Toro Greensmaster TriFlex 3400 - Fault 52: Charging System High Voltage

Fault52:ChargingSystemHighVoltage
InfoCenterDisplay:
_____FAULT#52_____
CHARGINGSYSTEM
VTOOHIGH
FaultDescription
The12Valternatorisproducingavoltageabove16.3V.
Chargingsystem(alternator)isproducingavoltagethattheTEChasdeterminedtobeout-of-rangeonthe
highside.
CircuitDescription
The12VDCalternatorisdesignedtobeintegratedwiththeengine.Itprovidesenergytoruntheengineand
maintain12Vbatterycharge.
RecommendedServiceActions
Step1:Verifythatthefaultrepeats.
1.ClearthesystemfaultsfromtheInfoCenter.RefertoClearingFaultsfromtheInfoCenter(page19).
2.Operatethemachine.
Pass
Thefaultdidnotrepeat.GotoReturningtheMachinetoService(page21)andfollowthestepslisted.
Note:Ifthefaultdoesnotrepeat,anisolatedeventhasoccurred.
Fail
Thefaultrepeated.GotoStep2.
Step2:Checkthevoltageofthe12Vbatterywiththeenginerunning.
1.Starttheengine
2.Monitorthe12Vbatteryvoltageusingamultimeter.
Pass
Thebatteryvoltageisbetween11.5Vto14.5V.GotoStep3.
FailThebatteryvoltageisnotbetween11.5Vand14.5V.ReplacethealternatorasshownintheEngine
chapteroftheGreensmasterTriFlex3320/3420ServiceManual,thengotoReturningtheMachineto
Service(page21)andfollowthestepslisted.
Step3:Checkthecontinuityofthealternatorwirefeedingbackinto
theTECcontroller.
1.DisconnectconnectorP1attheprimaryTECcontroller.
2.Locatethewhitewireatinput12.
3.Unplugthealternator.
4.Locatethewhitewireinthealternatorharnessplugconnector.
5.Usingadigitalvolt/ohmmeter,testforcontinuitybetweenbothendsofthewhitewire.
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