EPASTS family
EPASTS_a102_amPhasecurrentQosErr
Not Available
What does the EPASTS_a102_amPhasecurrentQosErr alert mean?
This alert is reported by the ActuatorManager_R12 (AM) component when there is a current measurement failure.
What you'll see in your Tesla
- Not Available
What triggers it
Current measurement failure. Phase current QoS is not set to at least QOS_CS_REDUCED_PRECISON in NoPhaseCurrentQoSDebounce time during StandbyToOn state. EPAS application diagnostics of phase current measurement detected failure.
When it clears
EPAS HW failure. EPAS power cycle N times and if persists, the gear needs to be changed.
Potential impact
EPAS full loss of assist.
Affected models
Model Y
Model Y 2025+
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