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Page Title:
ENGINE HARNESS +5 VOLT SUPPLY (CONT). |
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 TM 9-2320-364-20-1
A5B ENGINE HARNESS +5 VOLT SUPPLY (CONT).
8.
KNOWN INFO
TEST OPTIONS
Verify repair.
CHECK ENGINE light (CEL)
Does CEL stay ON longer
comes ON and stay ON.
than five seconds?
DDEC ECM supply voltage OK.
REASON FOR QUESTION
4.7 to 5.2 vdc supplied to FTS
or TBS.
If CEL lights for approximately
4.7 to 5.2 vdc supplied to OPS
five seconds and then goes
or OTS.
OUT after ENGINE switch is
Terminals at DDEC ECM and
turned to ON, Fault has been
engine harness connectors
corrected.
OK.
No open in engine +5 volt line.
No short in engine +5 volt line.
No short to battery positive.
POSSIBLE PROBLEMS
Fault corrected.
NO
YES
Go to Fault Index
2-412
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