EPASTP family
EPASTP_a117_mrccStartupRegCsErrorTransientErr
Not Available
What does the EPASTP_a117_mrccStartupRegCsErrorTransientErr alert mean?
This alert is reported when there is a transient CRC failure in register CRC check.
What you'll see in your Tesla
- Not Available
What triggers it
EPAS microcontroller's different registers does not contain the right values before starting the safety functions (CRC doesn't match for the first test fail).
When it clears
Perform EPAS Software update. Replace HW if the alert persists.
Potential impact
EPAS reset. If reset more than 6 then EPAS fallback to bootloader.
Affected models
Model Y
Model Y 2025+
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