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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
12
Bulb(s) OK.
Continuity test.
Is continuity present between
Connector P2 OK.
STE/ICE-R #88.
Connector J2 OK.
connector J3-M and
REASON FOR QUESTION
Wire 9 OK.
connector J1-2?
If continuity is not present, blackout
Circuit breaker CB6 OK.
light switch or wire 49 is faulty.
Wire 1 OK.
Run relay OK.
Wire 3 OK.
Circuit breaker CB4 OK.
Wire 40 OK.
POSSIBLE PROBLEMS
Blackout light switch faulty.
Wire 49 faulty.
Connector J1 faulty.
Repair wire 49
Connector P1 faulty.
NO
(Para 8-48).
Socket(s) faulty.
YES
Replace blackout
light switch
(Para 8-13).
KNOWN INFO
TEST OPTIONS
13
Bulb(s) OK.
Voltage test.
Is 24 vdc present at headlight
Connector P2 OK.
STE/ICE-R #89.
Connector J2 OK.
male connector where wire 49
REASON FOR QUESTION
Wire 9 OK.
connects?
If 24 vdc is not present, wire 49 is
Circuit breaker CB6 OK.
faulty.
Wire 1 OK.
Run relay OK.
Wire 3 OK.
Circuit breaker CB4 OK.
Wire 40 OK.
Blackout light switch OK.
POSSIBLE PROBLEMS
Wire 49 faulty.
Connector J1 faulty.
Repair wire 49
Connector P1 faulty.
NO
(Para 8-48).
Socket(s) faulty.
YES
2-132
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