Section 4
TROUBLESHOOTING
E. CODE 48 . LOW FUEL PRESSURE
NOTE — This chart is only to be used if:
TM 9-2320-363-20-1
CHARTS
1 ) All basic mechanical checks and physical inspections have been performed with no problem found, and
2) Dlagnosis of DDEC-II was started at step Start-1 (page 3-121 ) and you have now been referred here.
STEP/SEQUENCE
48.1 Multiple Code Check
l Were there any other codes besides
Code 48?
RESULT
WHAT TO DO NEXT
-Service other codes first.
- Code 48 indicates that there
was an engine running condition
where the fuel spill pressure
was lower than it should be.
3-309
