My Boxster Key Fob Does not work . Replaced batteries by nothing. LED does not flash.

Hi,

Please double check that you're purchasing the key fob from either VW or a different brand than the one that gave you the error. I'm guessing the brand that you have is making defective key fobs otherwise, the new fob should have worked.

Thank you.

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.

I take it the key fob doesn't work Try disconnecting the battery for 30 minutes and see if that will reset the alarm. You may need the key fob to reset.

Assuming the car battery is ok (if not, buy a male to male cigarette lighter at the auto store and connect to another car until charged enough to unlock the doors...but don't try to crank the ignition!). The trunks won't open if the battery went dead with the alarm set because arming the alarm physically locks the releases.

Sounds like the key code is switched off because you replaced the key fob battery. Try unlocking the car manual with the key in the door lock. Then switch the ignition on to reactive the keyless entry. If this does not work, you might also try pressing the fob unlock button with the key in the door lock until the dash led flashes.

does the led on remote flash when pressed, if so try to initialise remote by inserting key in door barrel or ignition lockthen turning key, whilst doing this press and hold lock/unlock button. the led on dash should flash to show the key has been initialised, then remove key and test operation. If none of this works then a new remote and coding to car is needed by your nearest dealership

It's possible the key fob itself was bad and not the battery. Do you have another key fob. It may need to be relearned.

Insert key into door barrel or ignition lock and turn key, whilst doing this press the unlock/lock button, the led on the dash should flash to indicate this has initialised the key to the car, then remove key and test operation of remote. If this fails then a new remote plus coding to the car by your dealership is needed

Programming
When
Key batteries completely discharged. Key batteries not replaced within 15 seconds. Key added or replaced. System malfunction.
How
Obtain all keys fitted with remote control. Turn ignition switch to position I. Wait approximately 10 seconds. Ensure clock LED illuminates.
NOTE: LED illuminates for approximately 5 seconds.
Switch ignition OFF and remove key, while LED illuminated. Programming mode activated for approximately 20 seconds (LED illuminated). Proceed as follows: Point key at receiver (located near interior lamp). Press and hold unlock button Fig. 1 [1]. After approximately 1 second key LED will flash once [3]. Press lock button 3-5 times Fig. 1 [2]. Release unlock button Fig. 1 [1]. Continue to point key at receiver until LEDs in clock and key have flashed 5 times. Repeat above procedure within 20 seconds to program remaining keys. To exit programming mode and extinguish clock LED: Switch ignition ON and OFF. Wait approximately 20 seconds

the keys needs to be initialised. put key in door lock or ignition barrel and press/hold the remote open button until led flashes on dash, release button and rremove key from lock, remote should now work

i presume little led in fob flashes when button pressed. Key needs to be initialised. Put key in door lock or ignition barrel and press unlock button watching led on dash, this should flash. remove key from lock, remote should now work