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Page Title:
TAILLIGHT(S) DO NOT OPERATE - continued |
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 TM 10-3930-673-20-1
VOLTAGE TEST
(1) Set multimeter to volts dc.
(2) Connect multimeter positive lead (+) to
taillight female connector where wire
46 connects.
(3) Connect multimeter negative lead () to
known good ground.
(4) Connect negative battery cable to
negative side of battery (Para 8-42).
(5) Turn engine start switch to ON position,
BUT DO NOT START ENGINE
(TM 10-3930-673-10).
C
MALE
(6) Turn blackout light switch to SER.
ONNECTOR
DRIVE position (TM 10-3930-673-10).
(a) If 24 vdc is present, go to Step 14
of this fault.
FEMALE
C
(b) If 24 vdc is not present, repair
ONNECTOR
wire 46 (Para 8-48).
(7) Turn blackout light switch to OFF
position (TM 10-3930-673-10).
(8) Turn engine start switch to OFF
position, (TM 10-3930-673-10).
(9) Disconnect negative battery cable from
negative side of battery (Para 8-42).
GROUND
CONTINUITY TEST
C OUTSIDE
CENTER
ONDUCTOR
(1) Disconnect ground female connector
from male ground connector.
ONDUCTORTR01711
(2) Set multimeter to ohms.
(3) Connect multimeter positive lead (+) to
ground outside conductor at taillight
socket.
(4) Connect multimeter negative lead () to
ground cable.
(a) If continuity is present, replace
bulb (Para 8-33).
(b) If continuity is not present, repair
wire 2 (Para 8-49) or replace
blackout brake light socket
(Para 8-13).
2-175
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