EPASTP family
EPASTP_a256_dcvmOverVolt
Not Available
What does the EPASTP_a256_dcvmOverVolt alert mean?
This alert is reported by the DCVoltageMonitor_T222 (DCVM) component when overVoltage is detected.
What you'll see in your Tesla
- Not Available
What triggers it
EPAS has detected supply overvoltage (higher than 18v [calibratable]).
When it clears
Perform EPAS ECU power cycle
Potential impact
Assist is disabled.
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.