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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).
10.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
CHECK ENGINE light (CEL)
Visual inspection.
on Page 2-367
comes ON and stays ON.
Injector response times OK.
REASON FOR QUESTION
Only 1 code displayed on DDR.
Is vehicle free from all
No open in wires 619
Fault may be caused by
and 620.
problems listed on facing
non-DDEC engine or chassis
No short in wires 619
component.
page?
and 620.
No short in wires 611
through 618.
Injectors OK.
Terminals at injector
harness OK.
Correct problem or
POSSIBLE PROBLEMS
notify DS
Maintenance.
NO
Verify repair, go to
Fault with non-DDEC
Step 16 of this Fault.
component.
DDEC ECM faulty.
Tripped DDEC circuit breakers.
Short in bank A or bank B
wires 240 and/or 241.
YES
Open in bank A or bank B
wires 240 and/or 241.
Replace DDEC ECM
Open in ground line wire 150.
(Para 7-56).
Open in injector return lines
Verify repair, go to
wires 619 and/or 620.
Step 16 of this Fault.
11.
KNOWN INFO
TEST OPTIONS
CHECK ENGINE light (CEL)
Visual inspection.
comes ON and stays ON.
Are DDEC circuit breakers,
Injector response times OK.
CB22 and CB23 set?
Only 1 code displayed on DDR.
REASON FOR QUESTION
No open in wires 619
and 620.
DDEC will not operate properly
No short in wires 619
if breakers are tripped or
and 620.
defective. If breakers continue
No short in wires 611
to trip, a short or ground exists
through 618.
in wire 240 or 241.
Injectors OK.
Terminals at injector
harness OK.
DDEC ECM OK.
Reset circuit
breakers. Verify
NO
POSSIBLE PROBLEMS
repair, go to
Step 16 of this Fault.
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.
YES
Open in injector return lines
wires 619 and/or 620.
2-366
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