Appendix D
© 2018 Avco Corporation. All Rights Reserved
Page 408
November 2018
TEO-540-C1A Engine Maintenance Manual
Fault ID
32
Fault Group
5
Fault Name
[FAULT: 100ms task overrun]
Fault
Description
Application 100ms task overrun
Fault Lamp
None
Root Cause
The fault indicates a delay in execution/completion of a 100ms periodic task before the
request/scheduling of the next 100ms periodic task due to possible hardware interrupts
Troubleshooting Steps
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
33
Fault Group
5
Fault Name
[FAULT: 10ms task overrun]
Fault
Description
Application 10ms task overrun
Fault Lamp
None
Root Cause
The fault indicates a delay in execution/completion of a 10ms periodic task before the
request/scheduling of the next 10ms periodic task due to possible hardware interrupts
Troubleshooting Steps
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
34
Fault Group
5
Fault Name
[FAULT: 1ms task overrun]
Fault
Description
Application 1ms task overrun
Fault Lamp
None
Root Cause
The fault indicates a delay in execution/completion of a 1ms periodic task before the
request/scheduling of the next 1ms periodic task due to possible hardware interrupts
Troubleshooting Steps
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
35
Fault Group
5
Fault Name
[FAULT: TASK OVERRUN]
Fault
Description
Application task overrun causing reset
Fault Lamp
None
Root Cause
The fault indicates more consecutive tasks overruns than allowed due to possible hardware
interrupts
Troubleshooting Steps
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.
