[dwcsr]

Also look at the bulbs. Sometimes a filiment will break off at one end and flop onto the other. If your stepping on the brakes and the front parking lights coem on then your powering the parking/tail lights when you step on the brakes.
It could be a bulb or a shorted socket or 2 wires rubbed to gether or a bad ground at one of the lights. Parking lights don't go through the column so count that out