TM 9-2350-287-20-12-19. TROUBLESHOOTING CHART (continued).g. GAGES (continued).(2) ENGINE COOLANT TEMPERATURE GAGE FAILSTO OPERATE PROPERLY, NEEDLE DOES NOTMOVE, IS STEADY, OR INACCURATE. All othergages operate properly (continued).C. 7. Observe coolant temperature gage on in-strument panel.8. Turn MASTER switch OFF (refer to TM 9-2350-287-1 O).Does gage indicate maximum temperature?Replace engine coolant temperaturetransmitter (para 7-36). Verify problem issolved.D. 1. Reconnect wire 33A to engine coolant tem-perature transmitter.2. Disconnect harness 12268418-1 connectorat engine disconnect bracket.3. Insert red multimeter probe into socket K ofharness connector 12268418-1 at engine dis-connect bracket and black probe to ground.4. Turn MASTER switch ON (refer to TM 9-2350-287-10).5. Check for 24 ± 3 vdc.6. Turn MASTER switch OFF (refer to TM 9-2350-287-10).Is voltage indicated?E. 1. Disconnect harness 12260287 connectorfrom driver’s bulkhead disconnect.Continued on next page2-105Repair wire 33A or replace harness12268308 (para 7-50). Verify problemis solved.
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