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7.0SHIFTSELECTORSCOMPONENTS

ANDFUNCTIONS

7.1SELECT/MONITORDISPLAY

Atwo-charactervacuumuorescentblue-greendisplayisincludedonthe

faceofeachbump-shiftleverandkeypadpushbuttonshiftselector.Thestrip

pushbuttonselectordoesnothaveaVacuumFlourescentDisplay(VFD).

Theleftcharacter,calledtheSELECTdisplayappropriatelydesignatesN

(Neutral),R(Reverse),orthehighestgearavailableoftheselectedforward

range.Therightcharacterofthedisplay,calledtheMONITORdisplay,

designatestheactualgearbeingcommandedbytheTCM.Thedisplayofany

othercharacterintheSELECTorMONITORdisplaydenotesanon-standard

operatingcondition.

7.2BACKLIGHTING

Duringnormalvehicleoperation,backlightingisprovidedforallkeypad

buttonsofthepushbuttonshiftselector,andbuttonsonthestrippushbutton

selector.

TheMODEbuttonandtheDISPLAYMODEDIAGNOSTIC(DMD)buttonwith

theAllisonlogoarecontinuallybacklitduringnormalvehicleoperation.

7.3MODEBUTTON

NOTE:ThereisnoMODEbuttonlocatedonthestripbuttonselector.

TheMODEbuttonislocatedonthebezelfaceofthebump-shiftleverselector

orkeypadpushbuttonshiftselector.TheMODEbuttoncanbepressed

anytimeafterenginestarttoactivatethealternateshiftscheduleorspecial

function.

TheMODEbuttonperformsthefollowingfunctions:

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Allison Transmission T 270 User Manual

Questions and Answers: