Check EV System warning message

[Lido]

Any other ideas? Or is just going to require another visit to a Toyota dealer?

If it is working I would just drive it normal for 2 or 3 weeks before I went to the dealer.

If four start-ups don’t clear the message, and disconnecting the 12 volt doesn’t do it, you’ll have to have the dealer reset the error message coming from the Tesla gateway.

Sadly, pretty normal for a dead 12 volt battery.

Obviously, it’s perfectly safe to drive the car until it’s concenient to get the “CHECK EV” message cleared.

Ask the dealer if is a “P312F” DTC / error message.

Tony, is this something any hybrid/ev repair shop can do or only Toyota dealers? I changed my 12v battery and a few weeks after the "Check EV System" warning showed up. Battery disconnect didn't help.

[alflash]

Lido, Any technician who has and knows how to use activated this program can reset the codes and diagnose the Tesla systems of this vehicle


In addition, remote diagnostics are possible. For example, as shown in
https://youtu.be/uesgCYBINgg

[Lido]

Lido, Any technician who has and knows how to use activated this program can reset the codes and diagnose the Tesla systems of this vehicle


In addition, remote diagnostics are possible. For example, as shown in
https://youtu.be/uesgCYBINgg

Thanks! Will put together the cable and get in touch next time that warning comes on.