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Page Title:
NO DATA LINK AND LAMP CHECK OK (CONT). |
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 TM 9-2320-364-20-1
C2 NO DATA LINK AND LAMP CHECK OK (CONT).
4.
KNOWN INFO
TEST OPTIONS
CAUTION
Read CAUTION
Lamp check OK, no data link or
Resistance test.
on Page 2-437
no DDEC data received.
STE/ICE-R #91.
Are there
Codes are not flashing out when
5 ohms or
CHECK ENGINE light is
REASON FOR QUESTION
less measured between wires
illuminated.
901 and 900 at vehicle
Diagnostic request line OK.
Resistance greater than 5 ohms
harness connector MC18,
DDEC ECM connectors OK.
at vehicle harness connector
terminals C1 and C2 with
indicates open in wire 900 or
jumperwire across terminals J
POSSIBLE PROBLEMS
wire 901.
and K of the DDL connector?
Open in data line.
Short in data line.
DDR fuse faulty.
Repair wires 900 or
Short to ignition and ground.
901 (see schematic
Fig 2-1) or notify DS
NO
Maintenance.
Verify repair, go to
Step 8 of this Fault.
YES
5.
KNOWN INFO
TEST OPTIONS
Lamp check OK, no data link or
Resistance test.
Are there more than 5 ohms
no DDEC data received.
STE/ICE-R #91.
measured between wires 900
Codes are not flashing out when
and 901 at vehicle harness
CHECK ENGINE light is
REASON FOR QUESTION
connector MC18, terminals C1
illuminated.
and C2 with jumperwire
Diagnostic request line OK.
Resistance less than 5 ohms at
DDEC ECM connectors OK.
removed?
vehicle harness connector
No open in data line.
indicates short between wires
900 and 901.
POSSIBLE PROBLEMS
Short in data line.
DDR fuse faulty.
Repair wires 900
Short to ignition and ground.
and/or 901 (see
schematic Fig 2-1) or
NO
notify DS
Maintenance.
Verify repair, go to
Step 8 of this Fault.
YES
2-436
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