EPASTP family
EPASTP_a058_amIntVgsUndervtgErr
Not Available
What does the EPASTP_a058_amIntVgsUndervtgErr alert mean?
This alert is reported by the ActuatorManager_R12 (AM) component when there is a GDU failure. GDU monitors gate-to-source voltage, sets a flag and the software checks it.
What you'll see in your Tesla
- Not Available
What triggers it
EPAS ECU GDU device monitor detected failure (gate-to-source voltage).
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+
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