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 function stores the state of the non-initialized data integrity (corrupted or not) in the SRH_D8037_Status variable and this is evaluated after RTE has been started.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

None displayed

Impact

EPAS full loss of assist.

Description

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 function stores the state of the non-initialized data integrity (corrupted or not) in the SRH_D8037_Status variable and this is evaluated after RTE has been started.

Cause

EPAS uC internal memory (safety relay management storage) failure (CRC) at startup.

Clear condition

Perform EPAS Software update.

Models

Model Y, Model Y 2025+

Visibility

service-fix

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