Thread: How to decode the key code on replacement Discovery 2 key?

Hi All

Just bought a replacement Disco 2 key from the US.
It came without a barcode, and inside the fob there is no sticker with the 6 digit code required to let my nanocom program it to the car.

I have tried to work backwards using my original key with its 6 digit code and the various numbers on the chips and circuit board, but there appears to be no match or sequence.

The eBay vendor said that he has sold many of these keys with no problems, but has also offered to refund my money if I cant get it working.

Before I do that, does anyone know how to decode the numbers off the chips, and circuit board into the 6 digit code required for nanocom?

Thank you,
Alan

Hi Gary, The key came without a barcode, and I just assumed that it would have the sticker inside and all would be good. I got the seller to check another key he had, and he said it didn't have a sticker inside either. They are brand new Valeo keys, but the date moulded on the plastic fob is 2002/3. No I haven't checked the frequency. It is supposed to be a 433MHz key for my 2003 D2a TD5. I've only had the D2 for two weeks, and the nanocom evo for one week. I didn't want to play around with the nanocom too much yet. I thought I should save the BD performance map first ? I am wary about wrecking something as the car is running really well, and there is no real manual for the nanocom's although they seem pretty intuitive.

I wondered if the nanocom is able to read the 6 digit code when I press the buttons on the new key? or is it only able to know that it is the wrong code for that key?

And a slightly related question - the manual says to enter a 4 digit EKA code. The card that came with the car has an eight digit EKA? Do I just enter the first four digits of this?

Thanks again,
Alan