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 TM 9-2330-331-14&P
0010 00
Table 1. Operator Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ELECTRICAL SYSTEM
1. ALL LAMPS FAIL TO
1. Check towing vehicle for inoperative lights. Report inoperative Iights to
LIGHT
Organizational Maintenance.
2. If only towing vehicle lights operate, check Connect electrical connector
towing vehicle electrical connector for loose or (WP 0007 00-3).
improper connection at semitrailer electrical
receptacle.
1. Clean contacts.
3. Check semitrailer electrical receptacles
and towing vehicle electrical connector for
2. If condition is not repaired,
dirty and corroded contacts.
notify Organizational
Maintenance.
If light assembly is damaged,
2. ONE OR MORE LAMPS 1. Check light assemblies for damage.
notify Organizational
(BUT NOT ALL) FAIL TO
Maintenance. If light assembly
LIGHT
is not damaged, go to step 2.
Notify Organizational
2. Check for broken lead wires and dirty or
Maintenance if any lead wires
loose connections.
or wiring harness require repair
or replacement.
If light assembly is damaged,
1. Check for damaged light assembly.
3. DIM OR FLICKERING
LIGHTS
notify Organizational
Maintenance. If light assembly
is not damaged, go to step 2.
Notify Organizational
2. Check for loose, dirty, or corroded
Maintenance.
terminals.
1. Clean electrical receptacles
3. Check semitrailer electrical receptacle
and contacts.
and towing vehicle electrical connector
for dirty and corroded contacts.
2. If condition is not repaired,
contact Organizational
Maintenance.
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