fullymatted.
Back to search
986Forum

Immobilizer Central Locking Unit Questions for 1999 - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Add to repair workspace
Open repair workspace
Original source
7 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHImmobilizer Central Locking Unit Questions for 1999 - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Leading reported evidence

Run '98 boxster

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 · Original poster

I have a good running '98 Boxster.

Immobilizer Central Locking Unit Questions for 1999 - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Read full discussion summary

Leading evidence: 'Run '98 boxster' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Run '98 boxster' (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 · 7 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Set from a 97-99 986

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

You'll need a set from a 97-99 986

Immobilizer Central Locking Unit Questions for 1999 - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Set from the same car

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

You need to get the following parts as a set from the same car.

Immobilizer Central Locking Unit Questions for 1999 - 986 Forum - The Community for Porsche Boxster & Cayman Owners
Frequently discussed actions (3)

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

Run '98 boxster

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 · Original poster

I have a good running '98 Boxster.

Immobilizer Central Locking Unit Questions for 1999 - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Set from a 97-99 986

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

You'll need a set from a 97-99 986

Immobilizer Central Locking Unit Questions for 1999 - 986 Forum - The Community for Porsche Boxster & Cayman Owners

Set from the same car

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

You need to get the following parts as a set from the same car.

Immobilizer Central Locking Unit Questions for 1999 - 986 Forum - The Community for Porsche Boxster & Cayman Owners
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.

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

  • 986Forum: 1 discussions

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

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

Generation: 20261027T003124Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

I bought a 1999 Boxster 5 speed without an immobilizer under the drivers seat at auction over the weekend. It got wet at some point and the previous owner took the seats out and took it out. Neither of the seats have any electrical boxes under them. Apparently it has sat for several years. I only have one key and it appears to be a valet key with a small grey head. What would I need to do to get a replacement immobilizer? Would I need to get new keys since they are tied to it? What am I looking at as far as pulling an one out of a wrecked car? What years would work? 1997 to 1999? I'd like to try to get it running again. It looks like the car was pretty well taken care of prior to sitting.

POST 2Original post

You need to get the following parts as a set from the same car. Years 97-00. 1. Key head. 2. Emobelizee reader on ignition key. 3. Alarm/ impbilizer module under driver seat. 4. ECU in trunk. You can fine complete sets on eBay, or just contact Woody on the forum. http://986forum.com/forums/boxster-parts-sale-wanted/52469-parting-out-whole-lot-boxsters.html

POST 3 / ORIGINAL POSTEROriginal post

Is it safe to swap in a game I'd known set to get the car running? Or do I risk ruining the good set in any way? I have a good running '98 Boxster.

POST 4Original post

that would be the easiest way to test it, but I have heard of immobilizer losing its coding to the keys when the battery is disconnected, I guess its a risk isnt it, I bought a complete set for my boxster as it like yours had no immob module ,mine also had no key or ECU haha so heres hoping it works

POST 5Original post

Make sure the set you get has the vin from the vehicle it came out of. I've never done it but I believe auto or manual sets are interchangeable. The auto transmission has it's own computer. You'll need a set from a 97-99 986

POST 6 / ORIGINAL POSTEROriginal post

Thanks for the input guys. Rusty69911, was yours pretty much a situation of plug everything in and go? Or was there more to it? I may swap the ones off of my '98 and give it a try before investing much more into it. I'll be sure to get the VIN number off the donor car.

POST 7Original post

I havent got to that stage yet, I have to replace my engine harness too as it has been damaged, heres hoping its that simple, shouldnt be any issues just plug and play I would guess for you, mines a bit more work haha cheers Russ...

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