EPASTP_a034_sbchReadbackRegFail

This alert is reported by the SystemBasisChipHAL_A8140x (SBCH) component in case it detects the internal failure of the SBC.

 Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

None displayed

Impact

EPAS full loss of assist.

Description

This alert is reported by the SystemBasisChipHAL_A8140x (SBCH) component in case it detects the internal failure of the SBC.

Cause

EPAS ECU SBC device monitor reports failure (readback not plausible) at runtime.

Clear condition

EPAS HW failure. EPAS power cycle N times and if persists, the gear needs to be changed.

Models

Model Y, Model Y 2025+

Visibility

service-fix

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