EPASTP family
EPASTP_a063_amIntRegulatorErr
Not Available
What does the EPASTP_a063_amIntRegulatorErr alert mean?
This alert is reported by the ActuatorManager_R12 (AM) component when there is a GDU failure. GDU internal rail overvoltage check. The GDU contains a set of internal voltage rails and their voltage monitors. The GDU reacts, software just logs it.
What you'll see in your Tesla
- Not Available
What triggers it
EPAS ECU GDU device monitor detected failure (internal voltage voltages).
When it clears
EPAS HW failure. EPAS power cycle N times and if persists, the gear needs to be changed.
Potential impact
EPAS full loss of assist.
Affected models
Model Y
Model Y 2025+
Track your Tesla's alerts automatically
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.