ok so i got a 98 silverado. 350 motor 2wd, ext cab shrt bed. when u open the door. lights come on. then when you close it lights go off then randomly flicker. you hear the relay go off when it flickers. took out the courtesy lights fuse and still hear the relay. unplugged the brain box of the alarm system and still does it. please. i need to know what this is so let me know.

 

Check your pin switchs.Those usually go bad. They only cost a few dollars.

 

pin switches meaning the door ones?

 

the ones on the sides of your dash they are black and poke out when the door is open