Navistar MaxxForce 9 Diagnostic Manual

DIAGNOSTICMANUAL
Step
ActionDecision
8
RunDownStreamInjection(DSI)SystemDe-Aeration
Proceduretwotimes,topurgetheDSIsystemofair.Usingthe
ElectronicServiceT ool(EST)withServiceMaxx™software,
gotoProcedures>KOERAftertreatmentProcedures>DSI
SystemDe-Aeration.
Gotostep9
Step
ActionDecision
9
UsingElectronicServiceT ool(EST)withServiceMaxx™
software,checkDiagnosticTroubleCode(DTC)listforanyfault
code(s)thatmayhavebecomeactiveduringOBFCT .
DoesDTClistcontainanyactivefaultcode(s)?
Yes:Diagnoseandrepairactive
faultcode(s)(SeeElectronicControl
SystemDiagnosticsinEngine
DiagnosticManual).Afterrepairs
arecomplete,gotostep10.
No:Gotostep10
Step
ActionDecision
10
Verifyexhaustgastemperaturesarewithinspecication.
1.UsingElectronicServiceT ool(EST)with
ServiceMaxx™software,gotoT ests>KOER
AftertreatmentT ests>OnboardFilterCleanliness
Test(OBFCT).
2.GotoSessions>Performanceandselectthe
recordsnapshoticonfromthetoolbar.
WhenOBFCTiscomplete,stoprecording.Usetheplayback
featureandgraphthefollowingsignalvaluesfromOBFCT :
•DieselOxidationCatalystInletTemperature(DOCIT)
•DieselParticulateFilterInletT emperature(DPFIT)
•DieselParticulateFilterOutletTemperature(DPFOT)
•DPFSootLoad
ComparesnapshottoGraph5and6page57.
Whichgraphdoessnapshotmostcloselymatch?
Graph5:Endofdiagnostics
Graph6:GotoPerformance
DiagnosticssectionintheEngine
DiagnosticsManual.
50
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Navistar MaxxForce 9 Specifications

General

Brand	Navistar
Model	MaxxForce 9
Category	Engine
Language	English