Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
I am sorry for the long wait
can you up load a picture of the connector and the location ?
how does the truck run ?
any check engine light or any codes set ?
it is hard to say what the connector is for and from it looks of it with the dust inside it this connector may have never been connected up to anything
see what the codes are