Vauxhall insignia HID Xenon Headlight Fix
The world has gone mad. until fairly recently to make your car headlights come on you would flick a switch. This simple act would connect the 12 volts from the battery to your bulb, which by the miracle of electricity would come on and you could see the road ahead. Simple but effective, it served the motorist well for many decades, the world was a happy place. This happy day scenario wasn't good enough though and what with us being in the computerised age some clever sod decided that the level of complexity needed to be elevated by at least 20 levels. Wouldn't it be nice, they said, if instead of using a standard incandescent filament bulb we used a high intensity discharge bulb like used in strobe lights but flash them so fast that they look like a continuous light source? Hmm, said the bosses, wouldn't that need a 1200 volt source and a complicated little box to make that happen? Oh, yes, said the engineers, but we have a whole load more ideas too. How about we make the lights go up and down with the suspension and also have extra lights that work with the steering so you can see round corners. And while we are at it instead of having two bulbs we could have a really complicated shutter sort of thing to give us high and low beam. We could use that low cost LIN bus, which could then talk to the CAN bus so the whole shagging caboodle can then be controlled by software in the body control module. Fuck it, while we are at it we could add an overly complicated monitoring system too and instead of calling them headlights lets call them AFL - adaptive forward lighting.