Dead battery now errors

[Thewrench86]

Hi guys battery went so had it replaced with a bosch like for like spec and it was coded but I'm having an issue with some errors that when I look them up are giving the exact symptoms I'm having. Random lights wont work such as ambiant interior and rear left indicator front right indicator left fog light right low beam. Ive tried clearing codes but just no luck.
I'm not sure if its just a fuse or a module has died.
Codes are 800e8c terminal 30b error and 800fc9 which is the right tms module error . Ive been advised it could be the tms module that is tripping everything else? Any advice appreciated.

[Qsilver7]

I know it seems like something simple...but many conflate/confuse coding & registering.

Just to clarify what you did...did you REGISTER the new battery...or just had it coded? Registering a new battery is mandatory ANY time a new battery is installed. It sets new parameters for the car’s charging system. This allows the IBS (intelligent battery sensor) to communicate with the DME and other modules on the car’s LIN BUS (or BSD) that a new battery is installed so a new base line for charging is implemented (see info below especially the very last paragraph on battery registration).

{battery registration screen in Bimmerlink app}

Coding a battery is done if you change the type and/or the amp hour of the battery. For example, if you had a 95 AH battery regular “flooded” battery installed and replaced it with a new 105 AH AGM battery, then you would need to “code” the system to reflect the change in the type and AH rating of the battery...then you would “register” the new battery as described in the paragraph above.

{battery coding screen in Bimmercode app}

[Thewrench86]

Thank you for your response ok so basically the new battery was registered as it was the same spec.
The attached picture is the error description and how to resolve but I dont know where the fuse would be for twrminal 30b.

[Thewrench86]

[Thewrench86]

Ok just to update this, it turned out to be the rear fuse box. The whole unit was replaced for a new one. The old unit had melted in some parts not sure how but there u go.

[Walt White Coupe]

Originally Posted by Thewrench86

Thank you for your response ok so basically the new battery was registered as it was the same spec.
The attached picture is the error description and how to resolve but I dont know where the fuse would be for twrminal 30b.

Wrong. "Registering" is still needed even if the new battery is exactly the same as the old battery. Registering the battery tells the charging system that the battery is "new" as opposed to "old" and sets up the charging system to use the "new" battery charging protocol.

[Thewrench86]

Originally Posted by Walt White Coupe

Wrong. "Registering" is still needed even if the new battery is exactly the same as the old battery. Registering the battery tells the charging system that the battery is "new" as opposed to "old" and sets up the charging system to use the "new" battery charging protocol.

Not sure if you understood me correctly so ill explain, I was simply confirming after SilverQ helpfully made the suggestion to ensure the battery was registered, that I had registered the battery change and also that it was the same spec as my old battery. Right or Wrong not sure about where that came from .

[Walt White Coupe]

Sorry, your post sounded like you were saying that since the battery was the same as the old one that is was therefore registered. My mistake.