HID Xenon Headlight Electrical Retrofit

HID Xenon Headlight Electrical Retrofit

Does triggering relays directly from headlight connector, harm the headlight switch?

The answer is yes. Activating relays is done by connecting voltage to a coil, which in turn creates a magnetic field. When voltage is removed from the relay, the energy that is stored in the coil collapses, and will send current the other way, by increasing voltage to several hundred volts. A small arc will be visible between the contact elements of the headlight switch. Over time, the switch will only work intermittently, and will eventually fail. That's why a serial diode is essential to protect the headlight switch.

Here's the current path to a properly connected H.I.D. retrofit electrical wiring.

The heart of most of the electrical work is at the H.I.D. relay. The relay, the most common is a Bosch type, has 5 terminals, of which 4 are of interest to you.

Terminals 84 and 85, sometimes labeled 85 and 86, is the relay coil. Remember to install an in line diode between these two terminals. Most newer relays have this diode internally. As we've said before, the diode protects the headlight switch from damage due to arching.

Shown in this video, terminal 84 is connected to ground. You may connect either of the relay coil terminals to ground. This is the activation ........That was just an excerpt of this video...Get the whole story here and do it an HID retrofit yourself. Save money with our HID retrofit video.
Presented using advanced software CG animation technology to help you understand. Part of our Automotive Technology series shown here on this channel. Enjoy...

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Видео HID Xenon Headlight Electrical Retrofit канала ADPTraining