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TM 9-2320-364-20-2
2-1398
27. FRONT BLACKOUT CLEARANCE OR MARKER LIGHT DOES NOT OPERATE
(CONT).
Parking lights operate indicating
wire 1435 to front composite
light OK.
Blackout clearance lights
operate indicating 10 to 14 vdc
to wire 1680 at clearance light
splice.
Wire 1680 between marker
light splice and markler light
faulty.
Front composite light faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Voltage test.
STE/ICE-R #89.
If 10 to 14 vdc are not
measured, blackout marker light
lamp will not operate.
YES
NO
Repair wire
1680 (see
schematic Fig 2-35)
or notify DS
Maintenance.
Verify repair, go to
Step 9 of this Fault.
8.
Are 10 to 14 vdc measured on
wire 1680 to faulty blackout
marker light front
composite light?
Replace front
composite light
(Para 7-46).
Verify repair, go to
Step 9 of this Fault.
WARNING
Rear black clearance lights
operate indicating blackout
marker switch is OK.
Parking lights operate indicating
wire 1435 to front composite
light OK.
Blackout clearance and marker
light lamp OK.
Front clearance light and
composite light OK.
Wire 1680 OK.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Verify repair.
If blackout clearance and
marker lights operate, fault has
been corrected.
YES
NO
Fault not corrected.
Notify DS
Maintenance.
9.
Do all front blackout
clearance and marker lights
operate?
Fault corrected.
Read WARNING
on Page 2-1399
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