Service Manual

AirConditioningSwitch(Groundsmaster4010−D)
1
2
g276011
Figure202
1.Cabheadliner
2.Airconditioningswitch
Theairconditioningswitchisusedtocontroloperationoftheairconditioning
systemontheGroundsmaster4010−D.Theswitchislocatedinthecab
headliner(Figure202).
Testing
1.MakesureignitionswitchisOFF .Removekeyfromignitionswitch.
2.Removeswitchplatefromcabheadliner.
3.Locateairconditioningswitchandunplugwireharnessconnectorfrom
switch.
BACK OF SWITCH
g276012
Figure203
4.TheswitchterminalsaremarkedasshowninFigure203.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
ElectricalSystem:ComponentTesting
Page6–48
Groundsmaster
®
4000-D&4010-D
13202SLRevE