EPAS3P family
EPAS3P_a039_motPos1MagnetMia
Not Available
What does the EPAS3P_a039_motPos1MagnetMia alert mean?
Motor position sensor 1 magnetic field not detected
What you'll see in your Tesla
- Not Available
What triggers it
Motor position sensor 1 magnetic field not detected
When it clears
Clear fault and power cycle
Potential impact
Reduced steering assist
Affected models
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
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.