PLEASE HELP Nothing works after battery installation

[hova1222]

So my oem battery was dying and I replaced it with a duralast gold from autozone. My father has a shop and has a Schumacher/5 Ah battery memory saver machine that you plug into the car computer under the steering wheel so you wont lose your factory settings. he frequently uses it on many cars so you wont lose your basic functions like factory alarm and it works everytime.

anyways, we replaced the battery and had the battery memory saver machine plugged into the computer so when we completely removed the battery the truck computer would still have power.

We did NOT notice the machine was not charged and we removed the battery completely and replace it. The car runs and drives but nothing works. Alarm does not work, windows dont work, unlock button doesnt work, trunk does not close or open basically it just runs and drives. I know you dont need programming for the e53 as I did some research on the site.

How the hell do I get my functions to work? Windows, door locks trunks etc. Very frustrating

im thinking maybe disconnecting the battery completely but this time making sure the battery memory saver machine is powered on when removing and then plugging in the battery again.


PLEASE HELP ASAP THANKS