TM 10-3930-675-20-1
0010 00-8
OVERLOAD PROTECTION TROUBLESHOOTING - CONTINUED
0010 00
Table 6. Error Code 135 - Left Lift Cylinder Piston Pressure Sensor or Circuit Failure
Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 135 - Left Lift Cylinder Piston
Pressure Sensor or Circuit Failure - Continued
If voltage is present, check
voltage at junction box X167
pin 21. Voltage should be 0.3-
10.8V depending on actual
hydraulic pressure.
If voltage is not present, replace
lift cylinder pressure sensor (WP
0101 00).
3. Remove ECU (790) cover
from operator’s seat base and
slide ECU mounting tray out
(WP 0079 00).
4. Check ECU (790) connector
1, connector X159, 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 at
connector
X159
pin
3.
Voltage should be 20-25V.
6. If voltage is present in step 5,
check continuity between
connector X159 pin 3 and
junction box X167 pin 16,
between connector X159 pin
4 and junction box X167 pin
17, and between connector
X159 pin 8 and junction box
X167 pin 20.
a. If continuity is not present,
repair or replace connectors
(WP 0111 00).
b. If problem persists, notify
SRA.
