Operator's Manual

theenginedoesnotstart,airmaybetrappedbetween
theinjectionpumpandinjectors;refertoBleedingAir
fromtheInjectors(page42).
Understandingthe
DiagnosticLight
Themachineisequippedwithadiagnosticlight
thatindicatesiftheelectroniccontrollersensesan
electronicmalfunction.Thediagnosticlightislocated
onthecontrolpanel(Figure40).Whentheelectronic
controllerisfunctioningcorrectlyandyoumovethe
keyswitchtotheONposition,thecontrollerdiagnostic
lightturnsonfor3secondsandturnofftoindicate
thatthelightisworkingproperly.Iftheengineshuts
off,thenthelightturnsonsteadyuntiltheyouchange
keyposition.Thelightblinksifthecontrollerdetectsa
malfunctionintheelectricalsystem.Thelightstops
blinkingandautomaticallyresetswhenyouturnthe
keyswitchtotheOFFpositiononcethefaulthasbeen
resolved.
g020251
Figure40
1.Diagnosticlight
Whenthecontrollerdiagnosticlightblinks,1of
thefollowingproblemshasbeendetectedbythe
controller:
•Anoutputhasbeenshorted.
•Anoutputisopencircuited.
Usingthediagnosticdisplay,determinewhichoutput
ismalfunctioning;refertoCheckingtheInterlock
Switches(page32).
Ifthediagnosticlightisnotilluminatedwhenthekey
switchisintheONposition,thisindicatesthatthe
electroniccontrollerisnotoperating.Possiblecauses
areasfollows:
•Theloop-backisnotconnected.
•Thelightisburnedout.
•Fusesareblown.
•Itisnotfunctioningcorrectly.
Checktheelectricalconnections,inputfuses,and
diagnosticlightbulbtodeterminethemalfunction.
Ensurethattheloop-backconnectorissecuredto
thewireharnessconnector.
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