I had the same problem with my 92 Olds 98. Don't ask me how I figured this out because I cant remember, but if you disconnect the battery for a minute or two and then re-connect it the problem might go away. When mine was blinking the A/C didn't work, once I went through the drill all worked again and it has been working for the last 3 years. Mine has something to do with the cold, once it crosses over the 50* mark it happens. I just go through the drill and it works again. If it works for you, look for the A/C fuse, pulling it works also and you don't have to reset the clock and the radio but try the bat 1st.. Good luck.. Jeff N3NAA