1 / 20

Lighting and Wiring Fundamentals

Lighting and Wiring Fundamentals. Chapter 36 Page 466. Primary verses Secondary Wiring. Primary wiring carries around 12 volts. Almost all wiring in your vehicle is “primary”

tyrone-bean
Download Presentation

Lighting and Wiring Fundamentals

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lighting and Wiring Fundamentals Chapter 36 Page 466

  2. Primary verses Secondary Wiring • Primary wiring carries around 12 volts. Almost all wiring in your vehicle is “primary” • Secondary wiring carries high voltage (up to 100,000 volts) The ignition system is the only wiring that is secondary. (spark plug wires)

  3. Fuses Circuit Protection Devices • Controls Devices Switches for on and off Fuses and Circuit Breakers Protect form Overloads

  4. Fuse links A fuse link is a piece of smaller (weaker) wire linking a regular wire. If the circuit is overloaded then the link burns and breaks contact. This section is coated with a fire retardant material.

  5. Types of lights Socket type Rear tail Lights Must be Red Various Bulbs Sealed Beam Head Lights Side Marker

  6. Headlight Operation

  7. Standard Lighting Verses Halogen • Standard lighting is most common with all lights except headlights. Standard light bulbs need to be handled with care. • Halogen lights burn extremely bright and Hot. Don’t touch then when on and try not to handle them by touching the glass. Your fingerprint-if left on it will make the light fail quickly. (halogen bulbs can be blue in color)

  8. High Intensity Discharge (HID) • Gives off a blue color • These bulbs are filled with Zenon • The reaction causes an arc which is very bright. • These bulbs take 3-5 seconds to fully brighten, once on, they use 25% less power than halogen lights. • Caution- High Voltage is produces at the bulb (800 volts) this is used to start it’s arc • Don’t use test equipment on it. Either it’s working or not. (Voltage is too high for our meters)

  9. Dimmer Switch • Change from high to low beams • It has a flash option at times to notify oncoming traffic • Some cars have auto dimmers-optical sensors detect oncoming cars and dim the lights for you • Can be located on the floor or on most modern vehicles –they are incorporated in the turn signal arm

  10. Courtesy Lights • Includes dome, glove box, under hood, floor, dash and trunk lights • Can be operated through headlight switch and another near headlight switch • Will dim through headlight switch (dash) • Door, hood, and trunk switches control those lights

  11. Tail Lights • On with light switch • Red in color • Incorporated in an assemble with brake and back up lights • Socket type bulbs • Fused as parking lights or tail lights

  12. Brake Lights and Turn Bulbs • Many light bulbs have more than one filament inside them. These bulbs normally have offset pins to ensure proper locking in the socket. Be sure to look carefully at the bulb you are replacing to make sure you do not try to force the bulb in the wrong way. • Some bulbs have a colored glass envelope that enables them to be used with a clear lens. If you replace a bulb of this type, make sure that you replace it with one of the same color.

  13. Wipers and Washers • Modern motors have a delay option • The first motors ran off vacuum from the engine that was subject to slowing or stoppage. (rpm) • A 1968 federal law called for at least two speeds and a washer system.

  14. Types of Wiper Designs

  15. Rain Sensor • System Operation An infrared beam is reflected off the outside surface of the windshield to the infrared sensor array. When moisture strikes the windshield, the system experiences an interruption to its infrared beam. Advanced analog and digital signal processing determines the intensity of rain or snow. The sensor communicates to the wiper control module to switch on the wiper motor and controls the wipers automatically according to the moisture intensity detected.

  16. Horns • Most vehicles have two horns wired in parallel if one fails the other will work. (one horn may have a different tone). • A diaphragm and an electromagnet produce the noise. • When you push the horn button it “closes” the circuit.

  17. Your Job. • Complete chapter Questions 1-15 (review) and 1-10 (ASE-style). Page 476 • Write on a separate paper and write out the complete question and your answer. ( do not write the other answer options). • Complete the chapter worksheet (I will give it out). You may write on it. • File all items in your note book. • Notebooks will be graded in the future.

More Related