Any comments? Thanks.
B102B-87 Passive key missing message.
U1000-00 central junction box short circuit to ground or power
U3000-49 rear junction box internal failure
U3002-81 central box from different car (VIN doesn't match)
Can used module be reprogrammed to match VIN?

 

Almost certainly related to this thread you posted about the battery. P.s. don't buy one from a junkyard. These cars - like all modern cars, with increasingly complex computers and communications networks - are really sensitive to battery issues.

Can you give a bit more on the history of the car?

 

Battery

 

I bought it dirt cheap. It seems like a few mechanics tried to fix it before me. These codes were left after I tried to erase all of them. Battery was connected to a charger and had enough volts.
I will start repairing/diagnosing codes.

 

Only speaking from my past experiences with Jaguars, and after 16 of them I can tell you regardless of what you think of your battery it was in the car when you bought it, so not knowing it's past history or if it's been compromised in the past I would just replace it before trying to track anything down. Or you can diagnose and repair all summer and then replace it in the fall because the weird and strange will not go away. Your call, just friendly advice, good luck.