FAULT CODES DO, D3, D6, DA, DB, DD INTERNAL DECU FAULTS EXPANDED IN STRUCTIONS
Cycle DECU power to determine if fault is a DECU problem or was caused by an interrupt to both
reversionary power supplies.
An internal DECU fault exists. No further troubleshooting is possible.
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.