BMW fault code 0012

Electronic battery isolator switch

internal error: clock generator

Module version: Electronic battery isolator switch (ETS)

In: 7 Series (E38) 1998–2001

Reading and clearing it

Fault code 0012 is a BMW code, stored in the car's electronic battery isolator switch, not a generic OBD2 code (P0xxx): a generic OBD2 reader only reaches the engine's emissions faults, so it won't show it. AutoLingo for BMW reads it with BMW's own diagnostic protocols, in plain English, with the details the module stored about it, and clears it after a repair. If a fault comes right back after it's cleared, the problem is still there.

The electronic battery isolator switch is on: 8 Series (E31), 7 Series (E38)

Coming soon

Enter your email address to hear when AutoLingo for BMW is ready.

Leave this empty

Email address

We'll email you when it's ready, and now and then with news. Every email has an unsubscribe link.

Sign up

← 0011 All electronic battery isolator switch fault codes 0013 →