TM 9-2320-365-20-12-526YESSTART1.Headlight low beamsilluminate.Does one headlight highbeam illuminate?Operational TestThis test eliminatespossible problems anddetermines wheretroubleshooting continues.NOFaulty headlight lamp.Faulty dashboard cableassembly.Faulty front lights cableassembly.Faulty relay K8.Faulty turn signalswitch.KNOWN INFOPOSSIBLE PROBLEMSTEST OPTIONSREASON FOR QUESTION2.Is continuity presentbetween headlight lampwire 17 and headlightlamp wire 91?YESIf continuity is not present,headlight lamp is faulty. Ifcontinuity is present,wire 17 is faulty.NOHeadlight low beamsilluminate.One headlight high beamilluminates.Dashboard cableassembly OK.Relay K8 OK.Turn signal switch OK.Faulty headlight lamp.Faulty wire 17.KNOWN INFOPOSSIBLE PROBLEMSTEST OPTIONSContinuity Test orSTE/ICE-R #91REASON FOR QUESTIONe42. ONE OR BOTH HEADLIGHT HIGH BEAMS DO NOT ILLUMINATEINITIAL SETUPEquipment ConditionEngine shut down (TM 9-2320-365-10).Personnel Required(2)Tools and Special ToolsTool Kit, Genl Mech (Item 44, Appendix C)STE/ICE-R (Item 39, Appendix C)Multimeter, Digital (Item 22, Appendix C)ReferencesTM 9-4910-571-12&PGo to step 3 of this fault.Replace headlight lamp(para 7-34).Repair wire 17 (para 2-40)or replace front lights cableassembly (para 7-74).
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