I
Before performing these steps, ensure that service
stoplight is operational.
Remove blackout (BO) stoplight bulb. Turn MASTER switch
ON. Then move light switch to BO DRIVE position and apply
parking brake. Using multimeter, place red lead in center con-
tact and ground black lead. If voltage is present, replace bulb
(p 6-36). If no voltage, go to step J.
J
Disconnect light switch connector. Place jumper wire from
socket F to socket N. If BO stoplight operates, replace light
switch (p 6-21). Apply brakes. If light fails to operate, wire 23
is defective. Notify Support Maintenance.
TA310528
2-169
TM 9-2350-267-20
