Quantcast Figure 16-20. Turn Signal Flasher

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TM 9-8000
16-14. Backup Light System.
a. General. The backup lamp system provides a
warning to pedestrians and visibility to the rear whenever
the vehicle is shifted to reverse. A typical backup light
system is shown in figure 16-21.
b. Switch Configurations. The most common backup
light switch configurations are:
(1) The backup light switch may be mounted on
the transmission and operated by the shift linkage.
(2) The backup light switch may be mounted on
the steering column and operated by the gearshift
(3) The transmission or gearshift mounted
backup light switch on many automatic transmission-
equipped vehicles is combined with the neutral safety
16-15. Stoplight System.
Figure 16-20. Turn Signal Flasher
a. General. All vehicles that are used on public
movement will close the contact points and cause the
highways must be equipped with a stoplight system. The
flasher to pass full current to the turn signal lamps,
stoplight system consists of one or two red lamps on the
lighting them.
rear of the vehicle that light up whenever the brake is
applied. Typical stoplight wiring circuits are shown in
(3) The closing of the points causes the current
figure 16-22. It should be noted that some stoplight
to cease flowing across the heating coil. The cooling of
circuits are integrated in the turn signal circuit. These
the heating coil in turn will cause the bimetallic strip to
circuits are described in paragraph 16-13.
contract, pulling the contact points open again. This
again will turn off the turn signal lamps.
b. Stoplight Switch Configurations (Fig. 16-23).
Some models have stoplight switches that are actuated
(4) This sequence of events will repeat a few
mechanically by the brake
times a second, causing a steady flashing of the turn
Figure 16-21. Typical Backup Light System


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