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Page Title:
DDR DISPLAY READS "NO DDEC DATA RECEIVED" (CONT). |
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 TM 9-2320-364-20-1
A2 DDR DISPLAY READS "NO DDEC DATA RECEIVED" (CONT).
3.
KNOWN INFO
TEST OPTIONS
Visual inspection.
Circuit breakers OK.
Does CEL stay ON with
No open/short in DDL
connector.
vehicle harness connector
REASON FOR QUESTION
disconnected?
POSSIBLE PROBLEMS
CEL driver line wire 419 is
shorted to ground if CEL comes
Short in CEL driver line wire
ON and stays ON.
419.
Damaged DDEC ECM
connectors.
Go to Step 4 of this
NO
Fault.
YES
Repair wire 419 (see
schematic Fig 2-1)
or notify DS
Maintenance.
Verify repair, go to
Step 5 of this Fault.
4.
KNOWN INFO
TEST OPTIONS
WARNING
READ WARNING
Circuit breakers OK.
Visual inspection.
on Page 2-161
No open/short in DDL
connector.
REASON FOR QUESTION
No short in CEL driver line wire
Are DDEC ECM connector
419.
Damage to terminals and
and vehicle harness
connectors can affect signal to
connector MC18 free of
POSSIBLE PROBLEMS
DDEC ECM.
damage?
Damaged DDEC ECM
connectors.
Repair DDL connector
and vehicle harness
connector and/or
NO
terminals (Para
7-101). Verify repair,
go to Step 5 of this
Fault.
YES
Replace DDEC ECM
(Para 7-56).
Verify repair, go to
Step 5 of this Fault.
2-160
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