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 INSTRUMENTS KNOWN INFO WIRE 27C OK WIRE 27D OK CIRCUIT BREAKER 1 OK WIRE 400D OK SWITCH OK POSSIBLE PROBLEMS WIRE 57E PCB BODY CONNECTOR DIAGNOSTIC FLOWCHART TEST OPTIONS I DISCONNECT THE PCB BODY CONNECTOR. IS THERE CONTINUITY FROM WIRE 57E AT THE HEATER MOTOR TO SOCKET D OF THE PCB BODY CONNECTOR HARNESS? REPAIR 57E OR REPLACE HARNESS. RETURN TO PS, 1. STVICE-R TEST 91 Page 2-508) 2. MULTIMETER REASON FOR QUESTION If there is continuity, the wiring is OK, and the PCB must be the problem. REPLACE THE PCB. RETURN TO P5, PAGE 2-364. I 2-372