Service Manual

YanmarEngineElectronicControlUnit(ECU)(continued)
2
1
g275701
Figure158
1.Electroniccontrolunit(model30606/
30608/30644)
2.Alternator
TheYanmarenginethatpowerstheGroundsmaster4100−Dand4110−Duses
anelectroniccontrolunit(ECU)forenginemanagementandalsotocommunicate
withtheTECcontrollersandtheInfoCenterDisplayonthemachine.Allengine
ECUelectricalconnectorsshouldbepluggedintothecontrollerbeforethe
machinekeyswitchismovedfromtheOFFpositiontoeithertheRUNorSTART
position.IftheengineECUistobedisconnectedforanyreason,makesurethat
thekeyswitchisintheOFFpositionwiththekeyremovedforaminimumof
thirty(30)secondsbeforedisconnectingtheengineECU.SeeEngineElectronic
ControlUnit(ECU)(page4–3)foradditionalengineECUinformation.
Groundsmaster
®
4100-D&4110-D
Page6–5
ElectricalSystem:GeneralInformation
13203SLRevE