I'm afraid this isn't what I'd call a "state-of-the-art" charger. It has no integrated circuits, only a transformer and a couple of diodes.

I hadn't driven the car in a couple of months because I needed to do some work on the EGR system. When I completed the work, the battery was low, so my brother connected the charger where he had seen me connect jumper cables previously. It was only connected for 10 minutes or so before I saw it.

Everything seemed fine when I first drove it. Then I noticed the A/C wasn't cooling. I did some investigation and noticed that the compressor runs when the car is first started, but after 5 minutes it stops and does not restart. It has plenty of freon. I first suspected one of the temperature sensors: coolant, evaporator, or ambient. But I've initially ruled those out, since turning the car off then restarting makes it work again (for 5 minutes), even if the car is hot. I still need to remove the control unit so that I can verify those resistance values.

I decided to drive it across town, and while doing so, I turned the system off and back on. Then the blower quit working. Once again, turning the car off and restarting made it work again.

My manual says that when replacing the AC control module, "version coding must be carried out," but it doesn't tell me how to do that or even what it means. Maybe I erased it's memory and it needs to be recoded?

Also, does anyone know if the keys needed to remove this unit are the same as the ones used to remove the radio?

Thanks much.