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Posted: Mar 19, 2010 2:27:57 pm
Liam



Have a dead battery in my 964 and looking to replace it myself - I have heard there are problems with the alarm and immobilizer when reconnecting - all help appeciated

Posted: Mar 19, 2010 3:41:51 pm
MarkJ



had my battery disconnected several times with my 964 Liam and had no problems. Is it a Porsche alarm system or after market? (mine was aftermarket).

Only foreseeable problem is making sure you have the code for your stereo !

I think the ECU gets re-booted when you disconnect too, but only a temporary problem until it resets itself.
Sprightly 1134kg and falling.

Posted: Mar 19, 2010 4:12:45 pm
Pete



You shouldnt have a problem with a battery change.  You might lose the code for your stereo, but thats about it.

If you want to be safe, then I would suggest running a parallel 12v supply while you make the change over.  However, I'm pretty sure you'll be fine as Mark says.


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