TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
Page 424 of 1205
TM 9-2320-387-24-l INSTRUMENTS CIRCUIT KNOWN INFO WIRE 27C OK WIRE 27D OK CIRCUIT BREAKER 1 OK POSSIBLE PROBLEMS WIRE 400D SWITCH DIAGNOSTIC FLOWCHART TEST OPTIONS IS THERE CONTINUITY FROM WIRE 400D AT THE HEATER MOTOR TO WIRE 400D AT THE HEATER FAN SWITCH? 1. STEXE-R TEST 91 (Page 2-508) 2. MULTIMETER REASON FOR QUESTION Continuity indicates that the wiring is OK, and the switch must be the REPAIR/REPLACE WIRE 400D. RETURN REPLACE THE HEATER FAN SWITCH. RECONNECT ALL WIRES. RETURN TO P4, PAGE 2-364. 1 2-370