TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 1 Download
Page 386 of 890
TM 9-2320-280-20-1 KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION KNOWN INFO POSSIBLE PROBLEMS TEST OPTIONS REASON FOR QUESTION NO YES NO YES 2-292 Change 1 STARTER CIRCUIT G4 G5 DISCONNECT WIRE 29A FROM ROTARY SWITCH. IS THERE CONTINUITY FROM WIRE 29A AT ROTARY SWITCH TO SOCKET “B” OF PCB/DISTRIBUTION BOX BODY CONNECTOR HARNESS ? RECONNECT PCB/DISTRIBUTION BOX BODY CONNECTOR HARNESS. DO YOU HAVE BATTERY VOLTAGE AT THE “R” TERMINAL OF THE ROTARY SWITCH WITH THE SWITCH IN “RUN” AND IN “START”? NEUTRAL SAFETY SWITCH OK ROTARY SWITCH PCB/DISTRIBUTION BOX WIRING NEUTRAL SAFETY SWITCH OK ROTARY SWITCH PCB/DISTRIBUTION BOX WIRING FROM G3, Page 2-290 REPAIR WIRE 29A OR 29C OR REPLACE HARNESS 1. STE/ICE-R TEST 91 (Page 2-752) 2. MULTIMETER If this wire doesn't carry battery voltage to the PCB/distribution box, the PCB/distribution box will not send battery voltage to the starter solenoid. 1. STE/ICE-R TEST 89 (Page 2-750) 2. MULTIMETER If there isn't battery voltage at the RUN terminal in both the RUN and START positions, the vehicle won't start. REPLACE ROTARY SWITCH GO TO G6, Page 2-294 DIAGNOSTIC FLOWCHART