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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).
15
KNOWN INFO
TEST OPTIONS
Bulbs OK.
Continuity test.
Is continuity present between
Connector P2 OK.
STE/ICE-R #88.
connector J3-C and
Connector J2 OK.
REASON FOR QUESTION
connector J1-6?
Wire 9 OK.
If continuity 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.
Repair wire 43
NO
Wire 42 faulty.
(Para 8-48).
Wire 43 faulty.
Connector J1 faulty.
Connector P1 faulty.
YES
Socket(s) faulty.
Replace blackout
light switch
(Para 8-13).
16
KNOWN INFO
TEST OPTIONS
Bulbs OK.
Voltage test.
Is 24 vdc present at stoplight
Connector P2 OK.
STE/ICE-R #89.
female connector where
Connector J2 OK.
REASON FOR QUESTION
wire 43 connects?
Wire 9 OK.
If 24 vdc is not present, wire 43
Circuit breaker CB6 OK.
faulty.
Wire 1 OK.
Run relay OK.
Wire 3 OK.
Circuit breaker CB4 OK.
Wire 40 OK.
Wire 41 OK.
Brake switch OK.
Blackout light switch OK.
Wire 42 OK.
POSSIBLE PROBLEMS
Repair wire 43
NO
(Para 8-49).
Wire 43 faulty.
Connector J1 faulty.
Connector P1 faulty.
YES
Socket(s) faulty.
2-154
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