Lycoming TEO-540-C1A Maintenance Manual page 458

Fault ID 122
Fault
Local Channel Identifier Fault
Description
This fault indicates the GPIO pin changed values during application execution possibly
Root Cause
due to a hardware issue or memory corruption
1. Contact Lycoming Personnel to have the ECU reprogrammed.
2. Clear service fault codes. Start the engine. Is the fault still active? If yes, replace the ECU.
Fault ID 123
Fault
Local Channel Identifier Fault
Description
This fault indicates Unit Factory Calibration area is corrupt OR the unit serial number in
Root Cause the Unit Factory Calibration area has maxed out on the greatest number possible due to a
possible hardware issue. The fault may be inactive upon reprogramming the unit
1. Contact Lycoming Personnel to have the ECU reprogrammed.
2. Clear service fault codes. Start the engine. Is the fault still active? If yes, replace the ECU.
Fault ID 124
Fault
Description
Root Cause
Fault ID 125
Fault
Description
Root Cause
Fault ID 126
Fault
Description
Root Cause
Fault ID 127
Fault
Description
Root Cause
Appendix D
Page 428
Fault Group 16
Troubleshooting Steps
Fault Group 16
Troubleshooting Steps
Fault Group 16
Troubleshooting Steps
Fault Group 16
Troubleshooting Steps
Fault Group 16
Troubleshooting Steps
Fault Group 16
Troubleshooting Steps
TEO-540-C1A Engine Maintenance Manual
Fault Name
[FAULT: local channel Id]
Fault Lamp
[FAULT: Unit serial number
Fault Name
invalid]
Fault Lamp
Fault Name
-Reserved-
Fault Lamp
Fault Name
-Reserved-
Fault Lamp
Fault Name
-Reserved-
Fault Lamp
Fault Name
-Reserved-
Fault Lamp
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November 2018