Hi I have a 2004 Tiida, (a Japanese import to New Zealand) and have lost my key fob, a 2 button lock/unlock one. Does anyone know the frequency of the fob transmitter, I have obtained one that looks very like the old one and the key blank pattern is the same, the information on the fob is 5WK4 876/819. 433MHz. I have followed the very welcome recent post on programming and the doors unlock on the sixth key removal but the fob simply is not working. The battery (3V) is fine. Any ideas ? I am suspicious of the frequency. No joy from the dealer, at least $250 for a new fob. Car works well on a plain key.