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TM9-2320-360-20-3
Section 4
TROUBLESHOOTING CHARTS
E. FLASH CODE:
52
J1587 CODE:
S254 12 ANALOG TO DlGITAL (A/D) CONVERSION FAILURE
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, pg H-25 and you have now been referred here.
STEP/SEQUENCE
52-1
Multiple Cod. Chock
RESULT
WHAT TO DO NEXT
l Were there any other codes
besides 254/12?
Yes.
No.
Service other codes first.
Replace ECM (para 7-29.1). Then
go to START-1, pg H-25.
H-223
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