TM 10-3930-675-24-1
HYDRAULIC SERVO SYSTEM ELECTRONIC CONTROL UNIT (ECU) (790) TROUBLESHOOTING
0036 00
THIS WORK PACKAGE COVERS
Error Code 125 - Memory Failure
Error Code 142 - Internal Communication Failure
Error Code 141 - Internal Communication Failure
INITIAL SETUP
References
TM 10-3930-675-10
Current Supply (A34738.0200) (WP 0048 00-31)
ECS Electrical Servo (A34648.0200) (WP 0048 00-
5)
NOTE
Refer to WP 0004 00 for additional troubleshooting guidance, information, and illustrations that
locate critical components.
Refer also to illustration at end of work package for component location.
Table 1. Error Code 125 - Memory Failure Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 125 - Memory Failure.
Place ignition switch in OFF
Replace ECU (790) if error code
is still present (WP 0080 00).
position for 30 seconds and then
back in ON position.
Table 2. Error Code 141 - Internal Communication Failure Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 141 - Internal Communication Place ignition switch in OFF
Replace ECU (790) if error code
is still present (WP 0080 00).
Failure.
position for 30 seconds and then
back in ON position.
