TM 9-2320-272-24-1
Table 2-3. Electrical Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
17. HEADLAMP (ONE SlDE) INOPERATIVE
Test 1. Test headlamp connector voltage.
Step 1. Place battery switch to OFF position.
CAUTION
Lead 15 or wire 15 is hot whenever the batteries are connected.
Disconnect leads 18 and 91 at headlights.
Step 2.
Place battery switch to ON position.
Step 3.
Place light switch to SERVICE LIGHT position and depress high-beam selector switch
Step 4.
to LOW BEAM position.
Set multimeter to 50-volt range.
Step 5.
Connect multimeter positive lead to lead 18 and negative lead to lead 91.
Step 6.
a. Multimeter should indicate battery voltage. If battery voltage is not indicated,
reposition selector lever switch from SERVICE DRIVE to OFF and back to SERVICE
DRIVE.
b. If malfunction is not cleared, wiring harness from headlamp to selector switch or the
switch itself is defective. Perform malfunction 18.
c. If voltage is present and malfunction is not cleared, perform malfunction 18, test 2.
Visually inspect headlamp body pin connector for corrosion and loose connections.
Step 7.
a. Clean corroded parts.
b. Tighten loose connections.
c. If malfunction is not cleared, perform malfunction 18, test 2.
LIGHT SWITCH
END OF TESTING!
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