TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
16.1 MAIN FRAME, HOOK ARM, AND WINCH DO NOT OPERATE (MODEL B ONLY)
(continued).
KNOWN INFO
5.
TEST OPTIONS
Error Code, EC 01, EC
Continuity Test.
Is continuity measured
08 and/or EC 19.
on the free flow valve
Quick-disconnect
solenoid harness?
REASON FOR QUESTION
couplings installed
properly.
Power to activate the free
Hydraulic lines, hoses,
flow valve solenoid is
or fittings OK.
transferred from the
Cab digital control box
digital control box to the
OK.
free flow valve solenoid
Cab interface wiring
via this harness.
harness OK.
POSSIBLE PROBLEMS
Digital controller wiring
harness faulty.
Replace digital
Free flow valve faulty.
controller wiring
Digital control box faulty.
NO
harness (para 4-
YES
4-386.10
Change 1
94
