TM 10-3930-675-20-1
0041 00-9
BOOM IN/OUT TROUBLESHOOTING - CONTINUED
0041 00
Table 6. Error Code 164 - Extension Cylinder Boom OUT Control, Component Failure
Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 164 - Extension Cylinder Boom OUT
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
from
boom
out
solenoid 6006. Error code 163
will now show. Perform
voltage check at solenoid
6006 connector.
If 20-25V is present at solenoid
6006 connector, replace boom
out 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 6006 pin 1 and pin
2 and between connector
6004 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 8 and
ECU (790) connector 2 pin 5
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
