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Accessories:
Turn signals
 The turn signal switch is responsible for closing the electrical circuit that allows an electrical current to flow to the signal indicator lights. As the bulbs receive current, its filament or element becomes hot and begins to glow, producing light. A flasher unit opens and closes the circuit to the light causing light to flash on and off.
The signal flasher operates by quickly opening and closing the electrical circuit to the signal bulb, causing it to flash. The flasher unit contains a temperature sensitive metallic strip and a heating element. The metallic strip is connected to contact points and a fuse.  When electrical current flows through the turn signal flasher, the metallic strip becomes heated and curls up, breaking the electric circuit and turning off the flasher.
A simplified flasher unit
The metallic strip cools very rapidly, causing the strip to straighten out and reconnecting the circuit. This cycle repeats about once per second. Signal flashers are very sensitive to the amount of electrical current flowing through them. If you increase the amount of electricity, the flasher unit will tend to flash more quickly. If you reduce the electrical current the flasher will flash slower or not at all.
Hazard Lights
The emergency flasher operates by quickly opening and closing the electrical circuit to the signal bulb, causing it to flash. The flasher unit contains a temperature sensitive metallic strip and a heating element. |
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Article Pages
1. Audio System Intro
2. Radio
3. Amplifiers, CD and Cassette Players
4. Speakers and Antenae
5. Lights
6. Lighting Basics
7. Controlling the Lighting System
8. Interior Lighting
9. Exterior Lighting
11. The Horn
12. Windshield Wipers
13. The Defroster
14. FAQs About Side-Impact Air Bags (SABs)
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