TM 9-2320-272-24-1
Table 2-3. Electrical Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
19. BIACKOUT DRlVE OR BLACKOUT MARKER LIGHT INOPERATIVE
Test front blackout lamp connector voltage.
Step 1. Place battery switch to OFF position,
CAUTION
Lead 15 or wire 15 is hot whenever the batteries are connected.
Step 2.
Disconnect lead 19 at blackout drive light. Disconnect lead 20 at both left and right front
composite lights.
Step
3.
Place battery switch to ON position.
Step
4.
Place light switch to B.O. DRIVE position.
Step
5.
Set multimeter to 50-volt range.
Step
6.
Connect multimeter negative lead to vehicle chassis ground. Touch positive lead to each
of disconnected lead wires and note voltage indication through each wire.
a. If voltage was indicated, replace blackout light or lamp (para. 3-117).
b. If battery voltage is not indicated, perform malfunction 16, test 4.
END OF TESTING!
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