1994 xj12 crossed battery cables
I recently obtained a 1994 XJ12 in exquisite condition showing only 86K miles.
The only problem was a tired battery. Car ran great with everything working properly. When battery was replaced the tech connected it backward (only momentarily). Though the windows, sunroof etc. still work, the dash doesn't light up and the starter does not engage, nothing. Just dead. I"ve replaced the SECURITY ELECTRONIC CONTROL MODULE as advised by the local foreign car specialist and got the same result. Any help will be appreciated as the local Jag dealer gets $160 an hour for diagnostics.. Thanks XJ12 Saloon
The only problem was a tired battery. Car ran great with everything working properly. When battery was replaced the tech connected it backward (only momentarily). Though the windows, sunroof etc. still work, the dash doesn't light up and the starter does not engage, nothing. Just dead. I"ve replaced the SECURITY ELECTRONIC CONTROL MODULE as advised by the local foreign car specialist and got the same result. Any help will be appreciated as the local Jag dealer gets $160 an hour for diagnostics.. Thanks XJ12 Saloon
Hello,
I'm Really sorry to know you're having this trouble with your Jaguar. Someone will be along shortly to direct you to the correct section where members can help you.
Welcome to the forums from ElinorB.
(';')
I'm Really sorry to know you're having this trouble with your Jaguar. Someone will be along shortly to direct you to the correct section where members can help you.
Welcome to the forums from ElinorB.
(';')
Welcome.
That was a huge no-no, but you know that already.
Even a simple "flash" the wrong could do all sorts of electrical damage.
I suggest a quickie repost in the XJ40 section, where answers should be available.
That was a huge no-no, but you know that already.
Even a simple "flash" the wrong could do all sorts of electrical damage.
I suggest a quickie repost in the XJ40 section, where answers should be available.
Welcome to the forum xj12saloon,
Ouch!
Good to have you with us at Jaguar forums.
Follow this link XJ40 ( XJ81 ) - Jaguar Forums - Jaguar Enthusiasts Forum to the XJ40 forum for help, advice and information. The 'HOW TO' thread at the top is a good place to start for info on regular issues.
Please remember to add vehicle details to your Signature to help others to give relevant advice. Go to the User CP button on the left of the top menu bar, then Settings & Options under Your Control Panel. Select Edit Signature and enter the details.
You can also visit the USA Lower Atlantic Region forum by following this link https://www.jaguarforums.com/forum/usa-lower-atlantic-nc-sc-fl-ga-66/ to find other members in your region.
Enjoy the forums.
Graham
Ouch!

Good to have you with us at Jaguar forums.
Follow this link XJ40 ( XJ81 ) - Jaguar Forums - Jaguar Enthusiasts Forum to the XJ40 forum for help, advice and information. The 'HOW TO' thread at the top is a good place to start for info on regular issues.
Please remember to add vehicle details to your Signature to help others to give relevant advice. Go to the User CP button on the left of the top menu bar, then Settings & Options under Your Control Panel. Select Edit Signature and enter the details.
You can also visit the USA Lower Atlantic Region forum by following this link https://www.jaguarforums.com/forum/usa-lower-atlantic-nc-sc-fl-ga-66/ to find other members in your region.
Enjoy the forums.
Graham
Welcome to Jaguar Forums xj12saloon,
Good to have you with us.
Enjoy the forum.
If you haven't done so already you should add your car details to your signature to help others to help you.
If you need help with getting around and using the forum follow this link for some help Forum Help
Good to have you with us.
Enjoy the forum.
If you haven't done so already you should add your car details to your signature to help others to help you.
If you need help with getting around and using the forum follow this link for some help Forum Help
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Hi and welcome aboard, its good to have you here with us here at Jaguarforums
Any useful site information you may need such as how to post pictures, edit signatures, add videos, using the
search facility etc, can be found here within the following link Using JF "How To"
There are lots of members local to you with the same interests with info on local dealers and possible meets.
Regional - Jaguar Forums - Jaguar Enthusiasts Forum
Need a Manual, a TSB, or General Info' about your Jag? Check out our >> DOWNLOAD AREA <<
Any useful site information you may need such as how to post pictures, edit signatures, add videos, using the
search facility etc, can be found here within the following link Using JF "How To"
There are lots of members local to you with the same interests with info on local dealers and possible meets.
Regional - Jaguar Forums - Jaguar Enthusiasts Forum
Need a Manual, a TSB, or General Info' about your Jag? Check out our >> DOWNLOAD AREA <<
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