Lycoming TEO-540-C1A Maintenance Manual page 500

Fault ID 268
Primary: Actuator Supply Voltage
Fault
Description Secondary: Actuator Supply Voltage
This fault occurs if the Engineering value of the measured parameter is outside the expected
window defined by the calibratable Highest and Lowest Valid Engineering Values.
Root Cause
The Highest and Lowest possible engineering values define the range of values that can be
expected for the entire engine operating envelope. Any value observed outside this
envelope is flagged as a sensor range fault.
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 Power Box.
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 Power Box.
Fault ID 269
Fault
Description
Root Cause
Fault ID 270
Fault
Description
Root Cause
Fault ID 271
Fault
Description
Root Cause
Appendix D
Page 470
Fault Group
Range Fault
Range Fault
Troubleshooting Steps
Fault Group
Troubleshooting Steps
Fault Group
Troubleshooting Steps
Fault Group
Troubleshooting Steps
TEO-540-C1A Engine Maintenance Manual
34 Fault Name
Fault Lamp
34 Fault Name
Fault Lamp
34 Fault Name
Fault Lamp
34 Fault Name
Fault Lamp
© 2018 Avco Corporation. All Rights Reserved
[FAULT: actuator supply voltage
range]
TLO
-Reserved-
TLO
-Reserved-
TLO
-Reserved-
TLO
November 2018