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TM 9-2320-364-20-2
2-1250
11. HEADLIGHT(S) DO NOT OPERATE (HIGH BEAM) (CONT).
4.
Repair wire 1017 (see
schematic Fig 2-31)
or notify DS
Maintenance.
Verify repair, go to
Step 9 of this Fault.
YES
NO
Low beam headlights operate.
Headlight lamps OK.
Headlight wire 1017 faulty.
Dimmer switch faulty.
Wire 1017A faulty.
Dimmer relay R5 wire 1435
faulty.
Dimmer relay R5 faulty.
Headlight wire 1007 faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
If wire 1017 is loose, faulty, or
shorted to ground, high beam
headlights will not operate.
WARNING
5.
Replace dimmer
switch (Para 7-35).
Verify repair, go to
Step 9 of this Fault.
YES
NO
Low beam headlights operate.
Headlight lamps OK.
Headlight wire 1017 OK.
Dimmer switch faulty.
Wire 1017A faulty.
Dimmer relay R5 wire 1435
faulty.
Dimmer relay R5 faulty.
Headlight wire 1007 faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
If continuity is not measured,
high beam headlights will not
operate.
WARNING
Are 10 to 14 vdc measured on
wire 1017 at connector MC91,
terminal A?
Is continuity measured
between wires 1017A and
1017 on dimmer switch?
Read WARNING
on Page 2-1251
Read WARNING
on Page 2-1251
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