TM 9-2350-287-20-12-19. TROUBLESHOOTING CHART (continued).h. LIGHTS (continued).(4) ENGINE LOW LEVEL COOLANT LIGHT FAILS TOOPERATE WHEN PRESSED-TO-TEST. All otherlights operate (continued).B.1. Install light bulb to press-to-test indicatoron driver's portable instrument panel.2. Remove four screws and cover panelfrom portable instrument panel.3. Disconnect wire 27 of harness 12260298from wire 27 of coolant low level light.4. Place red lead of multimeter in wire 27 ofharness 12260298 and ground black lead.5. Turn MASTER switch ON (refer to TM 9-2350-287-10).6. Check for 24 ± 3 vdc.7. Turn MASTER switch OFF (refer to TM 9-2350-287-10).Is voltage indicated?Replace wire 27 or replace harness12260298 (para 7-7). Verify problemis solved.C. 1. Reconnect wire 27 of harness 12260298to coolant low level coolant light.2. Disconnect wire 352A of harness12260298 from wire 352A of coolant lowlevel light.3. Insert a grounded jumper wire into wire352A of coolant low level light.4. Turn MASTER switch ON (refer to TM 9-2350-287-10).5. Press press-to-test button.Continued on next page2-148
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