My remote entry system was working somewhat intermittently lately. However, two days ago it just quit. Thinking the battery might be bad, I replaced it. However, the original one was still showing a little over 3 volts when I tested it. Checked all the fuses, etc. but can't find anything. The doors lock normally if you use a key. Neither of the remotes work. I would appreciate any suggestions!

This is a 2002.5 S80 2.9

Thanks for your help.