OK fellas, I have to admit that I'm stumped.
I bought a 97 legacy GT sedan (230k and 4eat) with a blown motor because I had a 2.2 that needed a new home. The car had been sitting in a lot for about 8 months with a rod poking out of the top of the case. When the tow driver put the jump box on the battery to get the car in neutral, the fans kicked on. Both of them, on high. When he went to unload the car, the same thing happened. As soon as the key went to ACC, they both roared to life.
I stuffed in the 2.2 and it started right up, BUT those darn fans are still kicking on as soon as the key hits ACC. I've replaced all the A/C relays under the hood and all the wires going to the relays are plugged into them. Both of the ECT sensors were also replaced. There are no check engine codes. (the AT temp light does the 16 blinks of death at start-up, and even though I don't think it's related, who knows? I tried pulling TCU codes with the 5 pin jumped and the whole gear selector dance, but couldn't get anything out of it.) Oh, there is also a Clifford alarm installed but isn't connected. It's looks to me to be professionally mounted, but was obviously disconnected from power many moons ago.
In the morning I'll plug the scanner in and check the temp reading from the ECU just to make sure. These things are making me crazy! Anyone have any ideas?