision
7
CAUTION
Donotremovethenozzleinjectorfromthedoser
housing.Spraypatterntestisnolongeravisualcheck
forAftertreatmentFuelInjector(AFI)replacement.
PerformAftertreatmentFuelInjector(AFI)visualinspection.RemoveAFI
(SeeEngineServiceManual)andcheckforthefollowing:
VisualChecks:
•CorrectAFIgasketisinstalled(Figure1)
•AFIandboreunrestrictedandfreeofcarbonbuildup
•AFItipfreeofcracksandotherdamage
DidAFIpassallvisualchecks?
Yes:InstallAFI,
andgotostep8.
No:Correctfailed
visualcheck(s).
Afterrepairsare
complete,install
AFIandgotostep
8.
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DIAGNOSTICMANUAL
StepActionDecision
8RunDSISystemDe-AerationProceduretwice,topurgetheDownStream
Injection(DSI)systemofair.UsingEST,gotoProcedures>KOER
AftertreatmentProcedures>DSISystemDe-Aeration.
Gotostep9
StepActionDecision
9UsingEST ,checkDiagnosticTroubleCode(DTC)listforanyfaultcode(s)
thatmayhavebecomeactiveduringOBFCT .
DoesDTClistcontainanyactivefaultcode(s)?
Yes:Repairactive
faultcode(s)
(SeeElectronic
ControlSystems
Diagnosticsin
EngineDiagnostic
Manual).After
repairsare
complete,goto
step10.
No:Gotostep10
StepActionDecision
10Verifyexhaustgastemperaturesarewithinspecication.
1.UsingElectronicServiceT ool(EST)withServiceMaxx™
software,gotoTests>KOERAftertreatmentT ests>Onboard
FilterCleanlinessT est(OBFCT).
2.GotoSessions>Performanceandselecttherecordsnapshot
iconfromthetoolbar.
WhenOBFCTiscomplete,stoprecording.Usetheplaybackfeatureand
graphthefollowingsignalvaluesfromOBFCT :
SignalValues:
•DieselOxidationCatalystInletT emperature(DOCIT)
•DieselParticulateFilterInletTemperature(DPFIT)
•DieselParticulateFilterOutletT emperature(DPFOT)
•DPFSootLoad
ComparesnapshottoGraph5and6page57.
Whichgraphdoessnapshotmostcloselymatch?
Graph5:Goto
step11
Graph6:Go
toPerformance
Diagnostics
sectioninEngine
Diagnostic
Manual.
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DIAGNOSTICMANUAL
StepActionDecision
11PerformStandardTesttoverifyallenginesystemsareoperatingas
designed.Verifyenginecoolanttemperatureisgreaterthan158°F(70°C).
UsingESTwithServiceMaxx™software,gotoTests>KOERTests>
StandardTest.
DoesStandardT estrunandpass?
Yes:Gotostep
12
No:Diagnose
andrepairactive
faultcode(s)
(seeElectronic
ControlSystem
Diagnostics
sectioninEngine
Diagnostic
Manual).
StepActionDecision
12PerformthefollowingMAFSensorCalibrationproceduretoaccommodate
forsystemrepairs:
1.Verifyenginecoolanttemperatureisgreaterthan180°F(82°C),
andlubeoiltemperatureisgreaterthan176°F(80°C).
2.UsingESTwithServiceMaxxsoftware,gotoTests>and
deselectLoadTestSpecicSession.
3.GotoSessions>Performanceandselecttherecordsnapshot
iconfromthetoolbar.
4.Gotoprocedures>KOERProcedures>MAFSensor
Calibration.
5.AfterMAFSensorCalibrationiscomplete,stoprecording.
6.TurntheignitionswitchtotheOFFpositionforaminimumof
30seconds.
7.Repeatsteps3through5tocompletesecondMAFSensor
Calibration.
DoesMAFSensorCalibrationprocedurerunandpass?
Yes:Diagnostics
complete
No:Goto
Performance
Diagnostics
sectioninEngine
Diagnostic
Manual.
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