Section 4
TM 9-2320-363-20-1
TROUBLESHOOTING CHARTS
E. CODE 51 l EEPROM FAILURE (EEPROM = ELECTRICALLY ERASEABLE, PROGRAMMABLE READ
ONLY MEMORY)
NOTE - This chart is only to be used if:
1) All basic mechanical checks and physical inspections have been performed with no problem found, and
2) Diagnosis of DDEC-II was started at step Start-1 (page 3-121) and you have now been referred here.
STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
. An error has been detected in the
Replace ECM, page 4-192.
EEPROM in the ECM.
NOTE-This code is historical only and forces backup operation.
3-311
