Planet-9

Key Fob Replacement

Add to repair workspace

New repair projectOpen repair workspace

Original source

8 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHKey Fob Replacement

Leading reported evidence

Replace porsche-key-head-997-2f987-key-head-replacment.html

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Explicit resolution reports before identified causes, performed actions and suggestions. Within each level, matching component labels precede direct query mentions and inherited thread context; successful versus unsuccessful discussion counts, owner confirmations and independent discussion support determine order. This is not a probability of success.

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
http://www.planet-9.com/reviews/ele.../electronics/p376-replacing-porsche-key-head-997-2f987-key-head-replacment.html
Original post Read captured discussion
Key Fob Replacement

Read full discussion summary

Leading evidence: 'Replace porsche-key-head-997-2f987-key-head-replacment.html' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace porsche-key-head-997-2f987-key-head-replacment.html' (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.

Source reports, not a diagnosis or a success probability. Counts refer to discussions and can overlap.

Read captured replies

1 matching discussions · 8 captured posts examined · 1 partial discussions

Compare 1 other evidence results

Use tapatalk

Suggestion or failed attempt

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
Sent from my iPhone using Tapatalk
Original post Read captured discussion
Key Fob Replacement

Frequently discussed actions (2)

These are separate views of the same evidence. Frequency alone does not establish a fix, and these counts must not be added together.

Replace porsche-key-head-997-2f987-key-head-replacment.html

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
http://www.planet-9.com/reviews/ele.../electronics/p376-replacing-porsche-key-head-997-2f987-key-head-replacment.html
Original post Read captured discussion
Key Fob Replacement

Use tapatalk

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that contain suggestions: 1

0 original-poster resolution reports. Counts can overlap; they are not unique people or a success rate.

0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.

Suggestion
Sent from my iPhone using Tapatalk
Original post Read captured discussion
Key Fob Replacement

Coverage and how to read this overview

Counts describe captured discussions, not unique people or a diagnosis. Author identities are not reliably stored. Exact duplicate evidence is counted once across matching discussions; one discussion counts at most once per action/state. Multiple repairs reported together remain a combination. Suggestions and failed attempts do not establish a fix. Matches cover whole discussions and can include related faults, model variants and incomplete threads.

8 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.

Planet-9: 1 discussions

0 evidence records excluded for query context · 0 excluded by outcome qualification · 0 adjusted by outcome qualification.

1 acknowledgements have no verified action link; they do not establish a repair result.

Outcome without a verified action link
Problem solved!
Original post Read captured discussion
No unique explicit quoted action; no causal link assigned

Generation: 20261026T074343Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1Original post

My OEM key fob was badly worn out. Purchased new fob shell from eBay for $12. Excellent quality, very satisfied. For about 10 minutes moved all the electronics to the new fob. Now the car locks and unlocks but does not start. Do I need to take it to the dealer for reprogramming or I can do it by myself? The spare key works fine. I just cannot believe this needs to be reprogrammed after each battery replacement. Any ideas? I did quite a bit of research but didn't come up with anything useful. Thanks!

POST 2Original post

Do you mean the white part of my picture? Sent from my iPhone using Tapatalk

POST 3Original post

No. Here are the keys.

POST 4Original post

Sounds like you forgot to swap the "pill" from the old key head.

POST 5Original post

Problem solved! Thank you to berty987 and his article http://www.planet-9.com/reviews/ele.../electronics/p376-replacing-porsche-key-head-997-2f987-key-head-replacment.html My mistake was not paying attention and removing the graphite sealed transponder from the old fob. This transponder contains the vehicle specific code which the receiver reads to disable the immobilizer. The transponder is glued to the key and it took me about 45 minutes to remove it without damaging it. Once installed in the new fob, the car starts, locks unlocks and everything functions properly. Cost $12 bucks+10 min. to transfer electronics + 45 min. to transfer the transponder + 2 hours researching the forums like crazy = new key! Very happy! Best!

POST 6Original post

You are correct. Live and learn. I was wondering what was that and thought it is some kind of radio interference shield. Obviously wrong. The funny thing is when I realized what it is I put it in my pocked, got the new key and went to the car. It started immediately. I bet you it doesn't take much to read this code from the transponder and replicate it to as many "pills" as you called it as you want. Will research further.

POST 7Original post

I did the same thing on my first one. The RFID transponder is easy to miss, since it blends with the socket and black plastic on the interior of the key. I love those $12-15 ebau keys though. Had to get another one, as one of the alarm buttons popped out. Now I am flush with spare parts. So much better than $450 OEM.

POST 8Original post

The real question is why the transponder is glued into the case. There is no technical reason whatsoever why it could not be mounted on the main PCB. If it was mounted on the main board, transferring the parts takes 5 minutes and you can teach your dog to do it. When glued into the case it makes it much more difficult and risky to break the transponder. So why is it there? The answer? $400 to the dealer and several hours of your time. There you go!

This is a source reference. Confirm exact model applicability in the original material.