Navistar MaxxForce 9 Diagnostic Manual

DIAGNOSTICMANUAL
Step
ActionDecision
8
RunDownStreamInjection(DSI)SystemDe-Aeration
Proceduretwice,topurgetheDSIsystemofair.Using
ElectronicServiceTool(EST)withServiceMaxx™
software,gotoProcedures>KOERAftertreatment
Procedures>DSISystemDe-Aeration.
Gotostep9
Step
ActionDecision
9
UsingElectronicServiceTool(EST)withServiceMaxx™
software,checkDiagnosticTroubleCode(DTC)listfor
anyfaultcode(s)thatmayhavebecomeactiveduring
OBFCT.
DoesDTClistcontainanyactivefaultcode(s)?
Yes:Repairactivefaultcode(s)(See
ElectronicControlSystemsDiagnosticsin
EngineDiagnosticManual).Afterrepairs
arecomplete,gotostep10
No:Gotostep10
Step
ActionDecision
10
Verifyexhaustgastemperaturesarewithinspecication.
1.UsingElectronicServiceTool(EST)with
ServiceMaxx™software,gotoTests>
KOERAftertreatmentT ests>Onboard
FilterCleanlinessT est(OBFCT).
2.GotoSessions>Performanceandselect
therecordsnapshoticonfromthetoolbar.
WhenOBFCTiscomplete,stoprecording.Usethe
playbackfeatureandgraphthefollowingsignalvalues
fromOBFCT:
SignalValues
SignalValues:
•DieselOxidationCatalystInletTemperature
(DOCIT)
•DieselParticulateFilterInletT emperature(DPFIT)
•DieselParticulateFilterOutletT emperature
(DPFOT)
•DPFSootLoad
ComparesnapshottoGraphs6and8page129.
Whichgraphdoessnapshotmostcloselymatch?
Graph6:Repaircomplete
Graph8:GotoPerformanceDiagnostics
intheEngineServiceManual.After
repairsarecomplete,retestfororiginal
problem.
119
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Navistar MaxxForce 9 Specifications

General

Brand	Navistar
Model	MaxxForce 9
Category	Engine
Language	English