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Page Title:
DDR DISPLAY READS "NO DDEC DATA RECEIVED". |
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 TM 9-2320-364-20-1
2-13. DDEC II TROUBLESHOOTING (CONT).
A2 DDR DISPLAY READS "NO DDEC DATA RECEIVED".
INITIAL SETUP
Tools and Special Tools
Equipment Condition
Tool Kit, General Mechanic's: Automotive
Engine OFF, (TM 9-2320-364-10)
(Item 74, Appendix G)
Parking brake applied, (TM 9-2320-364-10)
STE/ICE-R (optional) (Item 3, Appendix G)
Wheels chocked, (TM 9-2320-364-10)
Top engine access cover opened,
DDEC Repair Kit (Item 15, Appendix G)
Multimeter (Item 44, Appendix G)
(TM 9-2320-364-10)
Reader, Diagnostic (Item 53, Appendix G)
References
TM 9-2320-364-10
TM 9-4910-571-12&P
START
1.
KNOWN INFO
TEST OPTIONS
CHECK ENGINE light (CEL)
Are DDEC circuit breakers,
Visual inspection.
comes ON and stays ON.
CB11, CB13, CB22 and CB23,
set?
REASON FOR QUESTION
POSSIBLE PROBLEMS
DDEC will not operate properly
Tripped circuit breakers.
if breakers are tripped or
Open in DDL connector.
defective. If breakers continue
Short in CEL driver line wire
to trip, a short or ground exists
419.
in wire 240 or 241.
Damaged DDEC ECM
connectors.
Reset circuit breakers.
NO
Verify repair, go to
Step 5 of this Fault.
YES
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