Good evening all, a/c worked great driving home home Friday. I turned off the controls when I shut the vehicle off, not knowing after reading the owners manual it states that the a/c works better if it is left on. Today, the compressor only clicked on when the defrost position was selected. I love the V70, but all the electronics is p.i.t.a. What can I do to fix this problem with all the heat in the south? I also disconnected the negative on the battery to reset check engine light, could disconnecting the battery caused my issue?