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Page Title:
BLACKOUT MARKER LIGHT(S) AND/OR TAILLIGHT(S) DO NOT OPERATE - continued |
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 TM 10-3930-673-20-1
17. BLACKOUT MARKER LIGHT(S) AND/OR TAILLIGHT(S) DO NOT OPERATE (CONT).
11
KNOWN INFO
TEST OPTIONS
Turn signals OK.
Voltage test.
Is 24 vdc present at
Floodlights OK.
STE/ICE-R #89.
connector J1-5 (wire 45)?
Bulbs OK.
REASON FOR QUESTION
Connector P2 OK.
If 24 vdc is not present, blackout
Connector J2 OK.
light switch or wire 45 faulty.
Wire 9 OK.
Circuit breaker CB6 OK.
Wire 1 OK.
Run relay OK.
Wire 3 OK.
Circuit breaker CB4 OK.
Wire 40 OK.
POSSIBLE PROBLEMS
Blackout light switch faulty.
Go to Step 12 of
NO
Wire 45 faulty.
this fault.
Connector J1 faulty.
Connector P1 faulty.
Socket(s) faulty.
YES
Go to Step 13 of
this fault.
12
KNOWN INFO
TEST OPTIONS
Turn signals OK.
Continuity test.
Is continuity present between
Floodlights OK.
STE/ICE-R #88.
connector J3-E and
Bulbs OK.
REASON FOR QUESTION
connector J1-5?
Connector P2 OK.
If continuity is not present, blackout
Connector J2 OK.
control switch or wire 45 faulty.
Wire 9 OK.
Circuit breaker CB6 OK.
Wire 1 OK.
Run relay OK.
Wire 3 OK.
Circuit breaker CB4 OK.
Wire 40 OK.
POSSIBLE PROBLEMS
Blackout light switch faulty.
Repair wire 45
NO
Wire 45 faulty.
(Para 8-48).
Connector J1 faulty.
Connector P1 faulty.
Socket(s) faulty.
YES
Replace blackout
light switch
(Para 8-13).
2-316
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