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wasz
Sepang


Joined: 28 Dec 2012
Posts: 2916


1999 Porsche 996 Carrera 2

PostPosted: Mon Feb 18, 2019 8:24 pm    Post subject: Remote fob (again) Flashes but no unlock Reply with quote

I replaced my remote battery not long ago. (early car 1 button).

The remote then worked intermittently for a week or two.

Now its stopped working.

The light flashes nice and bright on the remote when the button is pressed.

The light in the middle of the windscreen does not flash. (it flashes as it should when the car is locked)

I tried all the various reset procedures, turning the battery round etc.

Is the light in the windscreen supposed to flash in response to a remote signal? Mine doesn't.

----

Any ideas? Worth soldering a new switch on it?
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6523
Location: Brighton


PostPosted: Mon Feb 18, 2019 8:41 pm    Post subject: Reply with quote

Homage to GT4 ..

http://911uk.com/viewtopic.php?t=110233&highlight=reset+fob

The dash light should pulse on / off with the remote pressed .. if it doesnt then its either not recieveing the signal or its the wrong signal and the car ignores it .
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wasz
Sepang


Joined: 28 Dec 2012
Posts: 2916


1999 Porsche 996 Carrera 2

PostPosted: Mon Feb 18, 2019 10:35 pm    Post subject: Reply with quote

Aha!

Hooked the battery in the head up to my voltmeter

2.3v already!

Maybe my new battery was duff.

Another new battery in and it works again. And the windscreen led does flash with the remote pressed.

See how long this one lasts.
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easttorks964cab
Monza


Joined: 02 Jun 2008
Posts: 151
Location: East Yorks


PostPosted: Sat Feb 23, 2019 6:34 am    Post subject: Reply with quote

hey OP, any update on your fob.....mine does exactly the same. I put a new battery in, it works for a day, then it seems that the battery has drained and the fob stops working.
 
  
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thecarfixer
Monza


Joined: 03 Nov 2016
Posts: 166



PostPosted: Sat Feb 23, 2019 9:51 pm    Post subject: Reply with quote

easttorks964cab wrote:
hey OP, any update on your fob.....mine does exactly the same. I put a new battery in, it works for a day, then it seems that the battery has drained and the fob stops working.


I had a key head playing that game. Only thing was to replace it and get the new one coded to the car.
 
  
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wasz
Sepang


Joined: 28 Dec 2012
Posts: 2916


1999 Porsche 996 Carrera 2

PostPosted: Sun Feb 24, 2019 8:07 am    Post subject: Reply with quote

It is still working.

If it drains the battery again I have a new switch to solder in.

Apparently the switches do fail working and could form a path for battery drain. I.e. The spring fails a bit and doesn't completely disconnect.

If that fails then my car will then become a rare, stripped out manual entry model
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6523
Location: Brighton


PostPosted: Sun Feb 24, 2019 7:11 pm    Post subject: Reply with quote

wasz

Do me a favour young man ..

Lock the car with the key .. leave it 5 mins then unlock it .. wait over 10 seconds and see if the alarm goes off ..

As far as i know if the car is locked with the fob but unlocked with the key you have 10 seconds to turn the ign on or it will trigger .. the passenger door also wont unlock .. im wondering if it is the same as locking with the key or locking with fob and unlocking with the key ..

Basically what im trying to work out is if you switch to useing the key only is it best to start useing the key to lock the car before the fob gives up ..

i think so but your the guinnee pig Razz
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wasz
Sepang


Joined: 28 Dec 2012
Posts: 2916


1999 Porsche 996 Carrera 2

PostPosted: Thu Mar 07, 2019 7:23 pm    Post subject: Reply with quote

deMort wrote:
wasz

Do me a favour young man ..

Lock the car with the key .. leave it 5 mins then unlock it .. wait over 10 seconds and see if the alarm goes off ..

As far as i know if the car is locked with the fob but unlocked with the key you have 10 seconds to turn the ign on or it will trigger .. the passenger door also wont unlock .. im wondering if it is the same as locking with the key or locking with fob and unlocking with the key ..

Basically what im trying to work out is if you switch to useing the key only is it best to start useing the key to lock the car before the fob gives up ..

i think so but your the guinnee pig Razz



Yep alarm and horn goes off if I unlock with key and leave it, whether I locked with fob or key.

So locking with key arms the alarm.

Battery in my fob is dead again now. Looks like I will be visiting the electronics lab at work.
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deMort
Long Beach


Joined: 21 Mar 2015
Posts: 6523
Location: Brighton


PostPosted: Thu Mar 07, 2019 7:43 pm    Post subject: Reply with quote

Thanks for that .. it answers a question that had bothered me but had never got around to checking .

Re your fault .. it does sound like something is draining the battery in the fob .. iffy switch .. bitch to resolder though if replaceing .. my eyes just aint that good anymore .

it may well be the chip though as i think you would see the odd flash of the red led in the fob if it was a switch fault .
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