Toro Greensmaster TriFlex 3400 - Fault 39: Master TEC Internal Error

Fault39:MasterTECInternalError
InfoCenterDisplay:
____FAULT#39____
TEC5001MASTER
TECFAILURE
FaultDescription
ThisfaultisreportedwhentheprimaryTECdetectsaninternalhardwarefault.
CircuitDescription
TheprimaryTECmonitorstheconditionofvariousmachineswitchesandsensors(inputs)anddirectselectrical
powertocontrolmachinefunctions(outputs)basedonthestateoftheinputs.TheprimaryTECisprimarily
responsibleformanagingtheenginestartsignalandinterlocks.
RecommendedServiceActions
Step1:Verifythatthefaultrepeats.
1.ClearthesystemfaultsfromtheInfoCenter.RefertoClearingFaultsfromtheInfoCenter(page19)
2.Operatethemachine.
Pass
Thefaultdidnotrepeat.GotoReturningtheMachinetoService(page21)andfollowthestepslisted.
Note:Ifthefaultdoesnotrepeat,anisolatedeventhasoccurred.
Fail
Thefaultrepeated.GotoStep2.
Step2:Testthe12VBatteryVoltage.
ReferenceChecktheConditionofthe12VBattery(page16)andtestthecapabilityofthe12Vbattery.
Pass
Thebatterypassedthevoltageandloadtest.GotoStep3.
Fail
The12Vbatterydidnotpassthevoltageand/orloadtesting.Replacethe12Vbattery.Goto
ReturningtheMachinetoService(page21)andfollowthestepslisted.
Step3:SwaptheprimaryTECwithaknowngoodunit.
Note:TECcontrollersareprogrammedtospecicmachinemodelandserialnumbers.TECcontrollersdonot
functionuntilprogrammedbyT oroDIAG.
TherearethreeproceduresthatyouneedtoaccomplishaspartofreplacingaTEC.RefertoReplacingaToro
ElectronicController(TEC)(page23).
1.UseT oroDIAGtosavethemachinetimersandcountersleoutoftheoriginalTEC.(page23)
2.ReplacetheTEC.(page24)
3.UseToroDIAGtoprogramtheTEC,andthenrestoretheTD2le.(page25)
4.DuplicatetheoperationofthemachinewhenthefaultoccurredwiththeoriginalprimaryTEC.
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