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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).
3.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
CHECK ENGINE light (CEL)
Voltage test.
on Page 2-405
comes ON and stays ON.
STE/ICE-R #89.
ECM supply voltage OK.
4.7 to 5.2 vdc supplied to FTS
REASON FOR QUESTION
Are 4.7 to 5.2 vdc measured
or TBS.
between wires 452 and 416 at
Voltage of less than 4.7 vdc or
OPS and OTS harness
POSSIBLE PROBLEMS
more than 5.2 vdc will prevent
sensors from operating correctly
connectors, terminals A
or cause damage.
4.7 to 5.2 vdc not supplied to
and B?
OPS or OTS.
Damaged ECM and engine
harness connector.
Open in engine +5 volt line.
If less than 4.7 vdc
Short in engine +5 volt line.
are present, go to
Short to battery positive.
Step 5 of this Fault.
NO
If more than 5.2 vdc
are present, go to
Step 7 of this Fault.
YES
2-404
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