TM 5-3805-294-23-1
FIELD MAINTENANCE
ENGINE CONTROL UNIT (ECU) DOES NOT COMMUNICATE WITH SERVICE ADVISOR
INITIAL SETUP:
References (cont.)
Tools and Special Tools
Tool Kit, General Mechanic's: Automotive
Volume 2, WP 0169
(Volume 5, WP 0796, Table 2, Item 119)
Volume 2, WP 0179
Accessory Kit, MSD Electronic Equipment
Volume 2, WP 0218
(Volume 5, WP 0796, Table 2, Item 2)
Volume 3, WP 0312
Multimeter, Digital
Volume 3, WP 0369
(Volume 5, WP 0796, Table 2, Item 77)
Volume 3, WP 0375
Probe Set, Standard
Volume 4, WP 0504
(Volume 5, WP 0796, Table 2, Item 91)
Volume 4, WP 0508
Test Set, MSD Electronic Systems
Volume 4, WP 0509
(Volume 5, WP 0796, Table 2, Item 116)
Volume 4, WP 0511
Volume 4, WP 0516
Volume 4, WP 0521
Materials/Parts
Volume 4, WP 0589
Wire, Jumper
Volume 4, WP 0593
(Volume 5, WP 0792)
Volume 5, WP 0800
Personnel Required
Equipment Condition
Construction Equipment Repairer 91L (2)
Machine safely parked and shut down (TM
5-3805-294-10). (Volume 5, WP 0794)
References
Test Equipment Setup for MSD and Service
TM 5-3805-294-10 (Volume 5, WP 0794)
ADVISOR. (Volume 3, WP 0375)
TROUBLESHOOTING PROCEDURE
Table 1. Engine Control Unit (ECU) Does Not Communicate With Service Advisor.
Malfunction
Test or Inspection
Corrective Action
1.
Visually inspect all
1.
Connections
connections between
Between
Diagnostic Connector and
Diagnostic
MSD for proper connection.
Connector and MSD
Are Not Properly
(Volume 3, WP 0375)
Connected and
Fully Seated.
2.
Turn key switch to ON position,
1.
If connected properly, proceed
but DO NOT START ENGINE
to Malfunction 2.
(TM 5-3805-294-10). (Volume
2.
If not connected properly,
5, WP 0794)
connect connections properly.
(Volume 3, WP 0375) Connect
to Service ADVISOR. (Volume
3, WP 0375)
0124-1