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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).
2.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Voltage test.
Truck electrical system OK.
on Page 4-168.1
All other lights on trailer
operate.
REASON FOR QUESTION
Stoplight lamp OK.
Are 10 to 14 vdc measured on
If 10 to 14 vdc are not present
center contact of stoplight
POSSIBLE PROBLEMS
on center contact of stoplight
socket?
socket, stoplight will not
Composite light faulty.
operate.
12 vdc cable faulty.
Connector MC16 faulty.
Front junction box faulty.
Wire 1003-17 faulty.
Rear junction box faulty.
Wire 1003/22-30 faulty.
Go to Step 4 of this
NO
Fault.
YES
4-168
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