TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
Page 456 of 1205
TM 9-2320-387-24-l TRANSMISSION SYSTEM DIAGNOSTIC FLOWCHART IGNITION POWER 291 D i Reset tram pwr CB and recheck voltage >12V? 0 NO Check for >12V on tram relay pin 3 (wire 29OC/291C). Repair wire 2906/291 C. Repair wire 29D/29T. Check run pwr CB for >24V (wire 29D). I I Check for >12V on tram relay pin 4 (wire 2908/291 B). , Check trans pwr CB out for >12V (wire 290A/291/%37A). Check f,or >24V on wire 29T at trans relay (pin 2). Repair wire 29OAf291Af537A. I Check trans pwr CB In for >12V (wire 290/291/537). Check for zero V (gnd) on wire 57T at trans relay (pin 1). 2-404