TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
17. BAP WINCH DOES NOT OPERATE( MODEL B ONLY) (continued).
NOTE
The digital controller and the cab control box are not repairable,
therefore, it is necessary to test the digital controller and cab
interface wiring harnesses, switches, solenoids, and other com-
ponents to identify possible faults other than the digital controller
and the digital cab controller.
5.
KNOWN INFO
TEST OPTIONS
Error Code, EC 17.
Continuity Tests.
Is there continuity
Quick-connect couplings
measured at the digital
REASON FOR QUESTION
OK.
control wiring harness
Hydraulic lines, hoses,
(J3)?
If there is no continuity
or fittings OK.
at the designated
Cab digital control box
position on the digital
OK.
control wiring harness,
Cab interface wiring
the 24 volt power from
harness OK.
the cab digital control
box does not reach the
POSSIBLE PROBLEMS
winch in solenoid.
Digital controller wiring
harness faulty.
Winch in valve faulty.
Winch out valve faulty.
Digital control box faulty.
Repair or replace
digital controller
NO
wiring harness
YES
4-390.6
6
Change 1
