Ongoing problem with electrical. Getting trouble code P0622 Generator Field "F" Control Circuit Malfunction...... Replaced Battery,Alternator,ECM, and Belt, Reset Codes, checked all wiring and connections, Still getting P0622 Code. Before new alternator the lights had a constant "flicker" with Popping sound coming from the radio speakers, that has since stopped but now I get the trouble code and occassionally it wont start with "dead" battery symptoms, unplug/replug battery and it starts like there was never a problem. Also, the P0622 code will not erase with scanner tool or battery unplug.... Any ideas?