Make sure you have the latest version of the NISSAN V42.00 or newer, then select AUTOMATIC SEARCH or MANUAL SEARCH for NATS module. Once you have access the NATS module you must identify which TYPE A or TYPE B system and enter the correct PIN number. In some cases you may have to locate the NATS module inside the vehicle and recover the serial number and CODES from module. You can also try to use the last four digits of the vehicles VIN number or NATS module. Otherwise you must contact your local Nissan Dealership for the correct PIN#.