Toro 04042 - Fault 03 5 V Supply

Fault035VSupply
InfoCenterDisplay:5VSupplyFault
FaultDescription
The5VdcregulatorontheTEC-2401isnotabletomaintainregulationatanacceptablevoltagelevel.
CircuitDescription
TheTEC-2401hasaninternalDC-DCconverterthatsupplies5Vdcpowerforvariouscircuitsincludingthespeed-control
positionsensorpotentiometer.
ConditionsforSettingtheFault
TheTEC-2401checksandthenmonitorsforpropervoltage.Ifthe5Vdcoutputisnotmaintainingregulation(dropping
below4.91Vdc),thesystemwilltriggerthefault.
Note:Themostlikelycauseforthisfaultisashortcircuitofthe5Vdcsupplyline.
RecommendedServiceActions
Step1:Verifythatthefaultrepeats.
1.CleartheInfoCenterfaultlog.RefertoClearingtheInfoCenterFaultLog(page19).
2.Disconnectthebatterypackfor30seconds.RefertoDisconnectingtheBatteryPack(page17).
3.Connectthebatterypack.RefertoConnectingtheBatteryPack(page17).
4.Startandoperatethemachine.RefertotheeFlexOperator’sManual.
Pass
Thefaultdidnotrepeat.GotoReturningtheEquipmenttoService(page19)andfollowthe
stepslisted.
Note:Ifthefaultdoesnotrepeat,afalsedetecteventmayhaveoccurred.
Fail
Thefaultrepeated.Gotostep2.
Step2:Checkthechargelevelofthebattery.
ChecktheInfoCenterLCDscreentoensurethatthechargelevelisadequate.Ifthebatteryindicatordoesnotshowatleast1
fullblock,connectthebatterychargertothebatterypackandchargethebatterypacktoatleast40%capacity.
Step3:Remove2accesscoverstoaidtroubleshooting.
Performingthesestepsprovidesaccesstoconnectorsonthewireharnesses.
1.Removetheconsolecover.RefertoConsoleCover(page19).
2.Removethepowercentercover.RefertoPowerCenterCover(page20).
Step4:Useamultimetertoperformvoltageandcontinuitychecksforthespeed
controlposition-sensorpotentiometer.
Note:YouwillndadditionalwireharnessandconnectorinformationinAppendixA:WireHarnesses(page113)and
AppendixB:ToroElectronicControllerConnections(page135).
Note:Refertothetestinginstructionsforthespeed-controlpotentiometercomponentintheeFlexServiceManualChapter4,
ElectricalSystem,ComponentTestingsection.
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