7. Set PTO ENGAGE switch to OFF position. (WP 0015)
8. Shut OFF engine (refer to TM 9-2320-279-10).
Are 22 to 28 vdc measured on wire 1843 at chassis harness connector MC41, terminal 1?
No - Test 12 - Are 22 to 28 vdc measured on wire 1843 at cab harness connector MC1, terminal D?
Yes - Test 11 - Can heavy-duty winch control valve harness wire 1843 be repaired?
TEST 11 - Can heavy-duty winch control valve harness wire 1843 be repaired?
Ensure electrical power is off prior to working on all electrical connections. Failure to comply
may result in injury or death to personnel.
Remove all jewelry such as rings, ID tags, bracelets, etc. prior to working on or around
vehicle. Jewelry and tools can catch on equipment, contact positive electrical circuits, and
cause a direct short, severe burns, or electrical shock. Failure to comply may result in injury
or death to personnel.
Wire is not repairable if damage cannot be visually located or if prior wire repair has already
reduced length of wire. Wire is not repairable if after repair, wire is too short to reach its
1. Visually inspect wire 1843 from connector MC41, terminal 1 to wire 1843/1854 splice for repairability. Refer to