TM 10-3930-675-20-1
0041 00-6
BOOM IN/OUT TROUBLESHOOTING - CONTINUED
0041 00
Table 4. Error Code 161 - Extension Cylinder Boom IN Control, Component Failure Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 161 - Extension Cylinder Boom IN
Control, Component Failure
1. Remove ECU (790) cover
from operator’s 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. Move
operator’s
cab
to
transport position and remove
transmission
rear
access
cover (WP 0135 00).
4. Disconnect electrical con-
nector 6007 from boom in
solenoid. Error code 160 will
now show. Perform voltage
check at connector 6007.
If 20-25V is present at connector
6005, replace boom in solenoid
(WP 0169 00).
5. Ensure that ignition switch is
in OFF position. Disconnect
connector
X158
located
under driver’s seat.
6. Check continuity between
connector 6007 pin 1 and pin
2. Check continuity between
connector 6005 pin 1 and
chassis and connector 6005
pin 2 and chassis.
a. If continuity is present, repair
or replace connectors (WP
0111 00).
b. If wiring harness must be
replaced, notify SRA.
7. Check continuity between
connector X158 pin 6 and
ECU (790) connector 2 pin
12. Check continuity 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
