[...] =1&st=1&i=1&m=12863&t=gm_drive&sk=26228&k=1601&p=1&v=gm&s=d rive&search=1 [[...]]

Warren , the key has a resistor , the black portion. the lock cylinder has contacts that read that , and it is fairly common to have it go bad. There are two small wires... Login to read more.