Toro Groundsmaster 360 - CAN-Bus Terminator Resistor

CAN-busTerminatorResistor
g035036
Figure236
1.CAN-busterminatorresistor
2.Keyway
Thesystemcommunicationbetweentheelectricalcomponentsonthe
Groundsmaster360machineisaccomplishedonaCAN-buscommunication
system.The2speciallydesigned,twistedcablesformthebusforthenetwork
areusedonthemachine.Thesewiresprovidethedatapathwaysbetweenthe
machinecomponents.
Thetwo120ohmCAN-busterminatorresistorsplugintotheplatformwire
harnessinthepowercenterassemblybehindtheoperatorseat.Theresistorcan
beaccessedbyremovingthepowercentercover.
Note:Theinsulatorwedgeintheterminatorresistorisblueforidentication
purposes.Thereisalsoacenterkeywaytopreventtheterminatorresistorfrom
pluggingintothewrongwireharnessconnector.
Note:RefertotheElectricalSchematicsandWireHarnessDrawings/Diagrams
inAppendixA(pageA–1)—FoldoutDrawingsforadditionalinformationonthe
locationoftheterminatorresistorandwireconnections.
TestingtheCAN-busTerminatorResistor
1.TheCAN-busterminatorresistor(Figure236)canbetestedusingadigital
multimeter(ohmssetting).LocatetheCAN-busterminatorresistorand
removethecabletiethatsecurestheresistortothewireharness.Unplugthe
resistorfromthewireharnessfortesting.
2.Useadigitalmultimeter(ohmssetting)tomeasuretheresistancevaluefor
theCAN-busterminatorresistor.Thereshouldbe120ohmsresistance
betweentheterminalsAandB.TheterminalCisnotused.
3.IfthetestingdeterminesthattheCAN-busterminatorresistorisdamaged,
replacetheCAN-busterminatorresistor.
4.Afteryoucompletethetesting,ensurethattheCAN-busterminatorresistor
isfullyinstalledintothewireharnessconnectorandsecuredtothewire
harnesswithcabletie.
Groundsmaster360
Page5–95
ElectricalSystem:TestingtheElectricalComponents
16225SLRevC