Car Battery dying , even after new battery change

...well there is so much to say about this car, but let's start with your codes, shall we--- P1638 is "CAN link ecm/instm circuit/network malfunction P1603 is EEPROM Malfuntion (which is electronically erasable programmable read-only memory) if this helps P1000 is NOT a Jaguar trouble code P1793 is Air Intake Volume Malfuntions

...what I think is going on here is that the chassis ground (the ground black cable going to the chassis/ground is clobbered up and not letting good solid many amps through and creating a "brown out" condition with your electronics...it cannot go to ground, so it goes where it shouldn't is the scourge of galvonic semi-conductor technology. What you must do is break out the garden hose and with the blaster setting, blast away the bolt that connects the ground, then disassemble, wirebrush and re-tighten this 1/0 battery cable and the one that goes to the engine block as this is going to need to pull 300 Cold Cranking Amps on startup...and will heat and start all things touching or nearby on fire...we can't have that...make it a solid many amp conneciton...battery if new should not give us any trouble, but if you have a multimeter check it for 12.5 not running and 13.5 or more while running~

thanks for ignoring me, buddy---I worked my ass off to bring this information to you for NO PAY~! and don't even get a ho-ho-ho, aye matey, top-o-the mornin'-here's spit in your eye, rub-of-the-brush, cash on the barrelhead, pet robot needs feeding and maintenance-