Toro 04042 - Fault 02 12 VDC Supply

Fault0212VdcSupply
InfoCenterDisplay:12VdcSupplyFault
FaultDescription
TheTEC-2401isnotabletomaintain12Vdcregulationatanacceptablelevel.
CircuitDescription
TheTEC-2401hasaninternalDC-DCconverterthatsupplies12VdcpowerforvariouscircuitsincludingtheInfoCenter,the
optionalwirelesshourmeter,andtheEZ-Turn(Slow-in-Turn)proximitysensor.
ConditionsforSettingtheFault
TheTEC-2401checksandthenmonitorsforpropervoltage.Ifthe12Vdcoutputisnotmaintainingregulation(i.e.,dropping
below10.65Vdc),thesystemtriggersthefault.
Note:Themostlikelycauseforthisfaultisashortcircuitofthe12Vdcsupplyline.
RecommendedServiceActions
Step1:Verifythatthefaultrepeats.
1.CleartheInfoCenterfaultlog.RefertoClearingtheInfoCenterFaultLog(page19).
2.Disconnectthebatterypackfor30seconds.RefertoDisconnectingtheBatteryPack(page17).
3.Connectthebatterypack.RefertotheConnectingtheBatteryPack(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:Useamultimetertoperformvoltage,continuity,andshortcondition
checks.
Note:YouwillndadditionalwireharnessandconnectorinformationinAppendixA:WireHarnesses(page113)and
AppendixB:ToroElectronicControllerConnections(page135).
The12Vdcsupplyisconnectedtothesecomponents:
•InfoCenter
•Optionalwirelesshourmeter
•EZ-Turn(Slow-in-Turn)proximitysensor
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