Service Manual

ToroElectronicController(TEC)(Models44552,44552TE,and
44553)(continued)
TECDigitalInputs
INPUTNUMBER
DESCRIPTION
INPUTNUMBER
DESCRIPTION
DIN1HourMeterand
EngineOilPressure
Switch
DIN6NotUsed
DIN2NotUsedDIN7NotUsed
DIN3NotUsedDIN8NotUsed
DIN4NotUsedKEYRUN
KeySwitch(RUN
position)
DIN5NotUsed
KEYSTARTKeySwitch(START
position)
TECOutputs
OUTPUTNUMBERDESCRIPTIONOUTPUTNUMBERDESCRIPTION
THROTTLE
CONTROL(PWM)
EngineGovernor
ControlUnit(GCU)
OUT4Engine:FuelShut
OffandIgnitionCoils
OUT1StartRelayOUT5
NotUsed
OUT2
NozzleRelay1
OUT6
DiagnosticLED
OUT3
NozzleRelay2
OUT_LS(-)
MainPowerRelay
ThemachineelectricalschematicandwireharnessdrawingsinElectrical
DrawingDesignations(pageA–2)canbeusedtoidentifypossiblecircuit
problemsbetweenthecontrollerandtheinputoroutputdevices(e.g.switches
andrelays).
IMPORTANT
Whentestingforwireharnesscontinuityattheconnectorfor
thecontroller,takecaretonotdamagetheconnectorpinswith
multimetertestleads.Ifconnectorpinsareenlargedordamaged
duringtesting,connectorrepairmaybenecessaryforproper
machineoperation.
ProForce®DebrisBlower
Page5–13
ElectricalSystem:TestingtheElectricalComponents
18237SLRevB