TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
Page 284 of 1205
TM 9-2320-387-24-l PROTECTIVE CONTROL BOX DIAGNOSTIC FLOWCHART _ KNOWN INFO BA?TERlESOK LEAD 578 GROUND OK IGNITION SWITCH OK HARNESS WIRE 29A OK HARNESS WIRE 29C OK PARKING BRAKE SWITCH OK BODY HARNESS WIRES OK POSSIBLE PROBLEMS ALTERNATORBAG HARNESS WIRE 2A BAD PROTECTIVE CONTROL BOX BAD KNOWN INFO I BATTERIES OK LEAD 578 GROUND OK IGNITION SWITCH OK HARNESS WIRE 29A OK HARNESS WIRE 29C OK PARKING BRAKE SWKCH OK BODY HARNESS WIRES OK POSSIBLE PROBLEMS t ALTERNATOR BAD HARNESS WIRE 2A BAD PROTECTlVE CONTROL BOX BAD KNOWN INFO BAtTERIES OK IGNlTlON SWITCH OK HARNESS WIRE 29A OK HARNESS WIRE 29C OK PARKING BRAKE SWITCH OK BODY HARNESS WIRES OK POSSIBLE PROBLEMS ALTERNATORBAG LEAD578 GROUND BAD HARNESS WIRE 2A BAD PROTECTlVE CONTROL BOX BAD DOES LED 10 MOMENTARILY COME ON THEN STAY OFF? PROTECTIVE ;T OPllONS VISUAL 1 TES 1 REASON FOR QUESTION If this LED is not ON, that would indicate a PCB malfunction. WITH THE IGNITION SWITCH IN THE RUN (ENGINE RUNNING) 2. VISUAL POSITION, ARE LEDs 2,3,4,5, AND 8 ON? - REASON FOR QUESTION If these LEDs are not ON, that would indicate a PCB malfunction. IS LED 7 ON? T OPTIONS VISUAL REASON FOR QUESTION If this LED is not ON, that would indicate a bad connection to ground. /_ 2-226