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TM 9-2320-364-20-3
2-2304
5. LOSS OF SUPPLY VOLTAGE TO MAIN JUNCTION BOX.
INITIAL SETUP
1.
Is continuity measured on
wire 1472 at harness
connector MC81, terminal F
and main junction box
terminal 9?
Repair wire 1472
(see schematic
Fig 2-52) or notify
DS Maintenance.
Verify repair, go to
Step 2 of this Fault.
START
NO
LHS lamp operates indicating
LHS control assy is
receiving input voltage.
Wire 1472 faulty.
LHS control assy faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
STE/ICE-R #91.
If wire 1472 is loose, faulty or
shorted to ground, 22 to 28 vdc
will not be present at main
junction box terminal 9.
2-28. LOAD HANDLING SYSTEM (LHS) TROUBLESHOOTING (CONT).
Tools and Special Tools
Tool Kit, General Mechanic’s: Automotive
(Item 74, Appendix G)
STE/ICE-R (optional) (Item 3, Appendix G)
Multimeter (Item 44, Appendix G)
Jumperwire
Equipment Condition
Engine OFF, (TM 9-2320-364-10)
Parking brake applied, (TM 9-2320-364-10)
Wheels chocked, (TM 9-2320-364-10)
References
TM 9-2320-364-10
TM 9-4910-571-12&P
WARNING
Materials/Parts
Lockwasher (4) (Item 180, Appendix F)
Replace LHS control
assy (Para 7-40).
Verify repair, go to
Step 2 of this Fault.
YES
Read WARNING
on Page 2-2305
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