Some Toyota key fob looks same in shape and same makes, but still can’t add new keys, we can check following:
1. Check Chip. An example For Camry and highlander, before 2009 Chip is ID71, and 2009-2012 it is ID74. After 2012 it is 8A chip.
2. Check Frequecny. For 312MHz,315Mhz and others, it can be ASK or FSK. Below is some info for reference if have pcb board.
ID71 315MHz: board ID 0111 = ASK RV4 Reiz 2009
ID71 315MHz: board ID 0140 = ASK Camry Highlander 2009
ID74 315MHz: board ID 3370 = ASK Camry Highlander after 2009
ID74 315MHz: board ID 5290 = FSK Crown Reiz after 2009
ID71 315MHz: board ID 0780 = ASK Previa
ID71 312MHz: board ID 6221 = FSK Vellfire
ID74 433MHz: board ID A433 = ASK Cruiser
ID74 433MHz: board ID F433 = FSK Cruiser
3. Check smart type. Look it is WD01 or WD04 or others….
4.Check fob is new, never used. If the key is used, it is locked, we can’t program the key via OBD, only to do data initialization for immobilizer box and smart key box.