TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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TM 9-2320-387-24-l PROTECTIVE CONTROL BOX KNOWN INFO &iii NOTHING POSSIBLE PROBLEMS BAlTERIES BAD LEAD 578 BAD GROUND PARKING BRAKE SWITCH BAD BODY HARNESS WIRES BAD GLOW PLUG CONTROLLER BAD ALTERNATOR BAD HARNESS WIRE 2A BAD IGNlTlON SWITCH BAD HARNESS WIRE 29A BAD HARNESS WIRE 29C BAD PROTECTIVE CONTROL Box BAD KNOWN INFO BATTERIES OK POSSIBLE PROBLEMS LEAD 570 BAD GROUND PARKING BRAKE SWITCH BAD BODY HARNESS WIRES BAD ALTERNATOR BAD HARNESS WIRE 2A BAD IGNITION SWITCH BAD HARNESS WIRE 29A BAD HARNESS WlRE 29C BAD PROTECTIVE CONTROL BOX BAD KNOWN INFO BATTERIES OK POSSIBLE PROBLEMS LEAD 578 BAD GROUND PARKING BRAKE SWITCH BAD BODY HARNESS WIRES BAD ALTERNATOR BAD HARNESS WIRE 2A BAD IGNITION SWITCH BAD HARNESS WRE 29A BAD HARNESS WIRE 29C BAD PROTECTIVE CONTROL BOX BAD I CONNECT BAlTERY GROUND CABLE WITH IGNITION SWITCH IN THE OFF POSITION. ARE ANY LEDs ON? (REFER TO TABLE AT RIGHT.) DIAGNOSTIC FLOWCHART r OPTIONS 1. TRY IT. 2. VISUAL REASON FOR QUESTION If no LEDs are ON, that would indicate malfunctioning batteries. 8 1 1 TEST OPTIONS ARE LEDs 3 AND 4 ON? VISUAL If these LEDs are not ON, that would indicate PCB malfunctions. IS LED 7 ON? iT OPTIONS VISUAL TEQ REASON FOR QUESTION If this LED is not ON, that would indicate a bad connection to ground. REPAIR GROUND