EATC/Heat problems

[Husky]

When I bought my 1990 SHO, I didn't get an EATC with the car. I went down to the junkyard and bought what I thought was a good EATC out of a 1995 Lincoln. I got home, plugged it in, and everything is working correctly EXCEPT the blower motor. I've been on the phone with one of my SHO buddies for about 2 hours while he tried to walk me through the troubleshooting, but I'm not getting anywhere. I ran the self-test, and got the following codes:

043
025
125
115

Not sure where to go from here, I don't want to just pop another EATC in without knowing for sure that's the problem.

 

[Husky]

To add to this, I'm on the phone with Clay(zblackbeast) and he's checking some stuff... At his blower motor connector(2 wire, one orange/red and one brown/orange) with the blower motor connected, he gets 12 volts at both wires with the EATC off, with the blower on HI , he gets 1.3 volts on the orange/red and 10.7 on the brown/orange, with the blower on LO he gets 8.4 volts on the orange/red and 11.5 volts on the brown/orange, at halfway he gets 6.3 volts on the orange/red and 11.3 volts on the brown/orange. At the same connector on my car, I am getting battery voltage at both connectors no matter where I put my EATC blower motor speed dial. His car is a 1995 with a 1995 hardbutton, mine is a 1990 with a 1995 Lincoln hardbutton.

Any ideas? I'm starting to lean towards the EATC, but I guess I should also look at the blower motor speed controller, I guess?

 

[Husky]

Also, at the signal wire from the EATC to the blower motor speed control(we think), a tan/orange wire, clay gets varying voltages when he adjusts his EATC fan speed control, whereas I get the same voltage(battery) regardless of where I adjust mine to.

 

[Husky]

Bad EATC, never mind. Buying a Panther EATC to do that swap tomorrow.

 

[zblackbeast]

Killed my battery trying to follow wires.. -.- Glad we got it sorted out.

Always good to check all the variables before we go throwin' parts at it..