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Page Title:
FRONT MARKER LIGHT(S) DO NOT OPERATE (S/N YB6122 075 AND UP). (Cont) |
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 TM 9-2330-385-14
12. FRONT MARKER LIGHT(S) DO NOT OPERATE
(S/N YB6122 075 AND UP) (CONT).
2.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Truck electrical system OK.
Continuity test.
on Page-118.5
All other trailer lights operate.
Wire 1012B OK.
REASON FOR QUESTION
POSSIBLE PROBLEMS
If front marker light ground is
Is continuity measured be-
faulty, corroded or loose, light
Wire 1435 faulty.
tween front marker light
will not operate.
Front marker light faulty.
ground contact and a known
good ground?
Repair wire 1435 (see
schematic Fig F0-1.1)
or replace trailer main
NO
wire harness (Para
4-30.1). Verify repair,
go to Step 3 of this
Fault.
YES
Replace front
marker light
assembly (Para
4-27.1). Verify
repair, go to Step 3
of this Fault.
4-118.4
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