Has anyone had problems with the driver's door auto down power window switch? Mine only work if I hold the switch down. I bought a brand new switch assembly but it does exactly the same thing. The passenger door switch does auto down just fine. 2004 C5.

 

I had to replace the black control module in the passenger side door. My car is a '03 c5......... cjs

 

Do I need to change that module even if the passenger door auto down works just fine? Is there a module in both doors? What did this module cost? THANKS

 

I believe there is a module in each door. I didn't remove and replace that module because it was under warranty, but I was able to stand right there and watch the job, it looks pretty straight forward to me.TheWarranty service reports that I get don't show prices and I don't get the old part because I didn't pay for the work. good luck............... cjs