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EPASTP_a121 — Mcussc Mbist Ecc Err

Full alert identifier: EPASTP_a121_mcusscMbistEccErr

Alert description

This alert is reported by MCUSafetyStartupChecks_TC3x (MCUSSC) component when the memory Built-In-SelfTest failed, errors in the critical memory units. MCU failure

Potential impact

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

Set condition

EPAS memory BIST found any errors in critical memory units (CPU0, CPU1, DMA).

Clear condition

EPAS HW failure. EPAS power cycle N times and if persists, the gear needs to be changed.

Signals to check

These diagnostic fields are associated with EPASTP_a121. Check the alert's Payload in Service Mode Plus for available values.

Signal Unit
Debug Info EPASTP_a121_debugInfo —

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of EPASTP_a121.

Browse all EPASTP alert codes