Troubleshooting Guide Abbreviations And Acronyms - Lycoming TEO-540-C1A Maintenance Manual

TEO-540-C1A Engine Maintenance Manual
The Troubleshooting Guide recommends corrective action for the fault codes to remove the root
cause which will ultimately enable the fault code to be cleared. In some instances, multiple related
fault codes can display if they have a common or associated root cause. In these cases, a logic fault
tree is given to help isolate the root cause.
WARNING ENGINE MOTORING AND OPERATION IS REQUIRED DURING
TROUBLESHOOTING. KEEP CLEAR OF THE ROTATIONAL RADIUS OF
THE PROPELLER TO PREVENT PERSONNEL INJURY OR DEATH.
CAUTION DO NOT REMOVE POWER FROM THE ENGINE WHILE DOWNLOADING
SERVICE OR TBO HISTORY, OR CLEARING SERVICE FAULTS.
DAMAGE TO THE ECU MEMORY CAN OCCUR.
NOTICE: If a satisfactory outcome is not achieved using this troubleshooting guide, contact
Lycoming Engines product support.

TROUBLESHOOTING GUIDE ABBREVIATIONS AND ACRONYMS

ACJ Auto Cold Junction
CAN Controller Area Network
CCP CAN Configuration Protocol
CHT Cylinder Head Temperature
CIP Compressor Inlet Pressure
CRC Cyclic Redundancy Check
ECU Engine Control Unit
EGT Exhaust Gas Temperature
EOP Engine Oil Pressure
EOT Engine Oil Temperature
FFL Fault Found
FMPLL Frequency Modulation Phase Lock Loop
FPP Fuel Pump Pressure
FPU Floating Point Unavailable
FRP Fuel Rail Pressure
FST Field Service Tool
© 2018 Avco Corporation. All Rights Reserved
November 2018
APPENDIX D
TROUBLESHOOTING GUIDE
A
C
E
F
Appendix D
Page 395