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Page Title:
STOPLIGHT(S) DO NOT OPERATE. (Cont) |
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 TM 9-2330-385-14
5. STOPLIGHT(S) DO NOT OPERATE (CONT).
3.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Truck electrical system OK.
Continuity test.
on Page 4-168.3
All other lights on trailer
operate.
REASON FOR QUESTION
Stoplight lamp OK.
10 to 14 vdc present at center
Is continuity measured on
If stoplight ground is faulty,
contact of stoplight socket.
taillight socket ground to a
light will not operate.
known good ground?
POSSIBLE PROBLEMS
Composite light faulty.
Replace rear
composite light
NO
housing (Para 4-29).
Verify repair, go to
Step 10 of this Fault.
YES
Fault not corrected.
Notify supervisor.
4-168.2
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