Lycoming TEO-540-C1A Maintenance Manual page 517

TEO-540-C1A Engine Maintenance Manual
Fault ID 317
Fault
TBO time invalid fault
Description
This fault indicates TBO time is invalid possibly due to a data logger fault or EEPROM
Root Cause
memory 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 2. If yes, go to step 3.
2. 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.
3. Set ignition switch to on, do not start engine, complete step 2. Is fault still active? If no, sequence
complete. If yes, replace the ECU.
Fault ID 318
Fault
Description
Root Cause
Fault ID 319
Fault
Description
Root Cause
Fault ID 320
Fault
SH priority 1 corrupt record fault*
Description
Root Cause This fault indicates a memory corruption in the priority 1 service history rolling buffer
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 2. If yes, go to step 3.
2. 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.
3. Set ignition switch to on, do not start engine, complete step 2. Is fault still active? If no, sequence
complete. If yes, replace the ECU.
*NOTE: This fault does not cause any performance or operational limitations.
© 2018 Avco Corporation. All Rights Reserved
November 2018
Fault Group 40
Troubleshooting Steps
Fault Group 40
Troubleshooting Steps
Fault Group 40
Troubleshooting Steps
Fault Group 41
Troubleshooting Steps
Fault Name
[FAULT: TBO time invalid]
Fault Lamp
-Reserved-
Fault Name
Fault Lamp
Fault Name -Reserved-
Fault Lamp
[FAULT: SH Priority 1 Corrupt
Fault Name
Record]
Fault Lamp
None
None
None
None
Appendix D
Page 487