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Page Title:
REAR SIDE MARKER LIGHT(S) DO NOT OPERATE. (Cont) |
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 TM 9-2330-385-14
2. REAR SIDE MARKER LIGHT(S) DO NOT OPERATE (CONT).
5.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Truck electrical system OK.
Continuity test.
on Page 4-41
All other trailer lights operate.
Rear junction box OK.
REASON FOR QUESTION
Light lamp OK.
Is continuity measured
If continuity is not measured on
POSSIBLE PROBLEMS
between center contact of
center contact at connector,
marker light socket and
voltage cannot be supplied to
Rear side marker light faulty.
light lamp.
connector?
Wire 1012-26 faulty.
Replace rear side
marker light
NO
Verify repair, go to
Step 7 of this Fault.
YES
6.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Truck electrical system OK.
Voltage test.
on Page 4-41
All other trailer lights operate.
Light lamp OK.
REASON FOR QUESTION
Rear side marker light OK.
Are 22 to 28 vdc measured on
If wire 1012-26 is faulty, rear
POSSIBLE PROBLEMS
wire 1012-26 at marker light
side marker light will not
connector?
operate.
Wire 1012-26 faulty.
Repair wire 1012-26
(see schematic, Fig
NO
side marker harness
Verify repair, go to
Step 7 of this Fault.
YES
4-40
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