Service Manual

AirConditioningSwitch(Groundsmaster4110-D)
1
2
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Figure201
1.Cabheadliner
2.Airconditioningswitch
Theairconditioningswitchisusedtocontroloperationoftheairconditioning
systemontheGroundsmaster4110−D.Theswitchislocatedinthecabheadliner
(Figure201).
Testing
1.MakesurekeyswitchisOFF .Removekeyfromkeyswitch.
2.Removeswitchplatefromcabheadliner.
3.Locateairconditioningswitchandunplugwireharnessconnectorfrom
switch.
BACK OF SWITCH
g276012
Figure202
4.TheswitchterminalsaremarkedasshowninFigure202.Thecircuitlogic
oftheairconditioningswitchisshowninthechartbelow.Withtheuseofa
multimeter(ohmssetting),theswitchfunctionsmaybetestedtodetermine
whethercontinuityexistsbetweenthevariousterminalsforeachposition.
Verifycontinuitybetweenswitchterminals.Replaceswitchiftestingidenties
afaultyswitch.
SWITCHPOSITIONCLOSEDCIRCUITSOPENCIRCUITS
ACOFF
2+1
5+4
2+3
5+6
ACON
2+3
5+6
2+1
5+4
Groundsmaster
®
4100-D&4110-D
Page6–49
ElectricalSystem:ComponentTesting
13203SLRevE