TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
Page 368 of 1205
TM 9-2320-387-24-l INSTRUMENTS C,RCUI; A@ I- KNOWN INFO I TESTOPT,ONS DIAGNOSTIC FLOWCHART I DISCONNECT WIRE 296 FROM CIRCUIT BREAKER 2. WITH THE ROTARY SWITCH IN THE OFF POSITION, DO YOU HAVE 0 VOLTAGE AT WIRE 29B? 1. STEXE-R TEST 89 (Page 2-506) 2. MULTIMETER SOME GAUGES AND LAMPS HAVE POWER WHEN THEY SHOULDN’T POSSIBLE PROBLEMS 1 REASON FOR QUESTION Voltage here indicates a short circuit to power. ROTARY SWITCH WIRING ROTARY SWITCH OK POSSIBLE PROBLEMS 1 TEST I OPTIONS 1. STE/ICE-R TEST 89 (Page 2-506) 2. MULTIMETER DISCONNECT WIRE 29D FROM CIRCUIT BREAKER 2. WITH THE ROTARY SWITCH IN THE OFF POSITION, DO YOU HAVE 0 VOLTAGE AT WIRE 29D? REASON FOR QUESTION Voltage here indicates a short circuit to power. WIRING A3 I 1 TEST OPTIONS KNOWN INFO CHECK CONTINUITY FROM ALL 1. STUICE-R TEST 91 GAUGE GROUND TERMINALS TO (Page 2-508) ENGINE GROUND (WIRES 58E-H). 2. MULTIMETER DO YOU HAVE CONTINUITY? REASON FOR QUESTION A good ground circuit is necessary for proper gauge operation. REPAIR 58E-H OR REPLACE NO SHORTS TO POWER POSSIBLE PROBLEMS WIRING 2-314