Field Service Tool - Software Problems - Lycoming TEO-540-C1A Maintenance Manual

TEO-540-C1A Engine Maintenance Manual
Table 1 shows the more common and recurring problems, causes, and corrective actions. Continue
from the simplest to the most complex possible causes.
Problem
Software will not load
on the laptop.
Laptop will not
interface with the ECU.
After opening the FST
program, the "ECU
Connection Status"
indicator in the lower
left corner of the screen
reads "Not Connected".
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November 2018

FIELD SERVICE TOOL - SOFTWARE PROBLEMS

Corrective Action Guide
Cause
Laptop operating system is
not compatible with Field
Service Tool software.
Aircraft power is off.
Cable is not connected.
Cable is damaged or broken.
CAN Adapter is not
operating correctly.
There is no communication
between the laptop and the
ECU.
Table C-1
Make sure the laptop has Windows 7, 8, 8.1,
or 10 operating system installed.
Replace the laptop if necessary.
Turn the aircraft power on.
Check all cable connections; make sure all
plugs are correctly installed.
Contact Lycoming for a replacement iE
Service Cable (ST-528).
Contact Lycoming for a replacement iE
Field Service Tool CAN Interface (ST-530).
Examine the cable and connection between
the CAN Adapter and the ECU.
1. Make sure the connections are secure.
2. Replace a damaged cable.
Corrective Action
Appendix C
Page 393
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