DIF family
DIF_a244_mechSafeStateApplied
Not Available
What does the DIF_a244_mechSafeStateApplied alert mean?
Alert for software trigger of mechanical safe state two-phase disconnect device.
What you'll see in your Tesla
- Not Available
What triggers it
Software detects a shorted semiconductor switch. The alert log signals provide detailed trigger algorithm info.
When it clears
Clears when low voltage (LV) power is removed from drive unit or a non-drive/drive cycle occurs
Potential impact
The motor is permanently disabled.
Affected models
Cybertruck
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.