TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
Page 370 of 1205
TM 9-2320-387-24-l INSTRUMENTS CIRCUIT KNOWN INFO ENGINE STARTS AND RUNS SO THERE IS POWER TO THE ROTARY SWITCH POSSIBLE PROBLEMS CIRCUIT BREAKER 2 GAUGES LAMPS SENDING UNITS WIRING KNOWN INFO POWER AVAltABLE TO CIRCUIT BREAKER POSSIBLE PROBLEMS CIRCUIT BREAKER 2 GAUGES LAMPS SENDING UNITS WIRING KNOWN INFO CIRCUIT BREAKER 2 OK POSSIBLE PROBLEMS GAUGES LAMPS SENDING UNITS WIRING DIAGNOSTIC FLOWCHART _ w I TESTOPT~ONS DISCONNECT WIRE 29B FROM CIRCUIT BREAKER 2. WITH ROTARY SWITCH IN THE RUN POSITION, DO YOU HAVE BATTERY VOLTAGE AT WIRE 29B? 1. St-E/ICE-R TEST 89 (Page 2-508) 2. MULTIMETER REASON FOR QUESTION Voltage here indicates that the wiring to the circuit breaker is OK. RECONNECT WIRE 298. DIS- CONNECT WIRE 29D FROM CIRCUIT BREAKER 2. WITH ROTARY SWITCH IN THE RUN POSITION, DO YOU HAVE BATTERY VOLTAGE AT CIRCUIT BREAKER 2? ’ OPTIONS 1. STUICE-R TEST 89 (Page 2-808) 2. MULTIMETER REASON FOR QUESTION If you have voltage here, the circuit breaker is OK. RECONNECT WIRE 29D AT CIRCUIT BREAKER 2. WITH ROTARY SWITCH IN THE RUN POSITON, CHECK FOR BAlTERY VOLTAGE AT THE GAUGE WIRES 27G, 27H, 27J, AND 567A. DO YOU HAVE BAlTERY VOLTAGE AT ANY OF THESE WIRES? OR REPLACE 1. STE/ICE-R TEST 89 (Page 2-808) 2. MULTIMETER REASON FOR QUESTION If you have voltage here, any faults will be in the individual gauge circuits. 2-316