Navistar MaxxForce 9

DIAGNOSTICMANUAL
371916
DPFSootLoad–Moderate(level
2/3)
•Level2DPFRegenrequired
39360
DPFSootLoad–SevereDe-Rate
•Level3DPFplugged
393614DPF–Regendurationabovelimit•Engineunabletobuildenoughheatto
theDOC
•DOCfailure
•DSIfailuretoinjectfuelintotheexhaust
•DPFfailure
40773
AFTFP2signalOutofRangeHIGH•AFTFP2signalcircuitOPENorshortto
PWR
•FailedAFTFIS
47652
DOCITsignaldoesnotagreewith
otherexhaustsensors
•DOCITbiasedsensororcircuit
47653
DOCITsignalOutofRangeHIGH•DOCITsignalcircuitOPENorshortto
PWR
•SIGGNDcircuitOPEN
•FailedDPFOTsensor
47654
DOCITsignalOutofRangeLOW•DOCITsignalcircuitshorttoGND
•FailedDPFOTsensor
4765
7
DOCITnotincreasingwithengine
temperature
•BiasedDPFOTsensororcircuit
54563
AFTFTsignalOutofRangeHIGH•AFTFTsignalcircuitOPENorshortto
PWR
•FailedAFTFIS
54564
AFTFTsignalOutofRangeLOW•AFTFTsignalcircuitshorttoGND
•FailedAFTFIS
55411
TC1TOPpressurebelowminimum
•FailedExhaustBackPressurevalve
(Stuckopen)
55413
TC1TOPsignalOutofRangeHIGH•TC1TOPsignalcircuitOPENorshortto
PWR
•SIGGNDcircuitOPEN
•FailedTC1TOPsensor
55414
TC1TOPsignalOutofRangeLOW•TC1TOPsignalcircuitshorttoGND
•FailedTC1TOPsensor
77
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