Can heavy-duty winch control valve harness wire 1843 be repaired?
No - Replace heavy-duty winch control valve harness. (WP 0049)Test 42 - Does high idle operate?
Yes - Repair wire 1843 (refer to TM 9-2320-315-14&P). Test 42 - Does high idle operate?
TEST 12 - Are 22 to 28 vdc measured on wire 1843 at cab harness connector MC1, terminal D?
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.
Remove skid plate grille (refer to TM 9-2320-315-14&P).
Disconnect chassis harness connector MC1.
Start engine (refer to TM 9-2320-279-10).
Set PTO ENGAGE switch to ON position. (WP 0015)
Connect positive (+) probe of multimeter to wire 1843 at cab harness connector MC1, terminal D. Refer to