EPASTP family
EPASTP_a115_mcusscLbistSingleFail
Not Available
What does the EPASTP_a115_mcusscLbistSingleFail alert mean?
This alert is reported by MCUSafetyStartupChecks_TC3x (MCUSSC) component when there is a MCU failure. Logic built-in self-test failed.
What you'll see in your Tesla
- Not Available
What triggers it
EPAS logic built-in self-test failed.
When it clears
EPAS HW failure. EPAS power cycle N times and if persists, the gear needs to be changed.
Potential impact
EPAS reset. If reset more than 3 then EPAS full loss of assist.
Affected models
Model Y
Model Y 2025+
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