This alert is reported by the ActuatorManager_R12 (AM) component when there is a GDU failure. This diagnostic checks the parity of the messages sent by the GDU.
<0.01% (Extremely rare)
None displayed
EPAS full loss of assist.
This alert is reported by the ActuatorManager_R12 (AM) component when there is a GDU failure. This diagnostic checks the parity of the messages sent by the GDU.
EPAS ECU GDU device monitor detected failure (wrong parity bit on serial communication).
EPAS HW failure. EPAS power cycle N times and if persists, the gear needs to be changed.
Model Y, Model Y 2025+
service-fix
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