Toro Groundsmaster 4500-D Series - Page 61

Fault
ID
FaultTitle
Contro-
ller(s)
Affected
FaultCondition
/Circuit
Description
Additional
Notes
ServiceActions
P100CEngineCoolant
Temperature
AboveThreshold
-PTOKill
Yanmar
ECU
Enginecoolant
temperaturehas
reachedacritical
operatinglevelthat
requiresthePTO
tobedisabled.
Enginetemp
mustbe
greaterthan
105ºC.
PTOwillbe
disabled.
1.Checkthefan.
2.Checktheairowpassages.
3.Checkthecoolant.
4.Checkthetemperaturesenderwiringand
connector(P01,pinsK79andK21).
5.Checkthetemperaturesender.
P100D
EngineCoolant
Temperature
AboveThreshold
-EngineKill
Yanmar
ECU
Enginecoolant
temperaturehas
reachedacritical
operatinglevelthat
requirestheengine
tobeshutdown.
Enginetemp
mustbe
greaterthan
115ºC.
Enginewillbe
shutdown.
1.Checkthefan.
2.Checktheairowpassages.
3.Checkthecoolant.
4.Checkthetemperaturesenderwiringand
connector(P01,pinsK79andK21).
5.Checkthetemperaturesender.
P1104
TractionCoil
1FWD-
Overcurrent
T1
Overcurrent
detectedon
tractioncoil1FWD
(neutralFWD).
Indicatesshortto
ground.
1.UsetheInfoCentertoverifythetraction
coiloperation.
2.Ifnoamperagereadingisdisplayed:
A.Checkthetractioncoilwiringand
connector(P74,pin17).
B.Testthetractioncoilwiring.
3.Testthetractioncoil.
4.SwaptheT1:Primarycontrollerwitha
known-goodunit(contactanAuthorized
ToroDistributorforassistance).
P110CTractionCoil1
FWD-Validation
Failure-Current
Converge
T1Acurrentmonitor
whichvalidates
theintended
tractioncoilcurrent
isindicating
anunexpected
variancebetween
thedesiredlevel
ofcurrenttothe
tractioncoiland
theactuallevel
ofcurrenttothe
tractioncoil.
Itisexpectedthat
theactuallevel
ofcoilcurrent
willtrackthe
desiredlevelof
currentsetby
thedrive-by-wire
module.
Tractionis
disabledand
machinewill
cometoa
suddenstop.
1.UsetheInfoCentertoverifythetraction
coiloperation.
2.Ifnoamperagereadingisdisplayed:
A.Checkthetractioncoilwiringand
connector(P74,pin17).
B.Testthetractioncoilwiring.
3.Testthetractioncoil.
4.SwaptheT1:Primarycontrollerwitha
known-goodunit(contactanAuthorized
ToroDistributorforassistance).
Groundsmaster
®
4500-D/4700-D
Page3–21Troubleshooting:
19245SLRevA