hello. first it started fils like its shorting. when i push break the abs light went on and and when i turn on my turn signal it si goes only onece and stop working. one day i wos driving and smell like somthing is burning i cheked fueses and didn't find eny thing and then i descovered that my tail light dosen't work i chek fues it was burnout, so i changed and after few minets taillight stop working and when i cheked fues it wos find and than in the mornig, on the back of my car i find the black box. and on the box sais "toyota 15 amp taillight converter auto circuit protect"and it got 4 wires gose to that and out. and goes to the hitch outlet. and it wos burout. so i cut those wires and the taillight still didn't work and i checked fues and it wos fine i even replace that for new. does anyone know what is going on and what i have to do? thank you. and by the way it is on my lexus rx300 1999 and 145000 milege. please help