Section 4
TROUBLESHOOTING
TM 9-2320-363-20-1
CHARTS
E. CODE 53. EEPROM FAILURE AFFECTING CODE LOGGING (EEPROM = ELECTRONICALLY
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
l An error has been detected in the
Replace the ECM, page 4-192.
EEPROM in the ECM which will
cause it to not log codes correctly
or at all.
3-315
