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Page Title:
TAILLIGHT(S) DO NOT OPERATE (S/N YB6122 075 AND UP). (Cont) |
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 TM 9-2330-385-14
14. TAILLIGHT(S) DO NOT OPERATE (S/N YB6122 075 AND UP) (CONT).
3.
KNOWN INFO
TEST OPTIONS
WARNING
Read WARNING
Truck electrical system OK.
Voltage test.
All other trailer lights operate.
Wire 1435 OK.
REASON FOR QUESTION
LED composite light ground
Are 10 to 14 vdc measured on
(wire 1435) OK.
If 10 to 14 vdc are present on
wire 1008B/21, LED composite
wire 1008B/21 at LED
light is faulty. If not, composite-
composite light?
light harness wire 1008B is
POSSIBLE PROBLEMS
faulty.
Wire 1008B/21 faulty.
LED composite light faulty.
Repair wire
1008B/21
(see schematic, Fig
FO-1.1) or replace
NO
side composite light
harness (Para 4-30.1).
Verify repair, go to
Step 7 of this Fault.
YES
Replace LED
composite lights
(Para 4-29). Verify
repair, go to Step 7
of this Fault.
4-202.24
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