TM 9-2330-267-14&P
Table 4-2. Organizational Troubleshooting.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ELECTRICAL SYSTEM
NOTE
For all lamps which will not light, check continuity of lamp filament. Replace lamp If
check shows a burned-out filament. If lamp Is good, continue troubleshooting.
1.
ALL LAMPS FAIL TO LIGHT.
Step 1.
Check to see if intervehicular cable
(2) is properly connected to towing
vehicle socket (3).
If intervehicular cable (2) is not
connected or loose, plug
intervehicular cable into tow-
ing vehicle socket (3) and
secure with latch (1).
Step 2.
Using towing vehicle technical main-
tenance manual, troubleshoot tow-
ing vehicle electrical system to en-
sure that correct voltage is present in
towing vehicle socket (3).
Correct towing vehicle wiring
(see towing vehicle technical
maintenance manual).
2.
TAILLIGHT WILL NOT LIGHT.
Step 1.
Using troubleshooting procedures in towing vehicle technical manual, perform tests to ensure 24
volts are present in towing vehicle socket (3).
Correct towing vehicle wiring, (see towing vehicle technical maintenance manual).
Step 2.
Check intervehicular cable (2) for corrosion or frayed spots, cuts, and proper connection.
Clean all contact pins (4) with abrasive cloth (Item 6, Appendix E); plug intervehicular cable
(2) into towing vehicle socket (3), ensuring that it is secure. Replace intervehicular cable if
needed (para 4-27).
If taillight does not light, go to step 3.
TA506990
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