My girlfriends 2000 L200 has had its heat/ac out for a bit now. I've pulled out the blower motor and tested it and that ran fine on a battery (12v). I saw this thread http://www.saturnfans.com/forums/sho...d.php?t=179632 and so I pulled about the inside fuse panel and checked out the F2 pin and that looked fine (I pulled it out and reseated it anyways). No Change, I wiggled every wire with the key turned and no motion. I pulled on the climate controls by the radio and checked those wires for anything lose and no dice. I hooked a meter up to the blower motor contacts and when I turn it on its gets a very small signal then zeroes out near-instantly.

Any ideas? I thought for sure that other forum was what was happening because it used to be when she hit a certain pothole it would kick on. I ordered a replacement set of controls just in case it's the switch that is bad (no reason to think this, it was relatively cheap so I thought I would try it.).
EDIT: Just realized I wrote wrong model and I'm in the wrong section

UPDATE: So I pulled out the radio and climate control and checked all the connections for burnt connectors, melted wires, and oxidation. Everything looked good and wiggling did nothing. I took the switch out of the face and opened that, cleaned the connections, no go.

 

Moved your post.....

First you need to figure out what freaking car your talking about. SL2, LS, L200 etc. The thread on Saturn Fans is about a SL and thats is nothing like a LS including the wiring and fuses positions.

 

Sorry for the confusion, been going off what she said rather than just checking myself. It is a 2000 V-6 Saturn L-200 4 door sedan model. Thanks for moving tr thread.

 

Check the HVAC resistor and the wires that connect to it mounted in the duct work. Should be on the passenger side under the dash.

 

So I used a test light to follow the electrical problem and I discovered that the fuse to the HVAC unit (engine fuse box) was even getting power to the 40a fuse there. Considering that is the end of the line, I popped open the fuse box and pushed on all the wires ( didn't expect anything to happen, was at my whit's end really at that point). When I reconnected the power, the blower kicked on and work great at all speeds. I celebrated with a steak dinner.

However, after about 30 mins of driving, the blower went back out. Tried the same thing, didn't fix it. However, the next morning I get in it to drive and it worked. So basically, when the car is cold, it works, once it heats up, it fails. So some wire is lose/burnt out/oxidize in the engine fuse box. Only problem is I can't find a diagram to tell what is what on the bottom side of the fuse box. If I just knew which wires related to the HVAC fuse I could pop them out and try a permanent fix, but there are too many to just do them all.

 

Get yourself a can of electrical contact cleaner and remove that fuse and clean the contacts. Also, removing the fuse and reinserting it several times can help "sweep" the contacts clean. You really may need to take the fuse box loose and see if there's enough slack for you to look under it. You may just have some corrosion on it that needs cleaning.