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Discussion summary
YOUR RESEARCHKey Opens Doors But Won't Start Car
Leading reported evidence
Recommend here, i removed the rfid transponder device
Suggestion or failed attempt
No successful repair reported for this finding.
0
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0
Unsuccessful attempts
1
Discussions
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Discussions that contain suggestions
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Suggestion
As recommended here, I removed the RFID transponder device from the old key (small black part just as shown in the picture in this thread).
Leading evidence: 'Recommend here, i removed the rfid transponder device' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Recommend here, i removed the rfid transponder device' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
I had the exact same problem and this solved it for me as well.
The plastic snap in the key head on my key broke and the battery door on the key head would not stay closed. I bought a new key case online. I transferred the electronics and metal key part from my original Porsche key to the replacement key case. When I push the lock/unlock button on the key head the car locks/unlocks just fine. However, when I put the replacement key in the ignition switch and turn it the car does not start. (The original key worked fine.) Any ideas on what to try to fix it?
Move the transponder pill from the old key to the new key. It's about the size of a grain of rice.
Yours may be in a different place in the key, but here is what they look like:
Does the black cylinder protect the transponder pill or is the pill the black cylinder? I'm only asking because mine is wedged into the key case and I don't want to damage the RFID chip prying the cylinder out.
Hey cds72911, Thanks for all the help! My key now locks/unlocks the doors and starts the car. Sorry about the confusion in my previous post. I was expecting a glass transponder pill similar to what you posted in your last message. My RFID chip is a black piece of plastic. The RFID chip must be embedded in it. When I cut it out of my OEM case and put it in the replacement case everything was good. Thanks again. jimbo8351
RFID transponder chip.
LOcation of transponder chip in key head.
This thread had exactly the info I needed! The plastic casing on my 997.1 key broke. I bought a new key shell online, and transferred the metal key and circuit board into it. This new key setup would unlock the doors and trunk but would not start the car. As recommended here, I removed the RFID transponder device from the old key (small black part just as shown in the picture in this thread). It was a major challenge to get it out of the old key and trim away enough of the plastic glued to it so that it would fit in the new key. Once I finally got it installed in the new key and closed the new key shell it works perfectly. Beautiful. Thanks so much for the help here.
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