I have dealt with a lot of error codes, SIDS, PIDS, etc with my International tractor. A lot of times it is corrosion built up in the connectors causing just enough resistance in the line and affect the voltage to make it display a trouble code. Cleaning some of the connectors associated with whatever is throwing the codes might help. May be corrosion in the wiring as well, which is hard to find without a meter. Good look. I know these codes are a pita to run down.