12 captured repliesDiscussion pagination complete · Source accounts, not a confirmed diagnosis
THIS DISCUSSION / SOURCE-DERIVED OVERVIEW
Discussion summary
YOUR RESEARCHEmbarrassing Problem....
Reported or suspected cause
alarm battery
Reported cause
No successful repair reported for this finding.
1
Identified cause
0
Suspected cause
0
Reported fixes
Read evidence and context
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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
electronis siren only - then problem is with the alarm battery
Leading evidence: 'alarm battery' (1 discussions report identifying this cause; no attributable repair resolution). Across 1 matching discussions, the most frequently mentioned possible cause is 'alarm battery' (1 discussions; 1 report identifying it and 0 suggest it). The most frequently discussed action is 'Clean /' (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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1
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Performed · outcome unconfirmed
the siren and the tilt sensor were fitted on all uk cars for thatcham cat 1 approval and are not in the fault memory software.
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
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Suggestion
You should also ask the garage to clean/replace the plugs to the back up siren.
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
Thanks, can this be replaced easily from somewhere like Halfords?
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
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Suggestion
You should also ask the garage to clean/replace the plugs to the back up siren.
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 called a service adviser where I get my car serviced and she said that it has likely reset itself, but all faults are stored on a memory chip and so are detected and examined when the car is next taken in for service.
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.
12 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.
1 acknowledgements have no verified action link; they do not establish a repair result.
Outcome without a verified action link
I took the car out the next day and had no more problems.
After I filled up (my 2003 Boxster S 986)at the petrol station yesterday, I turned on my ignition and my alarm went off! I turned the ignition off then on again, but the alarm kept going. Not knowing what to do, I slipped away, convinced that the full forecourt of customers were thinking I had hotwired the car. As I drove along, the alarm continued, stopping intermittently, so rather than retreating home via town I chose a quieter route. I nevertheless passed a few onlookers who showed no interest in the apparently stolen nice looking roadster.
Car is now in hiding in garage, and I daren't go out in it - anyone any idea why the alarm might do this?
Thanks in advance for your suggestions.
(I guess nobody bothered to report the "stolen" vehicle as no calls from concerned police).
Migration info. Legacy thread was 83699
turn the alarm on and off a couple of times, may do the trick
i think you may have a battery thats about to go flat?
ive found that sometimes you have just enough power to start it then the alarm goes off because the battery is flat
Migration info. Legacy thread was 83713
It would appear that the alarm battery back up siren is faulty. I take it there were no flashing indicators while the alarm was going off? If just the siren, and no horn, the siren is faulty or plug to it is corroded.
Migration info. Legacy thread was 84379
Thanks all for your input. I took the car out the next day and had no more problems.
I called a service adviser where I get my car serviced and she said that it has likely reset itself, but all faults are stored on a memory chip and so are detected and examined when the car is next taken in for service.
Otherwise, if it goes off again, then I'll take it in.
Migration info. Legacy thread was 84546
If the fault is in the battery back up siren the fault will not be stored in the alarm memory. the siren and the tilt sensor were fitted on all uk cars for thatcham cat 1 approval and are not in the fault memory software. Did the indicators flash or not when siren went off?
Migration info. Legacy thread was 85088
You should also ask the garage to clean/replace the plugs to the back up siren. In earlier models it is exposed to the elements, the connections rust and can then drain your main battery, which is a pain...
Migration info. Legacy thread was 85181
Not sure if the indicators were flashing when the siren went off as I was in the car the whole time, trying to get out of sight!
Plugs to the back up siren will certainly be looked at - this may explain why three weeks ago I had a flat battery. I thought it had gone flat as I had not used the car for three weeks, but perhaps rusty connections to the back up siren may have been the reason...?
Migration info. Legacy thread was 85825
Sounds like the alarm (backup) battery is flat.
Easy way to find out....... was the alarm just an electronic siren or did it alternate with the car horn ?
electronis siren only - then problem is with the alarm battery
dual tone siren - faulty sensor in car
Take it to the OPC - they can interrogate the system and find out the problem.
Migration info. Legacy thread was 86024
Dragging this up...
Does anyone know where the alarm battery is located? Tried searching here and on Rennlist but no joy, PET doesn't show it either. Have alarm sounding but no horn so thinking this may be the cause.
Thanks.
The alarm battery is within the siren itself, which is next to the main battery.
There is one nut holding it in place with a bracket for the tilt sensor.
