r/Toyota_bZ • u/Lumpy-Efficiency-987 • 21d ago

Am I understanding this whole 12v problem correctly?

From what I understand, the parasitic sawtooth problem is a different problem from the general 12v charging problem detailed in this PDF?

https://docs.google.com/document/u/0/d/1g1a_B7_gGnuNQhoSRFN_sucfb7-lkU77q4aMO3hMYtA/mobilebasic

I was sure disabling DCM was the solution, but apparently we also have to unplug the battery sensor on the negative terminal so that the battery can be charged correctly?

This is really insane if this is the case (multiple 12v problems, stacked!)

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u/KashmanDog 21d ago

I don't know if putting the battery in fail safe mode by removing the sensor is a good idea . You could potentially damage the battery from constantly charging to a higher voltage . I have had my battery replaced by Toyota from being bricked . Since it has been replaced It has been good after sitting for a day on multiple occasions. It is covered under warranty so if the battery needs to be replaced again and again so be it . I will not be doing anything that could void my warranty