You have installed a ULF therefore will need to add a pairing button attached to the wiring harness in the console. Your previous version was a TCU and automatically went into pairing but the ULF requires a pairing button to initiate. You can get (or at least was previously available) the adapter harness with the pairing button plug or can just identify the 2 wires in the harness necessary and just tap into them and then install a momentary contact switch to initiate.