TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
14. MAIN FRAME DOES NOT UNLOAD IN MANUAL MODE (continued).
KNOWN INFO
3.
TEST OPTIONS
Continuity Test.
Error Code, EC 02 and/
Is continuity measured
or EC 17.
on the remote control
Cab controls OK.
unit connector (J9),
REASON FOR QUESTION
between positions "L"
To verify the function of
and "E" and between "L"
the remote control unit.
and "H", with the main
Remote control unit
If there is an open circuit
frame switch in the
faulty.
between either of the two
UNLOAD position?
Remote control cable
test points, the remote
faulty.
control unit is faulty.
Main junction box wiring
faulty.
Linking harness faulty.
Repair remote
NO
control (para 4-73)
YES
4-272
Change 1
