Akash Pamnani

Hello!

Do u know what can I do to repair charging in my A7 4K?

After collision it is 0.0V even with engine running. I know that 48V battery can be dead but how to revive it?

Thanks for any info!

fkaufman

Your description is not clear enough to diagnose the issue.

Are you measuring 0.0V on the battery terminals while the engine is running?

Akash Pamnani

Sorry. I mean when i start engine OBD11 shows 0.0V charging from alternator. I have electric system fault with codes: C11CB01 (12V system fault), P1B0100 (alternator fault), C124EF0 (collision lock active).

car was crashed like on photo

Rsniper4

Have you checked the pyro fuse? It's designed to blow and kill power in a collision.

Akash Pamnani

Already changed but New clue is 12V/48V Converter module, part number 4K0959663

Akash Pamnani

Okay, there is feature which 'locks' charging by alternator after accident. It can be unlocked by OBD11, VCP etc.

mihai.roibu

Can you tell me how you did that because i got same problem with my Audi A8 2018 its starting and cuts out in 5 sec … If you can help me as well please! Thank you!

Akash Pamnani

Hmm, your problem sounds different. Your car is damaged after accident?

Usman

did you manage to sort it out, ive got the same issue with my Audi Q8

Audi 4k

hi mate, I have the same vehicle with the same damage and same electrical fault… alternator not kicking in an battery not charging.
please help