Nissan Maxima 1999 car key replacement

1999 Nissan Maxima  (and Infiniti I30) Transponder Key  NSN11T2A PIN code is not needed for Infiniti-Nissan.

Important Note: You must have all existing keys present, if you want them to continue to start the vehicle. All keys are erased during this process and are considered “New” again and must be added back into the Immobilizer system.
A lost key situation requires the Nissan car dealer or a professional automotive locksmith to cut and program a new replacement key 
Advanced diagnostics System 3 in the U.S. Some 1997-2000 Infiniti-Nissan models in the U.S. use a special OBD cable to connect to the vehicle’s computer. This cable is called “Old Style Nissan” cable. The Old Style Nissan cable is used whenever you see this port. If you see the Old Style Nissan port and the standard OBD 2 port, always use the Nissan Old Style port. The Q45 has a port that is hidden under a black cover on the very bottom of the dash. The 1999 Infiniti I30 & Nissan Maxima have a port located in the Fuse Panel. The 1999-2000 Infiniti QX4 & Nissan Pathfinder have the port exposed on the very bottom of the dash.