5 captured repliesPartial discussion capture · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCH991.1 GTS Alarm Fault - Page 1 - 911/Carrera GT - PistonHeads UK
Reported or suspected cause
alarm module
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
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 report identifying a cause
1
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0 discussions have direct query context; 0 report a fix in that context. Other evidence may inherit the discussion’s subject.
Reported cause
I had an 992 C2S which exhibited exactly the same fault as yours after a few months, turned out to be a faulty alarm module which was replaced.
Leading evidence: 'alarm module' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'alarm module' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Disconnect battery' (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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Discussions that performed work without a confirmed outcome
1
Discussions that contain suggestions
1
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Suggestion · Original poster
I’ve disconnected the battery for the sanity of all - any top tips for recommissioning when I reconnect?
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.
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Performed · outcome unconfirmed · Original poster
Just to close this one off, in with the OPC and they replaced the siren module under warranty.
Tighten a loose connection can cause this (did in mine)
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
I assume when you disconnected the battery that the you found the clamps were properly tightened - a loose connection can cause this (did in mine).
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.
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Suggestion · Original poster
Second, and more likely, the siren module itself needs replacing (I’ve read this on the 911 forum).
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5 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
PistonHeads: 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.
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Evening all.
991.1 GTS, 2015, owned for only a few months and still under extended warranty. I generally leave the car on a trickle charger when not using, and last night the alarm randomly went off and kept activating very shortly after the car locked. I took the car off charge and closed the frunk, then locked with a double tap to deactivate the interior motion sensor.
Sadly, no joy and alarm started about 30 minutes later.
Two potential snags I can see;
First, the battery may be weak, exacerbated by the very cold weather (garage not heated….I know, I’m a pauper) and the charger is taking the voltage outside of the range and confusing everything.
Second, and more likely, the siren module itself needs replacing (I’ve read this on the 911 forum).
Question, has anyone had the same issue and if so what was the fix/cost/is it under warranty (siren, not battery)?
I’ve disconnected the battery for the sanity of all - any top tips for recommissioning when I reconnect? I’ve read the manual so just after some golden nuggets from experienced operators.
Makes a change from the normal ‘allocation/prices crashing/going up/my GT spec is better than yours’ threads!
If you have a CTEK or equivalent and it is showing green light on trickle then all should be well with the battery.
I assume when you disconnected the battery that the you found the clamps were properly tightened - a loose connection can cause this (did in mine).
If everything shut properly then the siren would be next on my list.
One for the dealer under warranty.
Discombobulate said:
If you have a CTEK or equivalent and it is showing green light on trickle then all should be well with the battery.
I assume when you disconnected the battery that the you found the clamps were properly tightened - a loose connection can cause this (did in mine).
If everything shut properly then the siren would be next on my list.
One for the dealer under warranty.
Thanks, appreciate it. It’s booked into the OPC in the new year.
Just to close this one off, in with the OPC and they replaced the siren module under warranty. Not that anyone on here actually gives a toss about helpful ownership hints and tips, as one can see from the plethora of value/spec threads one here.
Bincenzo said:
Evening all.
991.1 GTS, 2015, owned for only a few months and still under extended warranty. I generally leave the car on a trickle charger when not using, and last night the alarm randomly went off and kept activating very shortly after the car locked. I took the car off charge and closed the frunk, then locked with a double tap to deactivate the interior motion sensor.
Sadly, no joy and alarm started about 30 minutes later.
Two potential snags I can see;
First, the battery may be weak, exacerbated by the very cold weather (garage not heated….I know, I’m a pauper) and the charger is taking the voltage outside of the range and confusing everything.
Second, and more likely, the siren module itself needs replacing (I’ve read this on the 911 forum).
Question, has anyone had the same issue and if so what was the fix/cost/is it under warranty (siren, not battery)?
I’ve disconnected the battery for the sanity of all - any top tips for recommissioning when I reconnect? I’ve read the manual so just after some golden nuggets from experienced operators.
Makes a change from the normal ‘allocation/prices crashing/going up/my GT spec is better than yours’ threads!
I had an 992 C2S which exhibited exactly the same fault as yours after a few months, turned out to be a faulty alarm module which was replaced. (I’m presuming the alarm module/siren is pretty similar from 991.2 to 992….)
But what is it with Porsche car alarms, I’ve got a 996 which if left outside for a couple of weeks, and the battery level drops below a certain threshold, off goes the alarm…I would leave it on a trickle charger, but it’s nowhere near a plug, and I just forget….
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