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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).
4.1.
KNOWN INFO
WARNING
TEST OPTIONS
Read WARNING
Truck electrical system OK.
on Page 4-66.3
Voltage test.
All other lights on trailer
operate.
Taillights operate indicating
REASON FOR QUESTION
Are 22 to 28 vdc measured on
LED composite light OK.
Ground wire 1435 OK.
If 22 to 28 vdc are not present
wire 1004/22-30?
on wire 1004/22--30 LED
composite light will not
POSSIBLE PROBLEMS
operate.
LED composite light faulty.
24 vdc cable faulty.
Connector MC15 faulty.
Front junction box faulty.
Wire 1003-17 faulty.
Rear junction box faulty.
Wire 1004/22-30 faulty.
Go to Step 5 of this
NO
Fault.
YES
Replace LED
composite light
(Para 4-29). Verify
repair, go to Step 10
of this Fault.
4-66.2
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