EPASTS family
EPASTS_a182_mcdInputMia
Not Available
What does the EPASTS_a182_mcdInputMia alert mean?
This alert is reported by the MotorControlDiagnostics_R12 (MCD) component if MTCControlSignal age reached the diagnostic limit.
What you'll see in your Tesla
- Not Available
What triggers it
EPAS motor control diagnostics detected requested motor torque timeout (signal age reached the diagnostic limit).
When it clears
EPAS will perform a power cycle.
Potential impact
EPAS reset. If reset more than 5 times then EPAS full loss of assist.
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.