I had a sim problem with my CSVT. I wasn't able to put up the driver's side windows using the master control switch. Every once and awhile, I could get them to work if I pressed really hard. It's a simple solution really. Take the unit out, and pull/pry it apart, being careful not to break the plastic. Then, once open, file the metal conductors. They can get dirty or corode, and once this happens, when they touch, the circuit does not complete. So, if you clean off the dirt, then they can touch and complete the circuit. If ya want, send it to me. I'll fix it no charge other than the shipping. It's really not too hard. The hardest part is finding something small enough to get in there to clean the metal. Hope this helps.
