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Allison Transmission 3000 Series User Manual

Allison Transmission 3000 Series
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forserviceassistance.Ifthevehicleengineisturnedoff,prepareforthe
possibilitythatatenginerestartthetransmissionmaybelockedinN(Neutral)
andwillnotacceptoperatorrequeststochangerangeifaDTCthatcausesa
CHECKTRANSlightisactiveattimeofenginerestart.
NOTE:SomeDTCsmaybeloggedwithouttheTCMactivatingthe
CHECKTRANSlight.ContactyourAllisonTransmissionauthorized
serviceoutletwheneverthereisatransmission-relatedconcern.
TheyhavetheequipmenttoaccessandtroubleshootDTCs.
6.3USINGSHIFTSELECTORFORACCESSING
DIAGNOSTICSINFORMATION
DTCscanbedisplayedonthedisplayportionoftheshiftselector.ADTCis
eitheractiveorhistoric.AnactiveDTCisaDTCthatiscurrentintheTCM
decision-makingprocess.HistoricDTCsareretainedintheTCMmemoryand
donotnecessarilyaffecttheTCMdecision-makingprocess.
6.3.1DISPLAYSEQUENCE.
UptoveDTCsmaybedisplayedoneatatimefromtheselectoroncethe
diagnosticdisplaymodehasbeeninitiatedbytheoperator.EachDTCis5
charactersinlength.TheDTCstatusactiveorinactiveisshownbelowthe
DTC(refertoFigure6–1).
Figure6–1.DTCDisplay
TheoperatorpressestheMODEbuttontoreadthenextDTCinthequeue(if
any)orrequeststoexitdiagnosticsmode.Thediagnosticsmodetimesout
andreturnstheselectortonormaloperatingmodeafterapproximately10
minutesofoperatorinactivity.
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Allison Transmission 3000 Series Specifications

General IconGeneral
TypeAutomatic Transmission Controller
Control ModuleIntegrated
Shift Energy ManagementYes
Number of Gears6
Torque ConverterYes, with lock-up clutch
RetarderOptional
PTO ProvisionYes
Input Voltage12V or 24V
Communication ProtocolSAE J1939
Operating Temperature Range-40°C to +85°C

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