Model Y

EPASTP_a015 — Mcussc Cs Error Check Fail

Full alert identifier: EPASTP_a015_mcusscCsErrorCheckFail

Alert description

This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when CRC check failed, consistency of non-inited memory sections did not keep during the restart.

Potential impact

EPAS full loss of assist.

Set condition

EPAS microcontroller non-initialized data is corrupted after a reset.

Clear condition

Perform EPAS Software update.

Signals to check

These diagnostic fields are associated with EPASTP_a015. Check the alert's Payload in Service Mode Plus for available values.

Signal	Unit
Debug Info `EPASTP_a015_debugInfo`	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of EPASTP_a015.

EPASTP_a016 — Mcufc Cs Error Check Fail EPASTP_a016_mcufcCsErrorCheckFail This alert is reported by the MCUFlashChecks_TC3x (MCUFC) component when CRC check failed, consistency of non-inited memory sections did not keep during the restart.
EPASTP_a026 — Mrcc Cs Error Check Fail EPASTP_a026_mrccCsErrorCheckFail This alert is reported when CRC check failed, consistency of non-inited memory sections did not keep during the restart.
EPASTP_a024 — Srh Cs Error Check Fail EPASTP_a024_srhCsErrorCheckFail This alert is reported by the SafetyRelayHAL_R12 (SRH) component if the CRC calculation of the SEC_VAR_SRH_BIST_STATUS memory section is failed or the CRC validity pattern is invalid. During the startup SafetyRelayHAL_R12_RestoreRelays fun…
EPASTP_a021 — Oseh Cs Error Check EPASTP_a021_osehCsErrorCheck This alert is reported by OsErrorHandler_R12 (OSEH) component when the ResetReason_OsError structure CRC check is failed.
EPASTP_a018 — Exch Cs Error Check EPASTP_a018_exchCsErrorCheck This alert is reported by the ExceptionHandler_TC3x (EXCH) component when the CRC mismatch is detected in the non-initialized data

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