Operator's Manual

pedal,etc.),andnotethattheappropriateLED
onDiagnosticACEwillblinkonandoffwhen
correspondingswitchisclosed.Repeatoneach
switchthatispossibletobechangedbyhand.
7.IfswitchisclosedandappropriateLEDdoesnot
turnon,checkallwiringandconnectionstoswitch
and/orcheckswitcheswithanohmmeter.Replace
anydamagedswitchesandrepairanydamaged
wiring.
TheDiagnosticACEalsohastheabilitytodetect
whichoutputsolenoidsorrelaysareturnedon.
Thisisaquickwaytodetermineifamachine
malfunctioniselectricalorhydraulic.
Toverifyoutputfunction:
1.Parkmachineonalevelsurface,lowerthecutting
units,stoptheengineandengagetheparkingbrake.
2.Opencontrolpanelcover.Locatewireharness
andconnectorsnearcontroller.Carefullyunplug
loopbackconnectorfromharnessconnector.
3.ConnecttheDiagnosticACEconnectortothe
harnessconnector.Makesurecorrectoverlaydecal
ispositionedonDiagnosticACE.
4.TurnthekeyswitchtotheOnposition,butdonot
startmachine.
Note:Theredtextontheoverlaydecalrefersto
inputswitchesandthegreentextreferstooutputs.
5.The“outputsdisplayed”LED,onlowerright
columnofDiagnosticACE,shouldbeilluminated.
If“inputsdisplayed”;LEDisilluminated,pressthe
togglebutton,onDiagnosticACE,tochangeLED
to“outputsdisplayed.”
Note:Itmaybenecessarytotogglebetween
“inputsdisplayed”and“outputsdisplayed”several
timestodothefollowingstep.Totogglebackand
forth,presstogglebuttononce.Thismaybedone
asoftenasrequired.Donotholdthebutton.
6.Sitontheseatandattempttooperatethedesired
functionofthemachine.Theappropriateoutput
LED’sshouldilluminatetoindicatethattheECU
isturningonthatfunction.(RefertoHydraulic
SolenoidValveFunctionstobecertainofthe
speciedoutputLEDs.)
Note:IfanyoutputLEDisblinking,this
indicatesanelectricalproblemwiththatOUTPUT.
Repair/replacedefectiveelectricalpartsimmediately.
ToresetablinkingLED,turnthekeyswitch“Off”,
thenback“On”andclearthecontrollersfault
memory(RefertoClearingtheFaultMemoryin
FaultMemoryandRetrieval).
IfnooutputLEDsareblinking,butthecorrect
outputLED’sdonotilluminate,verifythatthe
requiredinputswitchesareinthenecessary
positionstoallowthatfunctiontooccur.Verify
correctswitchfunction.
IftheoutputLEDsareonasspecied,butthe
machinedoesnotfunctionproperly,thisindicatesa
non-electricalproblem.Repairasnecessary.
Note:Duetoelectricalsystemconstraints,
theoutputLED’sfor“Start”,“Preheat”and
“ETR/ALT”maynotblinkeventhoughan
electricalproblemmayexistforthosefunctions.If
themachineproblemappearstobewithoneof
thesefunctions,becertaintochecktheelectrical
circuitwithavolt/ohmmetertoverifythatno
electricalproblemexiststothesefunctions.
Ifeachinputswitchisinthecorrectposition
andfunctioningcorrectly,buttheoutputLEDs
arenotcorrectlyilluminated,thisindicatesan
ECUproblem.Ifthisoccurs,contactyourToro
Distributorforassistance.
FaultMemoryandRetrieval
IftheControllersensesafaultononeoftheoutput
solenoids,itwillashthemachinesdiagnosticLamp
(ReelDiagnosticLamponconsoleorGreenDiagnostic
Lampunderconsole)andstorethefaultintothe
Controllers(ECU)memory.Thefaultcanthenbe
retrievedandviewedwiththeDiagnosticACEhand
heldtooloralaptop/PCatanytime.TheController
willstoreone(1)faultatatimeandwillnotstore
anotherdifferentfaultuntiltherstfaultiscleared.
RetrievingFaultInformation
RetrievingStoredFaults(Donotsitinseat)
1.RotateignitionkeytoOffposition.
2.ConnecttheHandheldDiagnosticTooltothe
desiredControllerLoopbackConnector(usethe
properoverlay).
3.MovetheJoysticktotheRaisepositionandhold.
4.RotateignitionkeytoOnposition,andcontinueto
holdtheJoystickinRaisepositionuntilthetopleft
DiagnosticToollightcomeson(approx.2seconds).
5.ReleasetheJoysticktothecenterposition.
6.HandheldToolwillnowplaybackthefaultretained
intheControllermemory.
Important:Thedisplaywillshoweight(8)
individualrecordswiththefaultdisplayedon
30