Navistar MaxxForce 9 - Page 39

DIAGNOSTICMANUAL
Step
ActionDecision
4
UsingElectronicServiceTool(EST)withServiceMaxx™software,
ResetDPFsootload.SelectSessions>Programming>CDPF
ResetRequestsetvaluetoyes,thenselectProgramEngine.When
programmingcompletes,runengineatwideopenthrottle(WOT)for
10minutes.Ifahighsootloadexists,youwillseeitafter10minutes;
Ifthehighsootloadisfalse,theDPFsootloadwillberecalculated
toshowthetruesootload.
Whichfaultcodeforsootloadisactive?
SPN3719FMI16,gotoStep
5
SPN3719FMI15,gotoStep
6
SPN3719or3936FMI0,go
toStep8
Nocode,gotoStep11
Step
ActionDecision
5
DothreeOnboardFilterCleanlinessT ests(OBFCT)todecrease
sootloadofDieselParticulateFilter(DPF).UsingEST ,gotoTests>
KOERAftertreatmentT ests>OnboardFilterCleanlinessT est.After
OBFCTsarecomplete,checkDTClisttodetermineifSPN3719FMI
16droppedoneFMIleveltoSPN3719FMI15.
DidSPN3719FMI16droponeFMIleveltoSPN3719FMI15?
Yes:Gotostep6
No:Gotostep7
Step
ActionDecision
6
DothreeOnboardFilterCleanlinessT ests(OBFCT)toclearSPN
3719FMI15.UsingEST,gotoT ests>KOERAftertreatmentT ests>
OnboardFilterCleanlinessT est.AfterOBFCTsarecomplete,check
DTClisttodetermineifSPN3719FMI15isstillactive.
IsSPN3719FMI15stillactive?
Yes:Gotostep8
No:Gotostep7
35
https://www.truck-manuals.net/