Alert Details

EPASTS_a009_mcusscLbistPermanentFail

Description

This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when there is a MCU failure. Logic built-in self-test failed.

Condition

EPAS Microcontroller built-in self tests (BIST) that the SW runs after reset failed for 3 consecutive times.

Clear Condition

Perform EPAS ECU power cycle.

Potential Impact

EPAS full loss of assist.

Customer Facing Message 1

Not Available

Customer Facing Message 2

Not Available

Audiences

service-fix

Models

Model Y;Model Y 2025+