Service Manual

Table Of Contents
PrimaryController(T1:TEC)
g328863
Figure79
(maininstrumentpanelremoved)
1.PrimarycontrollerT1:TEC3.Platformharnessconnector
2.Harnessconnectorscrew
Outcross9060machinesuseaprimarycontroller(T1:TEC)tomanagemachine
electricalfunctions.TheT1:TECisa5004seriesmicrocontrollerthatmonitors
theconditionofvariousmachineswitchesandsensors(inputs)anddirects
electricalpowertocontrolappropriatemachinefunctions(outputs)basedon
thestateoftheinputs.TheT1:TECworksinconjunctionwiththeT2:TDMto
managetheenginestartandrunsignals,theelectricfuelpump,andthevarious
hydraulicsolenoidvalves.Thestatusofinputstothecontrolleraswellasoutputs
fromthecontrollerscanbemonitoredwiththeInfoCenterDisplay;refertoUsing
theInfoCenterDisplayforTroubleshooting(page3–23).
TheT1:TECisattachedtothemachineunderthemaininstrumentpanel.
PowerfortheT1:TEClogicandmemoryisavailableatalltimes(unswitched).
Thelogicandmemorycircuitisprotectedbya2Ampfuse(F−B2).Powerfor
theT1:TECoutputsisavailablewhenthemainpowerrelayisenergized(key
switchisintheONorSTARTposition).Aseriesoffour7.5Ampfuses(F−A1,
B1,C1,andD1)protecttheT1:TECoutputcircuits.
Outcross9060
Page6–19
ElectricalSystem:ElectricalComponentTesting
18234SLRevD