3 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHTricky airbag problem 996 C2 '98 (new one?)
Leading reported evidence
Check today
Performed · outcome unconfirmed
No successful repair reported for this finding.
0
Reported fixes
0
Unsuccessful attempts
1
Discussions
Read evidence and context
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Discussions that performed work without a confirmed outcome
1
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Performed · outcome unconfirmed · Original poster
The airbag ECU is (physically) present, I checked today...
Leading evidence: 'Check today' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check today' (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.
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Discussions that performed work without a confirmed outcome
1
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Performed · outcome unconfirmed · Original poster
I disconnected the airbag control unit and sent it to a guy who saved my VIN info etc and then reflashed the unit.
Reconnect unit the fault stayed the same (fault code 1265)
Performed · outcome unconfirmed
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 performed work without a confirmed outcome
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Performed · outcome unconfirmed · Original poster
Once I reconnected the unit the fault stayed the same (fault code 1265).
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 performed work without a confirmed outcome
1
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Performed · outcome unconfirmed · Original poster
Ok - it seems to be many used airbag control units for sale from Boxsters and 996es on eBay..
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Discussions that contain suggestions
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Suggestion · Original poster
I got the advice from an independent Porsche mechanic to check with PIWIS too...
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Suggestion · Original poster
I am having a little trouble reading the wiring diagram so far, but using the multimeter I have at least found out that there is a steady 12V on 2 pins (in the airbag control unit connector) when the ignition is on.
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.
3 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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0 acknowledgements have no verified action link; they do not establish a repair result.
Generation: 20261026T191851Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources
My 996 c2 '98 has had a problem with the airbag light for some time. I finally decided to do something about it due to failure to pass inspection :bang head:
Ok, here goes nothing...
I have analyzed using Durametric, result is fault codes in engine ECU and alarm system. (1265 in ECU and 16 in alarm system) The specific ECU for the airbag won't respond to Durametric at all (v5.1 professional). The 1265 is clearable but the light does not disappear and code reappears after a short while. The airbag ECU is (physically) present, I checked today...
There is nothing about problems with connectors in the steering column or seat belt buckles, but maybe these fault codes appear in the airbag ECU?
I know there is the possibility to replace the airbag ECU (at a substantive cost including VIN coding at Porsche). It is not possible to buy a used unit, therefore I would like to avoid replacing the unit without feeling secure that I have to... I got the advice from an independent Porsche mechanic to check with PIWIS too... possibly PIWIS could connect to the airbag ECU?
(The car has not been repaired as result of a substantial accident. The airbag unit should not be expired due to three deployments.)
Any ideas?
Ok - it seems to be many used airbag control units for sale from Boxsters and 996es on eBay.. can these be reprogrammed by using pst2 or PIWIS. (For sure not by using Durametric I guess?)
Anyone with experiences to share??
Ok so here is the latest info:
I disconnected the airbag control unit and sent it to a guy who saved my VIN info etc and then reflashed the unit. He couldn't test it afterwards though since he only works directly to the memory in the unit. Once I reconnected the unit the fault stayed the same (fault code 1265).
Now I am down to 2 possible error sources:
1) Hardware error in the control unit
2) Wiring troubles in the loom between the ECU/DME and the airbag control unit
PLease let me know if you have thoughts on how I should proceed
I am having a little trouble reading the wiring diagram so far, but using the multimeter I have at least found out that there is a steady 12V on 2 pins (in the airbag control unit connector) when the ignition is on.
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