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Page Title:
ENGINE CRANKS BUT WILL NOT START (CONT). |
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 TM 9-2320-364-20-1
E1 ENGINE CRANKS BUT WILL NOT START (CONT).
11.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Fuel supply OK.
Resistance test.
on Page 2-491
No aerated fuel.
STE/ICE-R #92.
Are there
Fuel filter OK.
more than
Emergency shut-off switch OK.
REASON FOR QUESTION
or equal to 10,000 ohms or an
TRS adjustment OK.
open circuit at power harness
TRS OK.
Resistance less than 10,000
and injector harness
DDEC pulse wheel OK.
ohms indicates a short to
DDEC ECM terminals and
connectors?
ground where measured.
connectors OK.
SRS OK.
No open in injector return line.
Repair injector and/or
POSSIBLE PROBLEMS
power harness wires
(see schematic
NO
Fig 2-4) or notify DS
Short in injector return line.
Maintenance.
DDEC ECM input voltage faulty.
Verify repair, go to
Step 13 of this Fault.
YES
12.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Fuel supply OK.
DDR test.
on Page 2-491
No aerated fuel.
Fuel filter OK.
REASON FOR QUESTION
Emergecny shut-off switch OK.
Are 10 to 14 vdc measured
TRS adjustment OK.
Less than 10 vdc on DDR
between two wires 241 at
TRS OK.
indicates battery supplied +12
DDEC pulse wheel OK.
power harness connector
volts are faulty.
DDEC ECM terminals and
MC17, terminals A and B and
connectors OK.
a known good ground?
SRS OK.
No open in injector return line.
No short in injector return line.
POSSIBLE PROBLEMS
Go to Fault A4
NO
DDEC ECM input voltage faulty.
Code 46, Step 4.
YES
2-490
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