TM 10-3930-675-20-1
0010 00-2
OVERLOAD PROTECTION TROUBLESHOOTING - CONTINUED
0010 00
Table 2. Error Code 131 - Boom Extension Sensor or Circuit Failure Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 131 - Boom Extension Sensor or
Circuit Failure
1. Remove cover at rear of boom
and inspect boom extension
sensor and steel wire for
damage. Ensure that steel
wire easily pulls out and
retracts.
2. Remove cover from junction
box X169, located on right
side of boom and check
voltage between pin 2 and pin
3. Voltage should be 10V.
If voltage is present, check
voltage between junction box
X169 pin 1 and pin 3. Voltage
should
be
0.3-9.5V
depending on position of
boom.
If voltage is not present, replace
boom extension sensor (WP
0099 00).
3. Remove ECU (790) cover
from operators seat base and
slide ECU mounting tray out
(WP 0079 00).
4. Check ECU (790) connector
1 and ECU 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.
5. Perform
voltage
check
between connector X157 pin
2 and pin 3. Voltage should be
10V.
a. If voltage is present, check
continuity
between
connector X157 pin 2 and
junction box X169 pin 2,
between connector X157
pin 3 and junction box
X169 pin 3, and between
connector X157 pin 1 and
junction box X169 pin 1.
If continuity is not present,
repair or replace connectors (WP
0111 00).
DIAG SERVO
1(13)
SYSTEM POWER
24.00V
POWER RI CAN
24.00V
POWER LE CAN
24.00V
10V REF OUT
10.00V