01 XJR Battery dead, keys won't open trunk
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Porsche407 (11-23-2012)
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Porsche407 (11-23-2012)
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Probably a silly post, but I'm guessing the 1999 and 2001 are different in this respect? I've actually got a keyhole on the left of the XJR Emblem for the trunk.
![](https://www.jaguarforums.com/forum/attachments/xj-xj8-xjr-x308-27/26520d1353795226-01-xjr-battery-dead-keys-wont-open-trunk-wp_20121124_001.jpg)
And just for future, here is the Positive Post under the hood. I use this to connect a battery charger for my RC Airplanes and Heli's.
![](https://www.jaguarforums.com/forum/attachments/xj-xj8-xjr-x308-27/26521d1353795226-01-xjr-battery-dead-keys-wont-open-trunk-wp_20121124_002.jpg)
![](https://www.jaguarforums.com/forum/attachments/xj-xj8-xjr-x308-27/26520d1353795226-01-xjr-battery-dead-keys-wont-open-trunk-wp_20121124_001.jpg)
And just for future, here is the Positive Post under the hood. I use this to connect a battery charger for my RC Airplanes and Heli's.
![](https://www.jaguarforums.com/forum/attachments/xj-xj8-xjr-x308-27/26521d1353795226-01-xjr-battery-dead-keys-wont-open-trunk-wp_20121124_002.jpg)
![](https://www.jaguarforums.com/forum/attachments/xj-xj8-xjr-x308-27/26522d1353795226-01-xjr-battery-dead-keys-wont-open-trunk-wp_20121124_003.jpg)
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Porsche407 (11-25-2012)
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Porsche407 (11-25-2012)
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Thanks to everyone for the help! Found the terminal and tried jumping it again. With a GOOD ground it roared to life. Next problem... ran it for 10 minutes then turned it off for 30 seconds hit the key again and it started running thru the diagnostics and died. Any ideas? Cables look new
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![Default](/forum/images/icons/icon1.gif)
Thanks to everyone for the help! Found the terminal and tried jumping it again. With a GOOD ground it roared to life. Next problem... ran it for 10 minutes then turned it off for 30 seconds hit the key again and it started running thru the diagnostics and died. Any ideas? Cables look new
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![Default](/forum/images/icons/icon1.gif)
As your battery was completely dead, the computers will have to re-learn everything, so get her running again, with preferably a NEW battery and go for a 30 minute drive, all should be good after that. These cars are particularly sensitive to partially discharged batteries and can throw up all sorts of error codes so just get a new battery and all should be good.
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