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Page Title:
NO DATA LINK AND LAMP CHECK OK. |
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 TM 9-2320-364-20-1
2-13. DDEC II TROUBLESHOOTING (CONT).
C2 NO DATA LINK AND LAMP CHECK OK.
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)
DDEC Repair Kit (Item 15, Appendix G)
Top engine access cover opened,
Multimeter (Item 44, Appendix G)
(TM 9-2320-364-10)
Reader, Diagnostic (Item 53, Appendix G)
Remover, Connector (Item 55, Appendix G)
Jumperwire
References
TM 9-2320-364-10
TM 9-4910-571-12&P
START
1.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Lamp check OK, no data link or
Visual inspection.
on Page 2-433
no DDEC data received.
REASON FOR QUESTION
POSSIBLE PROBLEMS
Do codes flash out on CHECK
To isolate fault location.
ENGINE light with jumperwire
Open in diagnostic request line.
installed in DDL connector?
Damaged DDEC ECM
connectors.
Open in data line.
Short in data line.
DDR fuse faulty.
Short to ignition and ground.
Go to Step 2 of this
NO
Fault
YES
Go to Step 4 of this
Fault.
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