TM 5-3805-254-20-1
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
45.
ONE TAILLIGHT DOES NOT WORK.
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 1 is for right taillight only.
Steps 2 thru 5 are typical for both right and left taillights.
Step 1.Using number one cross-tip screwdriver, unscrew and take out four screws (1) and
terminal cover (2). Using multimeter set to 20 vdc scale. Connect red test. lead to terminal (3)
and black test lead to ground. Have assistant push LIGHTS switch handle (4) up to on position.
Check for 11 to 13 vdc on multimeter. Have assistant push LIGHTS switch handle (4) to off
position. Disconnect test leads.
a.If multimeter does not read 11 to 13 vdc, 14 brown wire (5), between left and right
taillight assembly must be replaced. Notify Direct Support Maintenance.
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