What frequency is the fire tone out? If 154.445, the PL tone is not the problem. It is possible that the voice was removed from the dispatch channel. Try sending the programming files to the scanner again in case something in the scanner got changed. What programming software are you using? If you attach your file, I can check it for problems. For ProScan, click on Attach files and Open the file. For FreeSCAN and ARC-XT. you will need to right click on the file and Send to Compressed (zipped) folder to be able to attach it. Click on Attach files and Open the zipped folder.