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Page Title:
CODES 61-68 INJECTOR RESPONSE TIME TOO LONG. |
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 TM 9-2320-364-20-1
2-13. DDEC II TROUBLESHOOTING (CONT).
A4 CODES 61-68 INJECTOR RESPONSE TIME TOO LONG.
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)
Personnel Required
Two
References
TM 9-2320-364-10
TM 9-4910-571-12&P
START
1.
KNOWN INFO
TEST OPTIONS
CHECK ENGINE light (CEL)
DDR TEST.
Are Codes 61 through 68 the
comes ON and stays ON.
only codes displayed on
REASON FOR QUESTION
DDR?
POSSIBLE PROBLEMS
Isolate Fault.
Injector response times
incorrect.
Open in wires 619 and/or 620.
Short in wires 619 and/or 620.
Short in wires 611 through 618.
Faulty injectors.
Damaged terminals.
DDEC ECM faulty.
Tripped DDEC circuit breakers.
Short in bank A or bank B
Service other codes
wires 240 and/or 241.
NO
first. Go to Fault
Open in bank A or bank B
Index (Table 2-16).
wires 240 and/or 241.
Open in ground line wire 150.
Open in injector return lines
wires 619 and/or 620.
YES
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