TM 9-2350-287-20-1
2-19. TROUBLESHOOTING CHART (continued).
h. LIGHTS (continued).
(12) FRONT BLACKOUT (BO) MARKER LED’S FAIL TO
OPERATE. All other lights operate (continued).
CONTINUED FROM A
B. 1. Loosen clamp and remove headlight as-
sembly from headlight mount of vehicle.
2. Place red lead of multimete ron wire socket
F of headlight mount and ground black lead.
3. Have assistant turn MASTER switch ON
(refer to TM 9-2350-287-10).
4. Check for 24 ± 3 vdc.
5. Turn MASTER switch OFF (refer to TM 9-
2350-287-10).
Is voltage indicated?
Repair or replace headlight assembly (para
7-31 ). Verify problem is solved.
C. 1. Disconnect wire 20 of harness 10921380
from headlight mount assembly harness.
2. Place one lead of multimeter on socket F
at headlight mount and place other lead on
wire 20 pin connector of headlight mount
assembly harness.
3. Check for continuity.
Is continuity indicated?
Replace headlight mount assembly (para 7-
31). Verify problem is solved.
D. 1. Disconnect harness 12330252 from
driver’s bulkhead.
Continued on next page
2-179
