1999 Porsche Boxster : key fob blinks, security system doesn't respond. Was parked for 1 month but worked perfect prior to that. Can key fob be de-programmer somehow? Anything I can do to check things prior to dealership?

Not necessarily de-programed the keyfobs; if the car battery is uncharged, it possible that the security module sensed as an "disconected battery" condition and activated the antitheft system. Check in your owners manual disarm procedure.

The key fobs do get stuck in the on position, especially if you leave them in your pockets all day long. The buttons get stuck in the down/pressed position causing the battery to wear down and eventually the remote itself needs to be re-programed.

Also, could check the battery in the keyfob, its possible that they need replace it and re-programming. Check this ways:
1.- If the key had gone faulty, the key code must be re programmed on the vehicle computer. This can be done only using a PIWIS tool, available at the dealer or at a qualified Porche garage.
Try also the following reset:
* turn ignition on,
* turn off.
* remove the transponder from the column
* push any button on the fob within 6 seconds.

This procedure will reset the key synchronizing again with the vehicle computer.

2.- If you put the battery upside down you risk to short the key remote and break it. When the key fob is falshing slower it means that is not synchrronised with the car.

Try also the procedure below:
* Unlock your car using the key
* Open car door ( if alarm goes off, put key in the ignition to stop the alarm).
* Press unlock button on remote and the remote will resynchronize with the car.

If it does not work, then you have either two faulty remotes, if you are not, you have a faulty control module or a problem with ECU.


Hope helps. Keep us updated.