Service Manual

TestingtheThrottleControlSwitch(continued)
7.TheswitchterminalsaremarkedasinFigure245.Thecircuitlogicofthe
throttlecontrolswitchisintheCircuitLogicT able(page5–59).Withtheuse
ofamultimeter(ohmssetting),testtheswitchfunctionstodetermineifthe
continuityexistsbetweenthevariousterminalsforeachposition.Checkthe
continuitybetweentheswitchterminals.Replacetheswitchifthetesting
identiesadamagedswitch.
8.Connectthewireharnessconnectortotheswitchaftertesting.
9.Iftheswitchtestingiscorrectandthecircuitproblemstillexists,checkthe
wireharness;refertotheElectricalSchematicsandWireHarnessDrawings
inChapter10—FoldoutDrawings.
10.Installthefrontsteeringtowercover;refertoAssemblingtheSteeringT ower
(page7–4).
CircuitLogicTable
SwitchPositionClosedCircuitsOpenCircuits
LOWIDLE2+1
5+4
2+3
5+6
MIDIDLE2+3
5+4
2+1
5+6
HIGHIDLE2+3
5+6
2+1
5+4
Groundsmaster5900TractionUnit
Page5–59
ElectricalSystem:TestingtheComponent
08159SLRevC