Toro Groundsmaster 4500-D Series - Page 65

Fault
ID
FaultTitle
Contro-
ller(s)
Affected
FaultCondition
/Circuit
Description
Additional
Notes
ServiceActions
P2504Alternator-
ChargingT oo
High
T1
Chargingsystem
(alternator)is
producinga
voltagethat
theTEChas
determinedtobe
outofrangeonthe
highside.
1.TestthealternatorusingtheYanmarTNV
(Tier4)ServiceManual.
2.Checkandcleanthebatteryconnections.
3.Testandchargethebattery.
4.Checkthealternatorbeltconditionand
belttension.
5.Checkwiringandconnectors.
6.Testthealternatorwiring.
P2530
KeyStart/Run
CorrelationFault
T1Keystartinputis
activebutthekey
runinputisoff.
Machinewill
beshutdown
sincekey
runinputis
inactive.
1.Checkforaloosewireoraloose
connector.
2.Checktheconnectorforcorrosion.
3.Testthekeyswitchwiringbetweenthekey
switchandtheTEC(P74,pins25and36).
4.Testthekeyswitch.
U0100
CANBus
Communication
Fault-Engine
T1Lost
communication
withengine
controller.
Maydisable
oneormore
machine
functions.
1.Checkthepowersupplytotheengine
controller(ECU).
2.CheckresistanceofCANnetwork.
3.TestthefuseF-A5(10A).
U012A
CANBus
Communication
Fault-
Secondary1
T1Lost
communication
withauxiliaryTEC
controller.
Maydisable
oneormore
machine
functions.
1.ChecktheresistanceoftheCANnetwork.
2.ChecktheCANconnectionattheauxiliary
TEC.
3.VerifypowertotheauxiliaryTEC.
U0156
CANBus
Communication
Fault-IC
T1Lost
communication
withtheInfoCenter.
1.ChecktheresistanceoftheCANnetwork.
2.ChecktheCANconnectionatthe
InfoCenter.
3.VerifypowertotheInfoCenter.
U1007
ControllerMain
PowerRelay
T1Amainpowerrelay
hasfailed.Source
addresstoindicate
whichcontroller
reportedthisfault.
1.Testallthe7.5-ampfuses.
2.Testthefunctionalityofthemainpower
relay.
3.Iftherelaytestpasses,verifythatthe
primaryTECisgetting12Vdcfromthe
relay.
4.Iftherelaytestpasses,verifythatthe
auxiliaryTECcontrollerisgetting12Vdc
fromtherelay.
U1022
TECFuse2
Failure
T1
T2
Fuseisblownon
outputs1–4of
theTEC.Source
addresstoindicate
whichcontroller
reportedthisfault.
Thisfaultwillnot
coincidewiththe
controllermain
powerrelayfault
(U1007).
ForT1:Checkthe7.5-ampfuseF-A1.
ForT2:Checkthe7.5-ampfuseF-A2.
U1023
TECFuse3
Failure
T1
T2
Fuseisblownon
outputs5–8onthe
TEC.
ForT1:Checkthe7.5-ampfuseF-C1.
ForT2:Checkthe7.5-ampfuseF-C2.
Groundsmaster
®
4500-D/4700-D
Page3–25Troubleshooting:
19245SLRevA