EPASTS family
EPASTS_a161_tdaRelayfetjunctionTempChecker
Not Available
What does the EPASTS_a161_tdaRelayfetjunctionTempChecker alert mean?
This alert is reported by the TemperatureDiagnostics_Actuator_R12 (TDA) component when there is a phase relay overtemperature. Degradation parameters/estimator shall be checked, if those are correct, HW failure.
What you'll see in your Tesla
- Not Available
What triggers it
EPAS application actuator temperature diagnostics detected overtemperature (phase relay FET).
When it clears
If the temperature is below the overtemp threshold, and its qualifier is RELIABLE for long enough.
Potential impact
EPAS full loss of assist.
Affected models
Model Y
Model Y 2025+
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