EATC problems

[CorSec131]

I recently bought a hard button EATC for my '92 MTX. All of the buttons were in the same position as on the old broken one, and the original wiring harness' hooked up to it. But...there is another recepticle on the back of the unit that I have nothing to plug into.

I plugged it up and all of the functions work except the blower. I don't know if it came from a SHO or a Lincoln. I do know that my blower control module is on the fritz and haven't been able to find one yet.

Can anyone help?

 

[jelloslug]

That one is not compatable with SHOs, there are many that work the actuators but not the blower motor. I'm curious, can you take a pic of the extra connector?