e15. AUDIBLE ALARM DOES NOT OPERATE START 1. WARNING Read WARNING on following page.             KNOWN INFO                         TEST OPTIONS            Some lights on lighted indictor display illuminate.        POSSIBLE PROBLEMS        Faulty audible alarm. Faulty dashboard cable assembly. Faulty lighted indicator display. Voltage Test or STE/ICE-R Test #89     REASON FOR QUESTION     This question eliminates possible problems and determines where troubleshooting continues. NO YES Go to step 4 of this fault.             KNOWN INFO              Some lights on lighted indictor display illuminate.        POSSIBLE PROBLEMS        Faulty audible alarm. Faulty dashboard cable assembly. Faulty lighted indicator display. 2. Does audible alarm operate with terminal lug TL160 connected to a known good ground?            TEST OPTIONS            Operational Test     REASON FOR QUESTION     If audible alarm does not operate when terminal lug is TL160 grounded, audible alarm is faulty. NO YES WARNING Read WARNING on following page. Is 24 VDC present at terminal lug TL161? INITIAL SETUP   Equipment Conditions     Engine shut down (TM 9-2320-365-10).     Air tanks drained (TM 9-2320-365-10).   Tools and Special Tools     Tool Kit, Genl Mech (Item 44, Appendix C)     STE/ICE-R (Item 39, Appendix C)     Multimeter, Digital (Item 22, Appendix C) Materials/Parts   Wire, Elect, 50 ft (Item 77, Appendix D) Personnel Required   (2) References   TM 9-4910-571-12&P Replace audible alarm (para 7-35). TM 9-2320-365-20-1 2-358          Change 1