I have only just noticed that when I turn on my ignition the side lights (round rings) start flashing fast in a sequence like a police cars blue's n two's, then a Mexican wave. I'm on an 04 with H7 lighting although I've changed the side lights to led's.


My question is; is this normal and if so why?

 

Flashing of those lights is because those bulbs are changed to LED type. Self-checking is done when the key is inserted in to ignition and turned to position 2 or engine started. The resistance on the LED bulbs is not same as the original bulbs; hence, that flickering.

That flashing will go away if you put the original bulbs back on the car, Or you need to buy the bulbs that say "error-free".

 

My LED side markers do this too. It's normal.

 

Mine do it too, every time I start the car. They function just fine when driving. I wouldn't worry about it at all.

 

Pretty sure you can code out bulb check with NCS Expert or as others stated "error free" bulbs and or load resistors.

 

Thanks Guy's, yep it's the led's. Quite cool thought