MyTeslaMate
SCM family

SCM_a074_isoVDiffHi

Not Available

What does the SCM_a074_isoVDiffHi alert mean?

A Lower limit breach was identified in Supercharger isolation voltage input status.

What you'll see in your Tesla

  • Not Available

What triggers it

Supercharger detected under threshold voltage values meant for exterior circuit isolation checks.

When it clears

Measured readings restored at optimal levels sufficient enough to meet external isolation requirements.

Potential impact

Supercharger hardware may be exposed to reduced efficiency and increased susceptibility to electromagnetic interference.

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.