TM 9-2350-287-20-1
2-19. TROUBLESHOOTING CHART (continued).
h. LIGHTS (continued).
(11) ONE OR BOTH BLACKOUT (BO) DRIVE LIGHTS
FAIL TO OPERATE. All other lights operate.
(continued).
CONTINUED FROM E
Repair wires 514 and/or 515 or replace
harness 10921380 (para 7-43). Verify
problem is solved.
E. 1. Reconnect wires 514 and 515 of harness
10921380 to headlight mount assembly har-
ness.
2. Disconnect harness 12330252 from dim-
mer switch.
3. Place one lead of multimeter on socket C
of harness 12330252 drivers bulkhead con-
nector and place other lead of multimeter on
pin A of harness 12330252 dimmer switch
connector and check for continuity.
4. Place one lead of multimeter on socket D
of harness 12330252 drivers bulkhead con-
nector and place other lead of multimeter on
pin B of harness 12330252 dimmer switch
connector and check for continuity.
Is continuity indicated?
Notify Direct Support maintenance.
F. 1. Reconnect harness 12330252 to harness
10921380.
2. Place red lead of multimeter in socket C of
harness 12330252 and ground black lead.
3. Turn MASTER switch ON (refer to TM 9-
2350-287-10).
4. Check for 24 ± 3 vdc?
Continued on next page
2-175