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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).
6.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Para 2-29, Fault 19
Resistance test.
Are there
on Page 2-465
Troubleshooting completed.
STE/ICE-R #91.
5 ohms or
Throttle position sensor OK.
less measured
DDEC ECM is reading vernier
REASON FOR QUESTION
between wires 916 and 952 at
control.
vehicle harness connector
DDEC ECM terminals and
Resistance more than 5 ohms at
MC18, terminals A3 and C3
connectors OK.
vehicle harness connector
with jumperwire installed at
DDEC ECM OK.
indicates open in wire 916
No open in signal and ground
vernier control MC38,
(+5 volt line).
wires 510/1525 and 952.
terminals A and C?
POSSIBLE PROBLEMS
Repair wire 916
and/or 952 (see
Open in +5 volt wire 916.
schematic Fig 2-1)
Short in signal or ground
NO
or notify DS
wire 510/1525 or 952.
Maintenance.
Short in +5 volt wire 916.
Verify repair, go to
Damaged vernier control
Step 11 of this Fault.
terminals or connectors.
Vernier control faulty.
YES
7.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Para 2-29, Fault 19
Resistance test.
on Page 2-465
Troubleshooting completed.
STE/ICE-R #92.
Are there
Throttle position sensor OK.
more than
DDEC ECM is reading vernier
REASON FOR QUESTION
10,000 ohms or an open
control.
circuit measured between
DDEC ECM terminals and
Resistance less than or equal to
wires 510/1525 and 952 at
connectors OK.
10,000 ohms at vehicle harness
vehicle harness connector
DDEC ECM OK.
connector indicates signal line
MC18, terminals D1 and C3?
No open in signal and ground
wire 1525 and/or 510 or parking
wires 510/1525 and 952.
brake switch are shorted to
No open in +5 volt wire 916.
ground.
POSSIBLE PROBLEMS
Repair wires 510,
1525 and/or 952 (see
Short in signal or ground
schematic Fig 2-1)
NO
wire 510/1525 or 952.
or notify DS
Short in +5 volt wire 916.
Maintenance.
Damaged vernier control
Verify repair, go to
terminals or connectors.
Step 11 of this Fault.
Vernier control faulty.
YES
2-464
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