Drivers side vent won't blow cold air after I remove the battery cable on my wife's 03 Trailblazer. I forgot to turn off the climate controls before removing the negative battery cable. Also the passenger side vent won't blow hot air. It seems that this would not affect climate controls, but it seems to have caused problems. I had to remove the alternator to replace the coolant thermostat. I would appreciate any advice. Thanks!