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TM9-2320-360-20-3
Section 4
TROUBLESHOOTING CHARTS
D. CHART -1 - INTERMITTENT CODE OR A SYMPTOM AND NO CODES
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-III was started at step START-1, page H-25 and you have now been referred here.
STEP/SEQUENCE
WHAT TO DO NEXT
C 1-1
Diagnosis by Symptom
Turn ignition off.
Go to appropriate result in the
next column based on engine
symptom.
Intermittent
code.
Engine cranks
but will not start.
Erratic performance
and No Codes.
No ‘Check Engine”
light during bulb
check.
“Check Engine”
light always on and
No Codes.
“Check Gauges”
light always on,
and No codes.
No data to
DDR.
No “Check Gauges”
light during bulb check.
Diagnostic request
switch inoperative.
Power Take-off (PTO)
inoperative.
Go to Chart 1, page H-40.
Go to Chart 2, page H-43.
Go to Chart 3, page H-63.
Go to Chart 4, page H-65.
Go to Chart 5, page H-71.
Go to Chart 6, page H-75.
Go to Chart 7, page H-79.
Go to Chart 8, page H-85.
Go to Chart 9, page H-91.
Go to Chart 10, page H-95.
H-40
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