MyTeslaMate
EPASTP family

EPASTP_a152_exchFlashEccException

Not Available

What does the EPASTP_a152_exchFlashEccException alert mean?

This alert is reported by the ExceptionHandler_TC3x (EXCH) component when there is a single-bit or multi-bit (all 1 and all 0) error in the pflash. This diagnostic is the handling of the exception thrown by the PFlash ECC when it encountered a multi-bit Flash fault.

What you'll see in your Tesla

  • Not Available

What triggers it

When PFlash ECC encountered a multi-bit Flash fault. EPAS application component ExceptionHandler detected unrecoverable memory failure (PFlash ECC fault).

When it clears

Perform EPAS Software update. Replace HW if the alert persists.

Potential impact

EPAS reset.

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.