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Page Title:
STOPLIGHT(S) DO NOT OPERATE - continued |
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 TM 10-3930-673-20-1
7. STOPLIGHT(S) DO NOT OPERATE (CONT).
8
KNOWN INFO
TEST OPTIONS
Bulbs OK.
Voltage test.
Is 24 vdc present at circuit
Connector P2 OK.
STE/ICE-R #89.
breaker CB4 where wire 3
Connector J2 OK.
REASON FOR QUESTION
connects?
Wire 9 OK.
If 24 vdc is not present, wire 3
Circuit breaker CB6 OK.
faulty.
Wire 1 OK.
Run relay OK.
POSSIBLE PROBLEMS
Wire 3 faulty.
Circuit breaker CB4 faulty.
Wire 40 faulty.
Blackout light switch faulty.
Wire 41 faulty.
Brake switch faulty.
Repair wire 3 (Para
NO
Wire 42 faulty.
8-48).
Wire 43 faulty.
Connector J1 faulty.
Connector P1 faulty.
YES
Socket(s) faulty.
9
KNOWN INFO
TEST OPTIONS
Bulbs OK.
Voltage test.
Is 24 vdc present at circuit
Connector P2 OK.
STE/ICE-R #89.
breaker CB4 where wire 40
Connector J2 OK.
REASON FOR QUESTION
connects?
Wire 9 OK.
If 24 vdc is not present, circuit
Circuit breaker CB6 OK.
breaker CB4 faulty.
Wire 1 OK.
Run relay OK.
Wire 3 OK.
POSSIBLE PROBLEMS
Circuit breaker CB4 faulty.
Wire 40 faulty.
Blackout light switch faulty.
Wire 41 faulty.
Brake switch faulty.
Replace circuit
NO
Wire 42 faulty.
breaker CB4
Wire 43 faulty.
(Para 8-11).
Connector J1 faulty.
Connector P1 faulty.
YES
Socket(s) faulty.
2-146
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