Toro Groundsmaster 360 Service Manual

YanmarEngineElectronicControlUnit(ECU)
g036979
Figure161
1.EngineElectronicControlUnit(ECU)
TheGroundsmaster360machinesuseanelectroniccontrolunit(ECU)for
enginemanagementandtocommunicatewiththeTECandInfoCenterdisplay
onthemachine.IfyoumustdisconnecttheengineECUforanyreason,ensure
thatthekeyswitchisintheOFFpositionwiththekeyremovedforaminimumof
30secondsbeforedisconnectingtheengineECU.
YanmarEngineElectricalComponents
Whenservicingortroubleshootingtheengineelectricalcomponentsusethe
YanmarEngineServiceManualandTroubleshootingManual.ContactyourT oro
distributorforadditionalenginetroubleshootingassistance.
CAN-busCommunications
TheTEC,YanmarengineECU,andInfoCenterdisplayusedonthe
Groundsmaster360machinescommunicatewitheachotheronaCAN-bus
system.Thissystemallowsthetractionunittofullyintegrateallthedifferent
electricalcomponentsofthemachineandbringthemtogetherasone.The
CAN-bussystemreducesthenumberofelectricalcomponentsandconnections
thatareusedonthemachineandallowsthenumberofwiresinthewireharness
tobesignicantlyreduced.Theintegrationoftheelectricalfunctionsalsoallows
theInfoCenterdisplaytoassistwiththeelectricalsystemdiagnostics.
TheCANidentiesthecontrollerareanetworkthatisusedonthemachine.
The2speciallydesigned,twistedcablesformthebus.Thesewiresprovidethe
datapathwaysbetweentheTEC,YanmarengineECU,andInfoCenterdisplay
usedonthemachine.TheengineeringtermforthesecablesaretheCANHigh
andCANLow.Attheendsofthetwistedpairofbuscablesarethe120-ohm
terminatorresistors.
TheCAN-buslinkcontrolseachofthecomponentsthatrequiresonly4wires
tooperateandcommunicatetothesystem:CANHigh,CANLow,B+(power),
andground.
ElectricalSystem:GeneralInformation
Page5–4
Groundsmaster360
16225SLRevC

Toro Groundsmaster 360 Specifications

General

Cutting Width	72 inches
Fuel Type	Diesel
Number of Blades	3
Transmission	Hydrostatic
Turning Radius	0 inches (0 cm) - Zero Turn
Drive System	4WD
Cutting Height	1.5 - 5 inches