TM 9-2350-287-20-12-19. TROUBLESHOOTING CHART (continued).h. LIGHTS (continued).(5) GLOW PLUG WAIT LIGHT FAILS TO OPERATE,ENGINE STARTS IN COLD WEATHER (BELOW50° F). All other lights operate.Initial Setup:Tools/Test Equipment:Portable instrument panel stowed in outsideDigital multimeter (DMM) (Item 13, Appendix 1)position (refer to TM 9-2350-287-1 O).General mechanic’s tool kit (Item 24,Appendix I)Equipment Conditions:l MASTER switch set to OFF (refer toTM 9-2350-287-1 0).NOTEInstead of using multi meterfor voltagecheck, STE/ICEtroubleshooting,INDIVIDUALBATTERY VOLTAGE TEST-TEST89 maybe performed.Instead of using multi meterfor continuity check, STE/lCEtroubleshooting, TEST 91 maybe performed.Glow plug controller does not work attemperatures above 50 °F.A. 1. Remove glow plug lens and light bulb fromglow plug indicator.2. Place multimeter red lead in indicator andground black lead.3. Turn MASTER switch ON and hold GLOWPLUG switch ON (refer to TM 9-2350-287-10).4. Check for 24 ± 3 vdc.5. Turn MASTER switch OFF (refer to TM 9-2350-287-10).Is voltage indicated?Replace glow plug indicatorlamp (para2-1527-9). Verify problem.Continued on next page
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