STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
TM 9-2320-363-20-1
Section 4
TROUBLESHOOTING CHARTS
C. CEL - FIRST CHART FOR DIAGNOSIS OF DDEC-III WHEN NO DDR IS AVAILABLE
NOTE: Although this section will help you get started, later sections of the Troubleshooting Guide may require using a
DDR.
CEL-1
Note "Check Engine"
Light
Turn ignition on while at the same
Light comes on
Go to CEL-2.
time observing the "Check
and stays on.
Engine" light.
Light comes on for up to
Go to CEL-2 .
5 seconds, then goes out.
Light is off.
Go to Chart 4, page 3-345.85.
Flashing light.
Go to CEL-8.
CEL-2
Read Codes
Turn ignition on.
Flashes out
Go to CEL-3.
Depress and hold the diagnostic
codes.
request switch (or button).
"Check Engine"
Go to Chart 6, page 3-345.95.
light is always on but
doesn't flash out codes.
"Check Engine"
Go to CEL-6.
light never comes on.
CEL-3
Follow Codes
Note and record code(s).
Code 52, 110, 175/3,
Follow appropriate diagnostic
174/3, or 190/0.
charts for the code(s) received.
(See Index).
Any codes except
Go to CEL-4.
52,110,175/3,
174/3, or 190/0.
No codes.
If drive complaint persists, go to
Chart 1, page 3-345.57.
Change 3 3-345.51
