TM 5-3805-254-20-1
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
23.
BOTH HEADLIGHTS DO 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 28.
Unscrew and take off two wing screws (1) and junction box cover (2). Check two 53 wires (3 and
4) and 53A wire (5) for loose, corroded, frayed, or broken condition.
a.
If two 53 wires (3 and 4) or 53A wire (5) are loose, tighten nut (6) using 3/8-inch open-end wrench.
b.
If two 53 wires (3 and 4) or 53A wire (5) are corroded, unscrew and take off nut (6) and two wires (3
and 4) and 53A wire (5) using 3/8-inch open-end wrench. Clean wire terminals (7, 8, and 9) using
wire brush. Place wire terminals (7, 8, and 9) in position and screw nut (6) on terminal (10) and
tighten using 3/8-inch open-end wrench.
c.
If two 53 wires (3 and 4) or 53A wire (5) are frayed, repair (page 2-424).
d.
If two 53 wires (3 and 4) or 53A wire (5) are broken, two 53 wires (3 and 4) or 53A wire (5) must be
replaced. Notify Direct Support Maintenance.
e.
If two 53 wires (3 and 4) or 53A wire (5) are not loose, corroded, frayed, or broken go to step 29.
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