TM 10-3930-675-24-1
OVERLOAD PROTECTION TROUBLESHOOTING - CONTINUED
0011 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 1. Look inside the small a. Remove rear boom cover and
Circuit Failure.
inspection hole at the rear of
reattach steel cable to boom
the boom and check if the
extension, inspect sensor and
extension steel cable is
harness for damage (WP 0100
attached and the harness is
00).
connected.
b. Reconnect
disconnected
harness (WP 0100 00).
c. Replace
damaged
boom
extension sensor (WP 0100
DIAG SERVO
1(13)
00).
SYSTEM POWER
24.00V
POWER RI CAN
24.00V
POWER LE CAN
24.00V
10V REF OUT
10.00V
2. Check boom wear plates and a. Clean boom wear plate
for sticking boom extension or
surfaces and replace any worn
retraction while operating. (A
or damaged wear plates (WP
sticking boom, especially in
0146 00).
the fully lowered position, will b. Check boom system hydraulic
active ERROR CODE 131.)
pressures (WP 0188 00) and
perform hydraulic system
00).
3. Enter "DIAG SERVO 7(13) in a. If no voltage (<1 to 4V) is
the diagnostic menu and check
found, check voltage (10V) at
length sensor voltage. The
X157 between pins 2 and 3
voltage should be around <1 to
4V retracted to extended.
b. If no voltage (10V) is found at
X157 between pins 2 and 3,
A15514A, A15514B,
A15514C, A15513D,
A15513B, A15513A, and
c. Repair or replace damaged
wires or connectors (WP 0113
00).
4. Inspect ECU (790) connector 1 a. Repair or replace damaged
pins 13, 26, and 27 and
wires or connectors (WP 0113
connector for damage.
00).
b. Replace damaged ECU (790)
(WP 0080 00).
0011 00-2