Lycoming TEO-540-C1A Maintenance Manual page 429

TEO-540-C1A Engine Maintenance Manual
Fault ID
Fault
Check stop Reset
Description
Root Cause This fault indicates a failure of the FMPLL feature on the processor
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, replace the ECU.
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. If fault repeats, replace the ECU.
Fault ID
Fault
External Watchdog Reset
Description
Root Cause External Watchdog Reset indicates the reset pin on the microcontroller was asserted
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, replace the ECU.
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. If fault repeats, replace the ECU.
Fault ID
Fault
Software Reset
Description
Root Cause This fault indicates the software requested a system reset
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, replace the ECU.
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. If fault repeats, replace the ECU.
Fault ID
Fault
Stack monitor overrun
Description
Root Cause This fault indicates the software has exceeded its Cache memory
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, replace the ECU.
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. If fault repeats, replace the ECU.
© 2018 Avco Corporation. All Rights Reserved
November 2018
4 Fault Group
Troubleshooting Steps
5 Fault Group
Troubleshooting Steps
6 Fault Group
Troubleshooting Steps
7 Fault Group
Troubleshooting Steps
1 Fault Name
Fault Lamp
1 Fault Name
Fault Lamp
1 Fault Name
Fault Lamp
1 Fault Name
Fault Lamp
[FAULT: Check stop Reset]
None
[FAULT: Watchdog Reset]
None
[FAULT: Software Reset]
None
[FAULT: Stack Monitor Overrun]
None
Appendix D
Page 399