[PorscheFred]

Hi Guys:
I just got the code 4340 shortly after switching to LED lights, to include the third brake light on the spoiler and the rear glass. I've ordered a new switch considering that they're affordable and my car is 92K miles already.

My brake lights work just fine, just the codes show even when I reset them. Anybody else running LEDs?

If the switch doesn't fix the issue, next step would be to switch back to incandescent lights.

I'll update with the result.