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Page Title:
STOPLIGHT DOES NOT OPERATE. (Cont) |
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 TM 9-2330-385-14
5. STOPLIGHT DOES NOT OPERATE (CONT).
4.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Truck electrical system OK.
Continuity test.
on Page 4-66.1
All other lights on trailer
operate.
REASON FOR QUESTION
Stoplight lamp OK.
Is continuity measured
LED composite light OK.
If continuity is not measured on
between center contact of
Ground wire 1435 OK.
center contact at connector,
taillight socket and
voltage cannot be supplied to
POSSIBLE PROBLEMS
connector?
light lamp.
Stoplight faulty.
24 vdc cable faulty.
Connector MC15 faulty.
Front junction box faulty.
Wire 1003-17 faulty.
Replace rear
Rear junction box faulty.
composite light
Wire 1004/22-30 faulty.
NO
Verify repair, go to
Step 10 of this Fault.
YES
Go to Step 5 of this
Fault.
4-66
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