2. Connect negative (-) probe of multimeter to a known good ground.
Heavy-duty winch control valve IN and OUT solenoid connectors are disconnected to
prevent unexpected operation of heavy-duty winch.
Operate remote control lever to the OUT position. (WP 0010)
Multimeter should display a reading between 22 and 28 vdc. Note reading.
Release remote control lever.
Set PTO ENGAGE switch to OFF position. (WP 0015)
Shut off engine (refer to TM 9-2320-279-10).
Are 22 to 28 vdc measured on white wire at heavy-duty winch remote control unit right switch, NO terminal when
heavy-duty winch remote control lever is operated to the OUT position?
No - Replace heavy-duty winch remote control unit right switch. (WP 0047)Test 20 - Does winch operate with
Yes - Replace heavy-duty winch control valve. (WP 0072)Test 20 - Does winch operate with remote control?