i got a 97 150 xlt and i want 2 put fog lights on it. so i examined my truck and i found the wiring harness. i turned my switch on and pulled it out (that would be the fog light switch right?) , but ther is no indication on it of fog lights. then i stuck a voltage meter in the fl plug and guess wat no reading. i checked the fuses they wer there and good. so do i need a new light switch?