Chevrolet: 1997 Chevy Venture Brake Lights, chevy venture, turn signals

Question
I have a 1997 chevy venture.  I am having problems with the turn signals and brake lights.  when the right turnsignal blinks, the tail lights and backup laight blink on and off, but not the turnsignal.  The turnsignal indicator on the dash also blinks faster than normal.  When the brakes are applied, the turn signals on both sides and the backup lights come on dim.  Also at at times the abs and antilock brake lights will come on when the car is started.  The abs and antilock brake lights and the turnsignal problems all started at the same time.  Any ideas what the problem could be?

Answer
Hi Andy;
     First off was the car hit ? if not I would first check the flashers and fuses and relays, than I would look to see if there are any wires cut or grounding out - also the signal  bulbs , it could be a computor error also.
   Is the flasher switch in the on setting ?  or the signal
switch could be going.