Ok I understand that. When I first bought the car I had the 8 fault code so I bought a repair piece off eeuroparts and just fixed it so now I finally have heat and AC on my side of the car lol. The 19 code was there before but it was only a 1----19 and a 2-----8 now the 2---8 is gone and instead there is now a 3----19 wtf. What I was explained to me was the first number indicated number of faults and the second number was the fault. So my question is if the 2---8 is gone how do I now have a 3---19 ? Also does anyone know where this circulation pump is located? I am having a hell of a time figuring that one out.