 |
|||
|
|
|||
|
Page Title:
DDR DISPLAY IS BLANK OR RANDOM (CONT). |
|
||
| ||||||||||
|
|
 TM 9-2320-364-20-1
A3 DDR DISPLAY IS BLANK OR RANDOM (CONT).
2.
KNOWN INFO
TEST OPTIONS
WARNING
READ WARNING
Voltage test.
DDR OK.
on Page 2-167
STE/ICE-R #89.
POSSIBLE PROBLEMS
REASON FOR QUESTION
Are 10 to 14 vdc measured on
Open in +12 volt line.
Reading less than 10.0 volts at
wire 439 at DDL connector
Open in DDR or data link lines.
DDL connector indicates open
MC13, terminal H?
Short in DDR or data link lines.
in either +12 volt line wire 439
Short in +12 volt line.
or open in ground line to DDL
DDEC ECM connector
connector.
damaged.
Repair wire 439 (see
schematic Fig 2-1)
or notify DS
NO
Maintenance.
Verify repair, go to
Step 7 of this Fault.
YES
3.
KNOWN INFO
TEST OPTIONS
WARNING
READ WARNING
DDR OK.
Resistance test.
on Page 2-167
No open in +12 volt line.
STE/ICE-R #91.
No open in DDR or data link
Are more
REASON FOR QUESTION
lines.
than 5 ohms
measured on wires 900 and
POSSIBLE PROBLEMS
Resistance less than 5 ohms at
901 at vehicle harness con-
vehicle harness connector
nector MC18, terminal C2
MC18 indicates two data lines
Short in DDR or data link lines.
wires 900 and 901 are shorted
Short in +12 volt line.
and C1?
together.
DDEC ECM connector
damaged.
Repair wires 900
and/or 901 (see
schematic Fig 2-1)
NO
or notify DS
Maintenance.
Verify repair, go to
Step 7 of this Fault.
YES
2-166
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals