Tesla Model S 2013 MCU2 PROBLEM

[Droschke]

I definitely notice mcu2 has more problems with older models. Drains battery faster and all

Ah, OK. If you mean it increases your vampire drain I agree since I've been experiencing it too. But it does not "mess up" the battery itself as you previously hypothesized.

 

[BrownOuttaSpec]

With MCU1 -> MCU2 upgrade our cars don't "sleep" anymore. There are some threads on here about it. I can't find the specific details but there are threads around like this: Model S 2017 75D wont sleep properly 1hr sleep, 15min awake repeat...

With all those codes I would guess there has gotta be 1 root cause for all of them such as a rodent eating some wires, disconnected wire bundle, bad controller board, or a bad ground somewhere. Did you see this thread: Traction control disabled and other several message... ?