SFR for safety processor faults and RRF clears run monitor faults like brake switch failures. The TFR and SFR for sure will not be reset by any means other than entering the command. I have never had the misfortune to work on a TAC50-04 without IMS but I think a TFR can be issued from the UIT, I can give you the password. I will look and see if I can find anymore info on the UIT.
