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AUTOMOTIVE LIGHTING SYSTEMS

AUTOMOTIVE LIGHTING SYSTEMS. Question # 1. How many light bulbs are on a modern vehicle? Taillights – 8 Front – 6 Side - 4 Interior – 15 IP & Controls – 22 – 24 Total - 56. Lamps. Double and single tungsten filaments Filament is in a vacuum. Lamp Ratings.

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AUTOMOTIVE LIGHTING SYSTEMS

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  1. AUTOMOTIVE LIGHTING SYSTEMS

  2. Question # 1 • How many light bulbs are on a modern vehicle? • Taillights – 8 • Front – 6 • Side - 4 • Interior – 15 • IP & Controls – 22 – 24 • Total - 56

  3. Lamps • Double and single tungsten filaments • Filament is in a vacuum

  4. Lamp Ratings Trade Design Design Wattage Name Voltage Amperage

  5. Types of Headlights • Sealed Beam – Used between 1939 – 1975 • Halogen – Bulb filled with halogen, Burns hotter, lasts longer • Composite – fixed housing with replaceable bulb • HID – High Intensity Discharge – Light emitted by a spark

  6. HID • Brighter • Wider & deeper field of vision • Use 37% less power • Last up to 100,00 miles • * As compared to Halogen bulbs

  7. HID • Separate Ballast – produces 80v • Ark tube (bulb) –filled with Xenon gas • Electrons excite salts in Xenon gas creating the ark which produces light

  8. Headlight Switches • Controls driving, parking and IP illumination (dimming) • Locations – On dash or steering column • Separate switch for high beam activation

  9. Low Beam Circuit

  10. High Beam Circuit

  11. Exterior Lighting • Taillights – Contain parking, brake, turn signals, backup, license plate lights • Can be housed in one unit or in several units • Incandescence bulbs or LED • Separate 3rd brake light asm. - CHMSL • Side Markers – Part of parking lights circuit, makes vehicle visible from the side • Fog Lights – Can be clear or yellow, factory or aftermarket, controlled by separate switch

  12. Interior Lighting • Courtesy Lights – Trunk, glove box, under hood, roof & floor lighting • Ip & Panel Lighting – Illuminate gauges and controls with dimmable lighting

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