ok well i have been having issues with the fan going on and off so i finaly got the energy to investigate further well i went to unplug the connector that goes to the fan ,and this was installed inbetween it now i have no idea what it is what its for.i went to the auto parts store to see if i could get another one because one of the contacts are burnt.but it looked like that someone has installed this aftermarket wise.now it looked like the wireing harness was rerouted a diff. way so i was able to rerout it so i could actually plug dirrectly to the motor of the fan and everything seams to work just fine.(so the plug plugs into this and then it plugs into the fan.) ... damit i cant post the pic and i am having trouble resizing it .......ok i think i got 2 of them