Originally posted by DennyW
Your welcome.
Oh, I know your a mechanic, but make sure the power is unhooked when you plug it in.
Good point, and this is a bit of an update guys. Caddilac seems to have an issue with these climate controll modules. Now i know why. Upon pulling the module out of the heater core housing(?) I noticed that the cooling fins pointed straight downwards parallel to the heater core. Now if anyone here knows anything about electronics, it has never been a good idea to add heat to a computer. So, Naturally, They tend to barbeque. And as a side note, due to lowered resistance, they become sensitive to surges. Upon closer inspection, several transistors had burned. One clean off the board!:O So thanks for the tips guys, and keep an eye out for this one. Later