I switched the rear taillight bulb in my 2002 audi a6 and now every time I hit the brake it beeps and the warning light comes on. how do I fix this

Hello
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Sounds to me like the brake light circuit is interfering with the taillight circuit. My guess is a bad ground connection for the taillight bulb or brake light bulb.

First thing to check is the bulbs. The rear fog lights are the 2 bright red lights (a little brighter than the brake lights) next to the licence plate on the back of the car. They are turned on by pulling the light switch out 1 click when the headlights are on.

It is the LED componet in the taillight, not the bulbs that are replaceable. I had the same problem and only solution is to replace the entire assembly.

decoder

Your brakes may be overadjusted on the rear.

have you checked the bulbs the parking and brake circuits are seperate from each other

sounds like bad fuses or bad fuse circuit bord.
Jeremy...

That is a sign that your ABS controller is failing - www.modulemaster.com can rebuild it and warranty it for you.

Hitch fitted from new 2003