How to add a new key and program all keys lost for Ford Ranger 2015 using OBDSTAR X300 DP PLUS (Key Master DP plus) via OBD. Add A Spare Key Procedure: Connect x300 dp plus with vehicle Select Immobilizer->Ford/Lincoln->Ford->Immobilizer->Ranger->2015 up->Type 1(Priority Select)->Program keys Communicating Press Emergency flasher switch Open and close the driver door once Detect current number of keys: 2 Connecting the server Reading data Insert a new key into ignition lock, switch ignition on, Press ENTER to continue Program 1st key success Test remote control and start vehicle X300 DP plus All Key Lost Procedure: Select Immobilizer->Ford/Lincoln->Ford->Immobilizer->Ranger->2015 up->Type 1(Priority Select)->All Keys Lost Communicating Press Emergency flasher switch All keys will be erased. Require at least 2 keys to be programmed Detect current number of keys: 3 Connecting the server Reading data Co...