MyTeslaMate
EPASTP family

EPASTP_a120_mcusscFlashEccLatentErr

Not Available

What does the EPASTP_a120_mcusscFlashEccLatentErr alert mean?

This alert is reported by MCUSafetyStartupChecks_TC3x (MCUSSC) component when the flashed SW is incorrect or flash memory failure.

What you'll see in your Tesla

  • Not Available

What triggers it

EPAS has detected flashed SW data integrity failure (ECC) but the number of faults didn't reached the tolerated limits.

When it clears

Perform EPAS Software update.

Potential impact

EPAS reset. If reset more than 6 then EPAS fallback to bootloader.

Affected models

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.