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Page Title:
CRANE HIGH IDLE NOT WORKING (CONT). |
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 TM 9-2320-364-20-1
D4 CRANE HIGH IDLE NOT WORKING (CONT).
10.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Para 2-29, Fault 19
Resistance test.
on Page 2-469
Troubleshooting completed.
STE/ICE-R #92.
Are 3200
Throttle position sensor OK.
to 3400 ohms
DDEC ECM is reading vernier
REASON FOR QUESTION
control.
measured between vernier
DDEC ECM terminals and
Vernier control is faulty if 3,200
control harness connector
connectors OK.
to 3400 ohms are not measured
MC38, terminals A and B and
DDEC ECM OK.
between terminals A and B and
5500 to 5700 ohms measured
No open in signal and ground
if 5500 to 5700 ohms are not
between terminals B and C?
wires 510/1525 and 952.
measured between terminals B
No open in +5 volt wire 916.
and C.
No short in signal and ground
wires 510/1525 and 952.
No short in +5 volt wire 916.
Replace vernier
control (Para 7-100).
NO
POSSIBLE PROBLEMS
Verify repair, go to
Step 11 of this Fault.
Damaged vernier control
terminals or connectors.
Vernier control faulty.
YES
2-468
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