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Page Title:
ONE OR BOTH HEADLIGHTS DO NOT OPERATE - continued |
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 TM 10-3930-673-20-1
6. ONE OR BOTH HEADLIGHTS DO NOT OPERATE (CONT).
KNOWN INFO
TEST OPTIONS
6
Bulb(s) OK.
Voltage test.
Is 24 vdc present at the run
Connector P2 OK.
STE/ICE-R #89.
Connector J2 OK.
relay where wire 1 connects?
REASON FOR QUESTION
Wire 9 OK.
If 24 vdc is not present, wire 1 is
Circuit breaker CB6 OK.
faulty.
POSSIBLE PROBLEMS
Wire 1 faulty.
Run relay faulty.
Wire 3 faulty.
Circuit breaker CB4 faulty.
Wire 40 faulty.
Blackout light switch faulty.
Wire 49 faulty.
Connector J1 faulty.
Repair wire 1
Connector P1 faulty.
NO
(Para 8-48).
Socket(s) faulty.
YES
KNOWN INFO
TEST OPTIONS
7
Bulb(s) OK.
Voltage test.
Is 24 vdc present at the run
Connector P2 OK.
STE/ICE-R #89.
Connector J2 OK.
relay where wire 3 connects?
REASON FOR QUESTION
Wire 9 OK.
If 24 vdc is not present, run relay is
Circuit breaker CB6 OK.
faulty.
Wire 1 OK.
POSSIBLE PROBLEMS
Run relay faulty.
Wire 3 faulty.
Circuit breaker CB4 faulty.
Wire 40 faulty.
Blackout light switch faulty.
Wire 49 faulty.
Connector J1 faulty.
Replace run relay
Connector P1 faulty.
NO
(Para 8-23).
Socket(s) faulty.
YES
2-126
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