EPASTS family
EPASTS_a259_scoCanBusOff
Not Available
What does the EPASTS_a259_scoCanBusOff alert mean?
This alert is reported by the SystemConditionObserver_T222 (SCO) component when the a bus-off state is detected
What you'll see in your Tesla
- Not Available
What triggers it
EPAS has detected bus failure (Bus-off).
When it clears
EPAS recover from bus-off 100ms after the bus-off state and try again for Rx/Tx.
Potential impact
EPAS does not receive/transmit CAN messages.
Affected models
Model Y
Model Y 2025+
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Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.