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 6~0~ 12.y DIAGNOSTIC FLOWCHART KNOWN INFO BATTERIES OK LEAD 578 GROUND OK POSSIBLE PROBLEMS PARKING BRAKE SWITCH BAD BODY HARNESS WIRES BAD ~ GLOW PLUG CONTROLiER ~ BAD ~ ALTERNATOR BAD HARNESS WIRE 2A BAD IGNlTlON SWITCH BAD HARNESS WIRE 29A BAD HARNESS WIRE 29C BAD PROTECTIVE CONTROL BOX BAD LEAD 578 GROUND OK IGNlTlON SWITCH OK HARNESS WIRE 29A OK HARNESS WIRE 29C OK POSSIBLE PROBLEMS PARKING BRAKE SWITCH BAD BODY HARNESS WIRES BAD GLOW PLUG CONTROLLER BAD ALTERNATOR BAD HARNESS WIRE 2A BAD PROTECTIVE CONTROL BOX BAD KNOWN INFO BATTERIES OK LEAD 578 GROUND OK IGNITION SWITCH OK HARNESS WIRE 29A OK HARNESS WIRE 29C OK POSSIBLE PROBLEMS PARKING BRAKE SWITCH BAD BODY HARNESS WIRES BAD GLOW PLUG CONTROLLER BAD ALTERNATOR BAD HARNESS WIRE 2A BAD PROTECTIVE CONTROL BOX BAD IS LED 13 ON? IF ENGINE IS AT OPERATING TEMPERATURE, LED 13 WILL NOT COME ON. r OPTlONS 1. TRY IT. 2. VISUAL REASON FOR QUESTlON If this LED is not ON, that would indicate either malfunctioning ignition switch, damaged harness wires 29A and 29C, or malfunctioning PCB. IS LED 5 ON? VISUAL I REASON FOR QUESTION If this LED is not ON, that would indicate PCB malfunctions. IS LED 6 ON? if OPTIONS VISUAL BRAKE SWITCH AND/ REASON FOR QUESTION If this LED is not ON, that would indicate a parking brake switch malfunction or damage to body harness wires.