TM 1-2840-252-23-3
G-33
FAULT CODES DO, D3, D6, DA, DB, DD INTERNAL DECU FAULTS EXPANDED IN STRUCTIONS
Step 1.
Cycle DECU power to determine if fault is a DECU problem or was caused by an interrupt to both
reversionary power supplies.
Step 3.
An internal DECU fault exists. No further troubleshooting is possible.
G-34
FAULT CODES D4, D5, D7, D8, D9, DC, DF INTERNAL DECU FAULTS EXPANDED INSTRUCTIONS
These codes indicate internal DECU problems. No further troubleshooting is possible.
G-69