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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
4
Bulb(s) OK.
Voltage test.
Is 24 vdc present on circuit
STE/ICE-R #89.
POSSIBLE PROBLEMS
breaker CB6 where wire 9
REASON FOR QUESTION
Connector P2 faulty.
connects?
Connector J2 faulty.
This question eliminates possible
Wire 9 faulty.
problems and determines where
Circuit breaker CB6 faulty.
troubleshooting continues.
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.
Go to Step 15 of
Connector P1 faulty.
NO
this fault.
Socket(s) faulty.
YES
KNOWN INFO
TEST OPTIONS
5
Bulb(s) OK.
Voltage test.
Is 24 vdc present on circuit
Connector P2 OK.
STE/ICE-R #89.
Connector J2 OK.
breaker CB6 where wire 1
REASON FOR QUESTION
POSSIBLE PROBLEMS
connects?
If 24 vdc is not present, circuit
Wire 9 faulty.
breaker CB6 is faulty.
Circuit breaker CB6 faulty.
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.
Replace circuit
Connector P1 faulty.
NO
breaker CB6
Socket(s) faulty.
(Para 8-11).
YES
2-124
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