Lycoming TEO-540-C1A Maintenance Manual page 535

TEO-540-C1A Engine Maintenance Manual
Fault ID 387
Fault Software calibration version timestamp
Description discrepancy fault
This fault indicates timestamp entry contains different application software version
Root Cause
potentially due to a memory corruption
Fault ID 388
Fault Software program version timestamp
Description discrepancy fault
This fault indicates timestamp entry contains different factory unit calibration version
Root Cause
potentially due to a memory corruption
Fault ID 389
Fault
Flash SPI erase fail fault
Description
This fault indicates a failure to erase the flash memory potentially due to flash memory
Root Cause
corruption.
Fault ID 390
Fault
Flash SPI read fail fault
Description
This fault indicates a failure to read the flash memory potentially due to flash memory
Root Cause
corruption.
Fault ID 391
Fault
Flash SPI write fail fault
Description
This fault indicates a failure to write to the flash memory potentially due to flash memory
Root Cause
corruption.
1. With Ignition switch in OFF position, remove ECU power by pulling the ECU circuit breaker. Wait 10s
before resetting. Is fault active? If no, go to step 3. If yes, go to step 2.
2. Contact Lycoming Engines to correct the calibration files and reflash the ECU. Is fault still active? If
no, go to step 3. If yes, replace the ECU.
3. Clear Service faults using the FST by following the steps outlined in the "Access the Field Service
Tool" section in Appendix C or the latest revision of SSP-118.
© 2018 Avco Corporation. All Rights Reserved
November 2018
Fault Group 49
Fault Group 49
Fault Group 49
Fault Group 49
Fault Group 49
Troubleshooting Steps for Faults 387 thru 391
[FAULT: Timestamp Software
Fault Name
Calibration Version Discrepancy]
Fault Lamp
[FAULT: Timestamp Software
Fault Name
Program Version Discrepancy]
Fault Lamp
[FAULT: Flash SPI Erase Fail]
Fault Name
Fault Lamp
[FAULT: Flash SPI read Fail]
Fault Name
Fault Lamp
[FAULT: Flash SPI write Fail]
Fault Name
Fault Lamp
None
None
None
None
None
Appendix D
Page 505