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omigod
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Joined: 22 Sep 2019
Posts: 18
Location: Saltburn-by-the-Sea


PostPosted: Tue Jan 07, 2020 9:25 pm    Post subject: what are these for? Reply with quote

Mooching around under the frunk today and found these unused connectors near the cabin filter area (passenger side of the battery). They're quite corroded so have not been used for a while but if somebody could identify them it would satisfy my curiosity.
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Alex
Le Mans
Le Mans


Joined: 06 Mar 2014
Posts: 17296
Location: The Ribble Valley, Lancashire

2000 Porsche 996 Carrera 4

PostPosted: Tue Jan 07, 2020 9:30 pm    Post subject: Reply with quote

They don't look standard and are probably from some retro fitted tracker or something.
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Marky911
Sepang


Joined: 04 Jun 2009
Posts: 2801



PostPosted: Tue Jan 07, 2020 10:19 pm    Post subject: Reply with quote

Flux Capacitor. Definitely.
 
  
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HSC911
Dijon


Joined: 23 Jul 2014
Posts: 7050
Location: Bedford


PostPosted: Tue Jan 07, 2020 10:25 pm    Post subject: Reply with quote

Marky911 wrote:
Flux Capacitor. Definitely.


Agree

Grin
 
  
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Shalmaneser
Trainee


Joined: 11 Nov 2019
Posts: 63



PostPosted: Tue Jan 07, 2020 11:37 pm    Post subject: Reply with quote

Almost certainly an old alarm or tracker. I've got a box with wires coming out of it in that area that needs to be investigated eventually.
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deMort
Dijon


Joined: 21 Mar 2015
Posts: 7806
Location: Brighton


PostPosted: Wed Jan 08, 2020 7:16 pm    Post subject: Reply with quote

Those are the wiring plugs for the factory fitted alarm tilt sensor and siren .

It was common for the tilt sensor to corrode on the wiring pins and give false alarm triggers , there is a mod whereby a new sensor is fitted under the passenger seat and the tilt sensor removed from next to the battery and binned .

I would hazard a guess that you have no siren just a horn for the alarm and the tilt sensor has been coded off .
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omigod
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Joined: 22 Sep 2019
Posts: 18
Location: Saltburn-by-the-Sea


PostPosted: Wed Jan 08, 2020 7:34 pm    Post subject: Reply with quote

Yes there is no siren just the horn for the alarm - which goes off intermittantly as it pleases but that's a job for another day.

Thanks Demort!
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deMort
Dijon


Joined: 21 Mar 2015
Posts: 7806
Location: Brighton


PostPosted: Wed Jan 08, 2020 8:00 pm    Post subject: Reply with quote

Ok .. i would suggest you get the coding checked for the car as i suspect the tilt sensor and siren have been removed but not coded off .. lets just say ... i've seen it before !

Alarm coding and tilt sensor / alarm siren MUST be coded to not fitted .
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She's not going until july 2020 though .



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omigod
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Joined: 22 Sep 2019
Posts: 18
Location: Saltburn-by-the-Sea


PostPosted: Wed Jan 08, 2020 8:12 pm    Post subject: Reply with quote

When locking the car with the remote I get a single "beep" from the horn.
After having a few false alarm cycles I now lock it and let it arm then unlock it but don't open any doors, it re-locks after 30 seconds or so - I believe this leaves the alarm de-activated.

Last owner had it 100% garaged so probably left it unlocked
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deMort
Dijon


Joined: 21 Mar 2015
Posts: 7806
Location: Brighton


PostPosted: Wed Jan 08, 2020 8:21 pm    Post subject: Reply with quote

A single beep from the horn indicates the car is seeing a problem .. often the center console cubby lid is open .. in this case it is possible its to do with the missing tilt sensor and siren.

I would suggest .. get an Indy to check that the tilt sensor and siren are actually coded off to rule that out .. as this does cause random alarm triggers if removed but not coded off .

i would also get them to look at the alarm activation states and the alarm event memory .. one is what has caused the alarm to go off the last 10 times and one tells us what faults the car can see for the last 10 locking cycles .

It's a half hour labour charge so at my garage ( where i work and not own ) its circa £50 including vat .
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She's not going until july 2020 though .



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omigod
Newbie


Joined: 22 Sep 2019
Posts: 18
Location: Saltburn-by-the-Sea


PostPosted: Wed Jan 08, 2020 8:42 pm    Post subject: Reply with quote

That may be worth looking at Demort - my local indie is only 15 mins away.
Brighton is too far sadly....
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deMort
Dijon


Joined: 21 Mar 2015
Posts: 7806
Location: Brighton


PostPosted: Wed Jan 08, 2020 8:45 pm    Post subject: Reply with quote

omigod wrote:
That may be worth looking at Demort - my local indie is only 15 mins away.
Brighton is too far sadly....


Lol .. yup i looked where you live .. pretty much opposite ends of the country !

Get the garage to check it out .. i can always evaluate the report if needed but i suspect they will nail the fault .. we mechanics are all the same as far as i'm concerned .. we just don't all reply here Very Happy
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She's not going until july 2020 though .



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Lj911
Trainee


Joined: 20 Jan 2014
Posts: 82



PostPosted: Mon Jan 13, 2020 4:41 pm    Post subject: Reply with quote

slightly off topic (ish)
i have had troubles with my alarm going off randomly, was told that its the alarm siren's internal battery failing, making it go off ..... this apparently can't be replaced/accessed so it requires a new alarm siren....seemed strange that the siren has its own battery?? can someone confirm that this is correct please...
i had a new (expensive) siren on order from porsche but now they can't supply!
as the corroded pins were mentioned above, which i had, and have since cleaned up in readiness for a new siren, I'm wondering if i just put the old siren back on now that the connections are all cleaned up and see if this was the issue? what do you guys reckon....??
 
  
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deMort
Dijon


Joined: 21 Mar 2015
Posts: 7806
Location: Brighton


PostPosted: Mon Jan 13, 2020 8:25 pm    Post subject: Reply with quote

Lj911 wrote:
slightly off topic (ish)
i have had troubles with my alarm going off randomly, was told that its the alarm siren's internal battery failing, making it go off ..... this apparently can't be replaced/accessed so it requires a new alarm siren....seemed strange that the siren has its own battery?? can someone confirm that this is correct please...
i had a new (expensive) siren on order from porsche but now they can't supply!
as the corroded pins were mentioned above, which i had, and have since cleaned up in readiness for a new siren, I'm wondering if i just put the old siren back on now that the connections are all cleaned up and see if this was the issue? what do you guys reckon....??


Corroded pins can cause issues .. clean or replace basically .

The siren has an internal battery .. it can't be replaced .. well not as standard .. it might be possible but as a rule its a single unit and is replaced as such .

To prove this is the fault .. code it off and unplug it .. although i will say i have seen a siren fault cause alarm triggers in the past on many models .
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My Daughter's Crowdfunding has hit the target .

Thank you all so Very much .

She's not going until july 2020 though .



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Griffter
Nürburgring


Joined: 22 May 2016
Posts: 385



PostPosted: Tue Jan 14, 2020 7:08 am    Post subject: Reply with quote

Lj911 wrote:
seemed strange that the siren has its own battery??


It’s to prevent thieves silencing the alarm by simply disconnecting the car battery.
 
  
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