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Page Title:
STOPLIGHT(S) DO NOT OPERATE - continued |
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 TM 10-3930-673-20-1
CONTINUITY TEST
(1) Remove four screws from instrument
J1-6
panel.
(2) Lift instrument panel out to remove
connector J3 from blackout lighting
switch.
(3) Set multimeter to ohms.
(4) Connect multimeter positive lead (+) to
connector J1-6 where wire 43
CONNECTOR J1
connects.
(5) Connect multimeter negative lead () to
blackout light switch J3-C where wire
SCREW
43 connects.
BLACKOUT
(a) If continuity is present, replace
LIGHT SWITCH
blackout lighting switch
(Para 8-13).
(b) If continuity is not present, repair
wire 43 (Para 8-49).
(6) Lift instrument panel out to connect
connector J3 to blackout control switch.
(7) Install four screws to secure instrument
panel.
(8) Connect connector J1 to connector P1.
ENGINE START
VOLTAGE TEST
SWITCH
(1) Set multimeter to volts dc.
INSTRUMENT
(2) Connect multimeter positive lead (+) to
PANEL
female connector where wire 43
connects to stoplight.
(3) Connect multimeter negative lead () to
known good ground.
(4) Connect negative battery cable to
negative side of battery (Para 8-42).
J3-C
(5) Turn engine start switch to ON position,
CONNECTOR J3
BUT DO NOT START ENGINE
CONNECTORS
(TM 10-3930-673-10).
TO STOPLIGHT
(6) Turn blackout light switch to BRAKE
LIGHT position (TM 10-3930-673-10).
(7) Depress brake pedal
(TM 10-3930-673-10).
(a) If 24 vdc is present, go to Step 17
of this fault.
(b) If 24 vdc is not present, repair
wire 43 (Para 8-49).
(8) Turn blackout lightiswitch to OFF
position (TM 10-3930-673-10).
(9) Turn engine start switch to OFF
position, (TM 10-3930-673-10).
(10) Disconnect negative battery cable from
negative side of battery (Para 8-42).
TR01598
2-155
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