Service Manual

InterlockModule(Optional)
g262116
Figure49
1.Bolt(2each)
3.Handleassembly
2.Interlockmodule
Theinterlockmodulepreventstheenginefromstartingunlessthetraction
controlisdisengaged.
Theinterlockmodulecontrolsgroundingoftheengineignitionsystem.Whenthe
enginestarterropeispulled,theenginemagnetowillbegintocreatecurrent.
Theinterlockmoduleusesthatcurrentthroughthetractionswitchtodetermine
thestateoftheswitch.Ifswitchstateiscorrect,theinterlockmoduleopensthe
magnetotogroundcircuitsotheenginecanstartandrun.Oncerunning,the
interlockmoduleallowstheenginetocontinuetooperate.
Iftheenginewillnotstart,performthefollowingteststodetermineiftheinterlock
moduleisatfault.
1.Checkoperationoftheengineignitionsystem;refertoIgnitionSystem
Operation(page6–5).
2.Checktheoperationoftractionswitch.Adjustorreplaceswitchifnecessary.
3.Checkwireharnessfordamage(seeWiringSchematicandWireHarness
Drawingsinthischapter).Repairorreplaceanydamagedwireharness
components.
4.Iftheengineignitionsystem,tractionswitchandwireharnessallprovetobe
operatingcorrectlyandenginedoesnotstart,replaceinterlockmodule.
ElectricalSystem:ComponentTesting
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