TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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TM 9-2320-387-24-l FUEL SYSTEM DIAGNOSTIC FLOWCHART KNOWN INFO T OPTIONS 1. STEXE-R TEST 91 (Page 2-508) 2. MULTIMETER 29C OK DISCONNECT WIRE 11A FROM THE ROTARY SWITCH. DO YOU HAVE CONTINUITY BETWEEN WIRE 11A AT THE SWITCH AND SOCKET G IN THE BODY CONNECTOR HARNESS? POSSIBLE PROBLEMS REASON FOR QUESTION PCB ROTARY SWITCH WIRING If this wire is ok, the problem may be in the rotary switch. KNOWN INFO iT OPTlONS 1. STUICE-R TEST 91 (Page 2-808) 2. MULTlMl3ER WIRING OK WITH THE ROTARY SWITCH IN THE RUN POSITION, DO YOU HAVE CONTINUITY BETWEEN THE TERMINALS FOR WIRES 11A AND 29A ON THE ROTARY SWITCH? POSSIBLE PROBLEMS REASON FOR QUESTION If the rotary switch is ok, the problem is the PCB. PCB ROTARY SWITCH ST OPTIONS 1. STEIICE-R TEST 91 (Page 2-508) 2. MULTIMETER I RECONNECT THE BODY CONNECTOR HARNESS THEN THE ENGINE CONNECTOR HARNESS. DO YOU HAVE CONTINUITY BETWEEN WIRE 29A AT THE ROTARY SWITCH AND WIRE 54A AT THE FUEL SOLENOID? KNOWN INFO ROTARY SWITCH OK REASON FOR QUESTlON If there is no continuity, there is an open inside the PCB. POSSIBLE PROBLEMS PCB REPLACE PCB. 2-138