When I bought my 98 Tacoma SR5 the other day I was given only one fob. I got another identical Toyota fob from a wrecking yard (with the customer service and social graces of a starving pitbull). I found the instructions online on how to program it but it won't work. I know the instructions are correct because I was successfully able to reprogram my locks and alarm chirp. Do I have to take the used fob to the Toyota dealer to get them to install something inside of it before I use the truck's ECU to reprogram it?