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Page Title:
CODES 61-68 INJECTOR RESPONSE TIME TOO LONG (CONT). |
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 TM 9-2320-364-20-1
A4 CODES 61-68 INJECTOR RESPONSE TIME TOO LONG (CONT).
8.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
CHECK ENGINE light (CEL)
Signal test.
on Page 2-365
comes ON and stays ON.
Injector response times OK.
REASON FOR QUESTION
Only 1 code displayed on DDR.
No open in wires 619
Does test light fail to illumi-
Injector may be faulty if test light
and 620.
nate while engine is being
illuminates while engine is being
No short in wires 619
cranked.
cranked?
and 620.
No short in wires 611
through 618.
POSSIBLE PROBLEMS
Faulty injectors.
Notify DS
Damaged terminals.
NO
Maintenance.
DDEC ECM faulty.
Injector faulty.
Tripped DDEC circuit breakers.
Short in bank A or bank B
wires 240 and/or 241.
Open in bank A or bank B
wires 240 and/or 241.
Open in ground line wire 150.
Open in injector return lines
YES
wires 619 and/or 620.
9.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
CHECK ENGINE light (CEL)
Visual inspection.
on Page 2-365
comes ON and stays ON.
Injector response times OK.
REASON FOR QUESTION
Only 1 code displayed on DDR.
No open in wires 619
Are DDEC ECM terminals and
Damaged terminals or
and 620.
connectors (DDEC ECM and
connectors can affect signal to
No short in wires 619
DDEC ECM.
harness side) free from
and 620.
No short in wires 611
damage?
through 618.
Injectors OK.
POSSIBLE PROBLEMS
Repair connectors
(Para 7-101) or
Damaged terminals.
replace DDEC ECM
NO
DDEC ECM faulty.
(Para 7-56).
Tripped DDEC circuit breakers.
Verify repair, go to
Short in bank A or bank B
Step 16 of this Fault.
wires 240 and/or 241.
Open in bank A or bank B
wires 240 and/or 241.
Open in ground line wire 150.
Open in injector return lines
YES
wires 619 and/or 620.
2-364
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