TM 5-3805-254-20-1
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
45.
ONE TAILLIGHT DOES NOT WORK - CONTINUED.
WARNING
Although KEY SWITCH must be on and battery ground cable connected to test electrical circuit
voltage, turn off KEY SWITCH and disconnect battery ground cable before doing resistance tests
or replacing parts. This will keep you from getting shocked and prevent damage to parts and
equipment.
NOTE
Scrape painted surfaces to bare metal before connecting test leads to ensure correct multimeter
readings.
Step 4.
Check taillight assembly (1) for looseness.
a.
If taillight assembly (1) is loose, tighten three nuts (2)
using 7/16-inch box-end
wrench. If tail light does
not work, go to step 5.
b.
If taillight assembly (1) is not loose, go to step 5.
Step 5.Using multimeter, set to ohms scale and adjust to 0 ohms. Connect red test lead to stud
(3) on
taillight assembly (1) and black test lead to bracket (4).
Check for 0 ohms on multimeter.
Disconnect test leads.
If multimeter reads no continuity, using 7/16-inch box-end wrench, unscrew and take off
three nuts (2) and three lockwashers (5). Take taillight assembly (1) off of bracket (4).
Clean three studs (3) and mating surfaces (6) using wire brush. Put taillight assembly (1)
on bracket (4). Screw three nuts (2) and three lockwashers (5) onto three studs (3) and
tighten using 7/16-inch box-end wrench. Perform step 5 again to ensure continuity.
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