Navistar N10

281DIAGNOSTICTROUBLESHOOTINGPROCEDURES
Step4RecordsnapshotofnostartrelatedKey-OnEngine-Off(KOEO)Data.Decision
PerformRecordSnapshotofKOEOdata(page2113).
Arebatteryvoltage,FDP ,ICP,andenginetemperaturesensorvalueswithin
KOEOspecications?
Yes:GotoStep5.
No:Batteryvoltage
outofspecication:
Repairbattery,starting
system,chargingsystem,
orECMPWRcircuit
problem.Afterrepairs
arecomplete,retestfor
originalproblem.
No:FDPoutof
specication:Goto
8.1LowFuelDelivery
Pressure(page120).
No:ICPoutof
specication:Goto
SPN164FMI0Fault
CodeDiagnostics(page
1287).
No:Oneormoreengine
temperaturesensors
notwithin20°F(7°C)
ofothersaftercold
soak:GotoFault
CodeDiagnostics(page
142)forsensoroutof
specication.
Step5Recordsnapshotofenginecrankingdata.Decision
PerformEngineCrankingT est(page2172).
AreSwitchBattery(SWBAT),EngineSpeed(rpm),ICP ,IPR,FDP ,andEGR
withinenginecrankingspecication(page2403)?
Yes:GotoStep6.
No,SWBATorEngine
Speed(rpm)outof
specication:Goto2.1
EngineCranksSlowor
DoesNotCrank(page
49).
No,:ICPorIPRout
ofspecication:Goto
CPAHigh-PressureOil