Air Vent Question A/C

[silvercert]

Took my A/C vents down today to get at my side leaf collectors. When I was removing the vent housing under the steering wheel there was a plug in the back. WHAT IS THIS PLUG? 87 Grand Wagoneer

Im talking about the A/C vents under the dash. I was cleaning the freash air vents on the side.

[Rance]

I think term is resistor(relay), if its not plugged in the A/C blower(fan) does not come on.
R

[Chevelleguy]

Blower resistor. It is what regulates the different speeds.

[FSJ Guy]

Yup. And if you forget to plug it back in, you'll drive yourself batty trying to figure out why your A/C motor isn't working.

[silvercert]

cool thanks for the info.