Got a 2002, when I turn on the blinker my turn signal works fine but when I then apply the brakes both lights on that side blink, when I release the brakes it goes back to being correct. The light on the dash also blinks faster when I have the turn signal on and apply the brakes. I have ready replaced the bulbs so that is not the issue. Any ideas? signal flasher maybe?

Thanks

 

I would check the socket first could be a bad ground or bad socket ,sure its right size bulb ?,could be flasher ,turn signal switch. brake light switch