I'm sure you have already gotten your problem fixed but I will tell you how my experience went just in case. It seems we have had the same problem. My AC would not work at all. I checked the fuse beneath the dash, nothing. I checked the relay and it was that. I tried to get one from Pep Boys and they had to order it. Since I am impatient I went to Toyota and it was listed there for about $10 more. I was kind of hesitant while at the parts window and she looked up my account (how much I've spent at Toyota) and she gave it to me for what Pep Boys was charging. Nice ehh!!! I put it in and the problem was solved, or so I thought. Up until this point I really have not had to sit in traffic for very long but my temp gauge started to increase this last summer. I didn't know what to do and when I sat, the AC would stop too even with the new relay. I found out the fan wasn't working. I am a tinkerer and everyone told me to check this and check that. I tried and got frusterated so I made sure the fan would work when it got electricity (it did) and I hot wired the thing and put a switch on the dash. It's an '03 and it almost has 200K on it (I'm not going for looks, going to run it until I can't fix it anymore) so it's ok. Hope this helps because I know I like having my AC back!!!!