Skip to content
Model Y

EPASTS_a021 — Oseh Cs Error Check

Full alert identifier: EPASTS_a021_osehCsErrorCheck

Alert description

This alert is reported by OsErrorHandler_R12 (OSEH) component when the ResetReason_OsError structure CRC check is failed.

Potential impact

EPAS full loss of assist.

Set condition

EPAS uC internal memory (OS reset management storage) failure (CRC) at startup.

Clear condition

Perform EPAS Software update.

Signals to check

These diagnostic fields are associated with EPASTS_a021. Check the alert's Payload in Service Mode Plus for available values.

Signal Unit
Debug Info EPASTS_a021_debugInfo —

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of EPASTS_a021.

Browse all EPASTS alert codes