Hi there, I've been dealing with battery drain after a service visit, seems pretty clearly like the issue I've read about here with OBD port and the energy management module.

I followed directions and disconnected battery, stepped on the brake for a bit to clear any capacitors etc -- and then before I left it for 30 minutes I closed the boot because it was raining.

So, now I have a car with disconnect battery and trunk closed. How can I get it open!?!? The normal button doesn't work of course, and while I can access the passenger compartment I still have no power. Surely there is a way to use the manual emergency key to open the trunk/boot/luggage compartment? Is there a key hole behind the license plate?

 

There is no keyhole at the rear, the only one is the one you must have used already under the door handle to access the passenger compartment.
You are not the first owner to be in this dilemma and although the solution is not obvious I am sure someone here has solved it, search is your friend!

 

It’s complex but this thread has the solution, I believe. He gets his trunk opened in post 39 after applying power to a specific pin in a specific connector

https://www.jaguarforums.com/forum/f...e-help-246122/

 

You should be able to jumper the front connection on the car to get enough power to pop the rear open.

 

This won't work and has been suggested before.
Coz the battery has been completely disconnected.

 

It's too bad the OP never came back and posted pictures like he indicated. I'm sure that would have helped you.

 

I think connecting power to the front jump posts should work. Didn’t the other guy disconnect something in the trunk in addition to the battery? Note that a battery tender would not work, as those have to detect some voltage present before they turn on. You need a real 12V charger, or another battery (or jump from another car.)

 

Yes, this works. I made the dumb mistake of closing my trunk ('14 Convertible) when the battery was disconnected. I jumped the front posts to the battery on my other car and the trunk release switch inside the car worked and opened the trunk.