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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).
13
KNOWN INFO
TEST OPTIONS
Bulbs OK.
Voltage test.
Is 24 vdc present at brake
Connector P2 OK.
STE/ICE-R #89.
light switch where wire 42
Connector J2 OK.
REASON FOR QUESTION
connects?
Wire 9 OK.
If 24 vdc is not present, brake light
Circuit breaker CB6 OK.
switch faulty.
Wire 1 OK.
Run relay OK.
Wire 3 OK.
Circuit breaker CB4 OK.
Wire 40 OK.
Wire 41 OK.
Blackout light switch OK.
POSSIBLE PROBLEMS
Brake switch faulty.
Replace brake
NO
Wire 42 faulty.
switch (Para 9-4).
Wire 43 faulty.
Connector J1 faulty.
Connector P1 faulty.
YES
Socket(s) faulty.
14
KNOWN INFO
TEST OPTIONS
Bulbs OK.
Voltage test.
Is 24 vdc present at
Connector P2 OK.
STE/ICE-R #89.
connector J1-6 where wire 43
Connector J2 OK.
REASON FOR QUESTION
connects?
Wire 9 OK.
If 24 vdc is not present, blackout
Circuit breaker CB6 OK.
light switch or wire 43 faulty.
Wire 1 OK.
Run relay OK.
Wire 3 OK.
Circuit breaker CB4 OK.
Wire 40 OK.
Wire 41 OK.
Brake switch OK.
POSSIBLE PROBLEMS
Blackout light switch faulty.
Go to Step 15 of
NO
Wire 42 faulty.
this fault.
Wire 43 faulty.
Connector J1 faulty.
Connector P1 faulty.
YES
Socket(s) faulty.
Go to Step 16 of
this fault.
2-152
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