91 Subaru Legacy Blower Problem


#1

I’m back again! My 1991 Subaru Legacy’s blower for the AC & Heater no longer appears to blow. I checked all the fuses & they were good. My question; does anyone know how I can check my relay ?? I called Autozone & they said that there is no way to check them. Any suggestions is much appreciated.


#2

The first thing you need to do is unplug the connector at the blower motor itself and use a test light to probe the green/white wire. There should be power at this wire and it should pass through the motor itself and then on through a blue wire which goes to the blower motor resistor.

If there is no power at the green/white wire then either the relay is faulty or there is relay control problem. A relay or relay control problem will be more difficult to track. Without going through all of the wiring checks I would advise taking a look at that green/white and going from there.
If that’s the original blower motor odds are that is your problem. Hope that helps.

(And there is a way to check the relay. It just involves a little time and aptitude. Also keep in mind that a worn and dragging blower motor can knock out a fan relay over time)


#3

That’s great advise! Thank you and I’ll give it a try this a try this week!