TM 9-2320-365-20-2 2-1326 e118.  M1079 VAN DOOR OPEN INDICATOR DOES NOT OPERATE (CONT) YES NO KNOWN INFO TEST OPTIONS REASON FOR QUESTION 2. Other indicator lights illuminate. Audible alarm sounds when FRONT BRAKE AIR or REAR BRAKE AIR pressure gage reads less than 65 psi. Circuit breaker CB50 OK. POSSIBLE PROBLEMS Voltage Test or STE/ICE-R #89 YES NO KNOWN INFO TEST OPTIONS REASON FOR QUESTION Voltage Test or STE/ICE-R #89 3. Other indicator lights illuminate. Audible alarm sounds when FRONT BRAKE AIR or REAR BRAKE AIR pressure gage reads less than 65 psi. Circuit breaker CB50 OK. Lighted indicator display OK. POSSIBLE PROBLEMS WARNING Read WARNING on following page. WARNING Read WARNING on following page. Is 24 vdc present at connector P912-7? If 24 vdc is not present, lighted indicator display is faulty. Replace lighted indicator display (para 7-16). Repair wire 2006 (para 2-40) or replace WTEC II dashboard cable assembly (para 7-10 or WTEC II dashboard cable assembly (para 7-11). If 24 vdc is not present, wire 2006 is faulty. Is 24 vdc present at connector P912-1? Faulty lighted indicator display. Faulty dashboard cable assembly. Faulty auxiliary panel cable assembly. Faulty M1079 12/24 vdc power cable. Faulty door ajar switch. Faulty wire 2006. Faulty wire 1506. Faulty wire 3086. Faulty wire 2010. Faulty flasher ECU. Faulty dashboard cable assembly. Faulty auxiliary panel cable assembly. Faulty M1079 12/24 vdc power cable. Faulty door ajar switch. Faulty wire 2006. Faulty wire 1506. Faulty wire 3086. Faulty wire 2010. Faulty flasher ECU.