911uk

Alarm going off

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5 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis

THIS DISCUSSION / SOURCE-DERIVED OVERVIEW

Discussion summary

YOUR RESEARCHAlarm going off

Leading reported evidence

Replace battery (was 5 years old)

Performed · outcome unconfirmed

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

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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

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.

Performed · outcome unconfirmed · Original poster
He has changed the battery (was 5 years old) but the problem has not gone away.
Original post Read captured discussion
Alarm going off

Frequently discussed work

Check any water ingress

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
Finally has he checked for any water ingress under the passenger's seat from blocked drain holes under the trunk or in the sun roof causing electric faults?
Original post Read captured discussion
Alarm going off

Read full discussion summary

Leading evidence: 'Replace battery (was 5 years old)' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Check any water ingress' (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 · 5 captured posts examined · 0 partial discussions

Compare 2 other evidence results

Check any water ingress

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
Finally has he checked for any water ingress under the passenger's seat from blocked drain holes under the trunk or in the sun roof causing electric faults?
Original post Read captured discussion
Alarm going off

Check these and fault codes

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
I would start with checking these and fault codes with a tester as it will tell you the problem .
Original post Read captured discussion
Alarm going off

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.

Check any water ingress

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
Finally has he checked for any water ingress under the passenger's seat from blocked drain holes under the trunk or in the sun roof causing electric faults?
Original post Read captured discussion
Alarm going off

Check these and fault codes

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
I would start with checking these and fault codes with a tester as it will tell you the problem .
Original post Read captured discussion
Alarm going off

Replace battery (was 5 years old)

No successful repair reported for this finding.

0
Reported fixes: 0
Unsuccessful attempts: 1
Discussions

Read evidence and context

Discussions that performed work without a confirmed outcome: 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.

Performed · outcome unconfirmed · Original poster
He has changed the battery (was 5 years old) but the problem has not gone away.
Original post Read captured discussion
Alarm going off

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.

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

911uk: 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: 20261026T191851Z · outcome-qualification-6. Deterministic extraction; no AI model inference. How we use sources

POST 1 / ORIGINAL POSTEROriginal post

A pal of mine has a "P" reg 996 coupe with a GT3 aero pack on it and it's his pride and joy.... Lately the alarm has been going off when parked, for no reason. Turning on the engine switches off the alarm, but costs a fortune in petrol... :grin: He has changed the battery (was 5 years old) but the problem has not gone away. Does anyone have any experience of this and how to remedy? or is it a visit to an auto electrician? Thanks.

POST 2Original post

P reg, wow, must be a very early one, only ever seen them on an R onward... First port of call in alarm problems is usually the centre console cubby microswitch. I wonder if the alarm stores a code, to show what triggered it. :?:

POST 3 / ORIGINAL POSTEROriginal post

Thanks Robert, on reflection you are probably right, I think it's a private plate with his initials..... Anyone else got any ideas about the alarm?

POST 4Original post

Normally low battery causes this to happen. Although it's a new one could something be staying on to drain the battery when he's parked it up? Has he had recent upgrades to the electrics such as a new stereo that's not been earthed correctly? Finally has he checked for any water ingress under the passenger's seat from blocked drain holes under the trunk or in the sun roof causing electric faults? Hope this helps some.

POST 5Original post

If you put a tester on the car you can see the last 10 causes of alarm activation .. you can also see the last 10 problems the car saw when alarmed . I would start with checking these and fault codes with a tester as it will tell you the problem . Alarm events . Alarm activations . Both are sub sections of the Alarm CU .

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