What I was saying but didnt get out well is that if you send a weak signal out to all the sensors, and then you get a weak sensor back, the computer only registers you get weak signals back. So it alerts you that "hey theres an issue with this sensor" as bad components generally send back weak signals. Its called a closed circuit to send and recieve the signal. In this case its just the battery being too weak to send good signal out, so it gets bad in return and trips warnings.
