TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
18. BAP WINCH DOES NOT WIND OUT (MODEL B ONLY).
NOTE
The digital controller and the cab digital control box are not
repairable, therefore, it is necessary to test the digital controller
and cab interface wiring harnesses, switches, solenoids, and
other components to identify possible faults other than the digital
controller and the digital cab controller.
9.
TEST OPTIONS
KNOWN INFO
Voltage Test.
Error Code, EC 06 and/or
Are 22-28 volts
EC 17.
measured at the cab
REASON FOR QUESTION
Quick-connect couplings
interface wiring
OK.
Power to activate the
harness connector
Hydraulic lines, hoses,
winch out solenoid is
(J2), position "2" and
or fittings OK.
supplied from the cab
position "3"?
digital control box to the
POSSIBLE PROBLEMS
Digital controller wiring
harness via this harness.
Cab digital control box
Faults in this harness will
faulty.
prevent operation from the
Cab interface wiring
cab digital control box.
harness faulty.
Digital controller wiring
harness faulty.
Winch out valve faulty.
Digital control box faulty.
Repair or replace
cab interface
NO
wiring harness
YES
4-402.2
Change 1
4
