Change Key Fob housing problems

[Brian Sullivan]

One of the keys for may 2006 Boxster had a big crack in the housing (dropped or just overuse  .. not sure) so I ordered a new housing online from Ebay, I transferred the electronics and the laser cut key to the new housing (with some difficulty because of finicky pieces) and for good measure replaced the battery.

 

All seemed to go well -- the new key housing seems to work, unlocks trunk, frunk and doors and appears to do all the things like flashing the red light when pressed, The car appears to recognize the identity of the key by displaying the correct key in the dashboard display when unlocking occurs.

 

But when inserted in the ignition the key is not recognized and will not start the car. Have I missed some critical step?

[Loren]

Sounds like you forgot to transfer the immobilizer pill.

[Boulderx45]

If you get the key working could you please share the process? I've got a working key that has a broken ring so it won't go on my key chain. I've got a quote of $500 from dealership to replace. I would like to find a less expensive key.