TEST 21 - Are 22 to 28 vdc measured on wire 1516 at chassis harness connector MC25, terminal 2?
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.
Connect chassis harness connector MC41 to heavy-duty winch valve control harness.
Disconnect chassis harness connector MC25.
Start engine (refer to TM 9-2320-279-10).
Set PTO ENGAGE switch to ON position. (WP 0015)
Set heavy-duty winch control station HIGH IDLE ON/OFF switch to ON position. (WP 0015)
Connect positive (+) probe of multimeter to wire 1516 at chassis harness side of connector MC25, terminal 2.
Refer to schematics.
7. Connect negative (-) probe of multimeter to a known good ground.
8. Multimeter should display a reading between 22 and 28 vdc. Note reading.
9. Set heavy-duty winch control station HIGH IDLE ON/OFF switch to OFF position. (WP 0015)