Probably a dirty or corroded joint/microswitch in the fob, open up key and clean with cellulose thinners all soldered joints - flux comes off solder and causes dry joints. blow it dry and reconnect, make sure small springs are extended slightly for fob battery connection to be tight.
SOURCE: Porsche 2000 911 Carrera. Key fob problem
each vehicle is different put the key in the ign. turn key on press door lock/unlock at the same timehold button for 10 sec see if any lights on the dash inst. panel blink if they do that means that the key fob was programmed to your vehicle i recommend a new key fob this will give you definative instructions on how to reprogram your fob
SOURCE: porsche key fob
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.
SOURCE: Door Locking Problem
Hi Bgood,
I had the same problem. I locked and unlocked the car with the engine run several time utilizing the dashboard lock button. That fix my problem.
v/r
BM
SOURCE: My key fob remote will not unlock car doors but will start car
Here you go.If you can't read it I can email it to you.
SOURCE: My Porsche Cayenne S Key fob no longer unlocks the Door
unlock the door then press the lock button on remote and hold down for 20/30 secs.manual does say hold button.....
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