TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
21. REMOTE CONTROL LIGHT INOPERATIVE, ERROR CODE 25, (MODEL B ONLY)
(continued).
2.
TEST OPTIONS
KNOWN INFO
Are 22-28 volts measured
Error Code, EC 01 and/or
Voltage Tests.
at the cab interface
EC 25.
REASON FOR QUESTION
wiring harness connector
Remote control box light
(J2), position "2" and
bulb OK.
Power to activate the
position "3"?
remote control light circuit
POSSIBLE PROBLEMS
is supplied from the cab
digital control box to the
Cab digital control box
digital controller wiring
faulty.
harness via this harness.
Cab interface wiring
Faults in this harness will
harness faulty.
prevent operation from the
Digital controller wiring
cab digital control box.
harness faulty.
Digital control box faulty.
Repair or replace
cab interface
NO
wiring harness
YES
4-434.20
1
Change 1
