Pass
Thefaultdidnotrepeat.GotoReturningtheMachinetoService(page22)andfollowthestepslisted.
Fail
Thefaultrepeated.Gotostep4.
Step4:Testtheenginestartoutputsignalwiring.
Useamultimetertotestresistancebetweenthefollowingpairoflocations:
LocationHarness
Connector
Pin
Wire
Color
Expected
Reading
ConnectorGraphic
1MainP212
Brown/
Black
2
Chassisground
70to100
ohms
Pass
Thewiringtestedgood.GotoStep5.
FailThemultimetermeasuredresistancelessthan70ohmsormorethan100ohms.Repairorreplace
defectivewiringasneeded.GotoReturningtheMachinetoService(page22)andfollowthesteps
listed.
Step5:SwaptheprimaryTECwithaknowngoodunit.
Note:TECcontrollersareprogrammedtospecicmachinemodelandserialnumbers.TECcontrollersdonot
functionuntilprogrammedbyT oroDIAG.
TherearethreeproceduresthatyouneedtoaccomplishaspartofreplacingaTEC.RefertoReplacingaToro
ElectronicController(TEC)(page26).
1.UseT oroDIAGtosavethemachinetimersandcountersleoutofthemachine.(page26)
2.ReplacetheTEC-5002.(page26)
3.UseToroDIAGtoProgramtheTEC-5002.(page27)
Thefaultnolonger
repeats.
GotoReturningtheMachinetoService(page22)andfollowthestepslisted.
Thefaultstillrepeats.ReinstalltheoriginalprimaryTECcontroller.Repeatthediagnosticprocessfor
thisfault.
ElectricalDiagram
g033140
Figure60
87