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TM 9-2320-364-20-2
2-1234
10. HEADLIGHT(S) DO NOT OPERATE (LOW BEAM) (CONT).
5.
Replace circuit
breaker CB1
(Para 7-16).
Verify repair, go to
Step 14 of this Fault.
YES
NO
Circuit breakers CB1 and CB4
not tripped.
Work lights operate indicating
10 to 14 vdc to circuit breaker
CB1.
Headlight lamp OK.
Headlight wire 1006 OK.
Headlight wire 1435 OK.
Circuit breaker CB1 faulty.
Wire 1927 faulty.
Wire 1049 faulty.
Headlights relay R1 wire 1435
faulty.
Headlights relay R1 faulty.
Wire 1017 faulty.
Dimmer relay R5 faulty.
Wire 1006 faulty.
Wire 1292 faulty.
Headlight switch faulty.
Wire 1049 faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
If headlight circuit breaker CB1
is faulty, headlights will not
operate.
WARNING
Are 10 to 14 vdc measured on
wire 1927 at headlights circuit
breaker CB1?
Read WARNING
on Page 2-1235
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