I have a 2003 Mazda 6 - Check engine light came on, went to the Zone and had it scanned, bad O2 sensor, replaced both and went back to clear the code and now the port will not communicate with the scanner. Is there a fuse somewhere for this thing? On my GMC it is a shared fuse with the charging stations but I have pulled every fuse out of both boxes and tested them, ALL GOOD. HELP!!!