TM 10-3930-675-20-1
0041 00-7
BOOM IN/OUT TROUBLESHOOTING - CONTINUED
0041 00
Table 4. Error Code 161 - Extension Cylinder Boom IN Control, Component Failure
Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 161 - Extension Cylinder Boom IN
Control, Component Failure - Continued
8. Check continuity between
connector X159 pin 1 and
connector X158 pin 5.
If continuity is not present,
repair or replace connectors (WP
0111 00).
9. Enter DIAG SERVO 10
(13) menu and check current
of OUTPUT BOOM IN.
Current should be present
with joystick activated to
move boom in.
If current is not present, replace
ECU (790) (WP 0079 00).
Table 5. Error Code 163 - Extension Cylinder Boom OUT Control, Wiring Circuit Failure
Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 163 - Extension Cylinder Boom OUT
Control, Wiring Circuit Failure
1. Remove ECU (790) cover
from operators seat base and
slide ECU mounting tray out
(WP 0079 00).
2. Check ECU (790) connector
2 and tray grounding leads for
proper connection.
a. Connect
any
loose
or
disconnected
connections.
Push ECU mounting tray in
and install cover.
b. Repair
or
replace
any
damaged
connectors
(WP
0111 00). Push ECU mounting
tray in and install cover.
3. Check
voltage
(20-25V)
between connector X158 pin
7 and pin 8. If voltage is not
present,
perform
the
following continuity checks.
a. Check continuity between
ECU (790) connector 2 pin
5 and connector X158 pin 8
and between ECU (790)
connector 2 pin 10 and
connector X159 pin 1.
If continuity is not present,
repair or replace connectors (WP
0111 00).
DIAG SERVO
10(13)
OUTPUT
INPUT
BOOM IN 0mA 0mA
BOOM OUT 0mA 0mA
