TM-9-2320-366-20-1 MTV Unit Maintenance Manual M1083 Series - Volume 1 Download
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1. Does one headlight illuminate? START KNOWN INFO Nothing. POSSIBLE PROBLEMS TEST OPTIONS Operational Test REASON FOR QUESTION This test eliminates possible problems and determines where troubleshooting continues. NO YES Go to step 3 of this fault. 2. Does left headlight illuminate? TEST OPTIONS Operational Test REASON FOR QUESTION If LH headlight does not illuminate, wire 3052 is faulty. If RH headlight does not illuminate, wire 3051 is faulty. KNOWN INFO POSSIBLE PROBLEMS Faulty front lights cable assembly. NO YES One headlight illuminates. Main light switch OK. Dashboard cable assembly OK. Relay K8 OK. Relay K7 OK. INITIAL SETUP Equipment Condition Engine shut down (TM 9-2320-366-10-1). Personnel Required (2) Tools and Special Tools Tool Kit, Genl Mech (Item 46, Appendix C) STE/ICE-R (Item 41, Appendix C) Multimeter, Digital (Item 22, Appendix C) References TM 9-4910-571-12&P e41. ONE OR BOTH HEADLIGHTS (HIGH AND LOW BEAM) DO NOT ILLUMINATE Repair wire 3052 from connector P19 to terminal lug TL123 (para 2-45) or replace front lights cable assembly (para 7-82). Repair wire 3051 from connector P13 to terminal lug TL81 (para 2-45) or replace front lights cable assembly (para 7-82). 2-532 Change 1 TM 9-2320-366-20-1 Faulty front lights cable assembly. Faulty main light switch. Faulty dashboard cable assembly. Faulty relay K8. Faulty relay K7.