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Date: Thu, 26 Dec 2002 23:55:58 +0000
From: Grunff <grunffnopsam.com>
Subject: Re: Battery replacement Nightmare!


Gozer wrote: > It may have depended on the order in which you disconnected. Should be > neg(-) then pos(+) terminals. It's also my feeling that taking them off and > not letting them bobble near the terminals causing brief reconnects and > surges of power back to the system is very important. It's best to take > them off and wrap them with something non-conductive to prevent this. When > you've got the new battery in, reconnect pos then neg (reverse removal > order). As annoying as it may seem, the alarm system may be reacting > exactly as it should for the protection of the car. I've removed the > battery in my '99 9-3 several times with the method outlined above without > any problems. It makes no difference whatsoever whether you disconnect -ve then +ve or other way round - neither the battery nor the car's electronics would/could know the difference. There is a good argument for disconnecting the -ve first - but it's a safety argument, and has nothing to do with the electronics. If while disconnecting the -ve your spanner touches car bodywork, nothing happens. If the same happens while you're disconnecting the +ve, then if you've already disconnected the -ve, again, nothing happens. -- Grunff

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