Alert Details

EPASTP_a183_sbchCommErrSbcToMcu

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Description

This alert is reported by the SystemBasisChipHAL_A8140x (SBCH) component SBC if the communication check (SBC -> MCU) fails. Against random HW failures of the MCU and communication line including EMC.

Condition

EPAS SBC diagnostics detected SPI failures. Communication check (SBC -> MCU) fails (Wrong ID or CRC failure).

Clear Condition

EPAS will perform a power cycle. If persist then perform EPAS Software update. Replace HW if the alert persist.

Potential Impact

EPAS reset. If reset more than 5 times then EPAS full loss of assist.

Customer Facing Message 1

Not Available

Customer Facing Message 2

Not Available

Audiences

service-fix

Models

Model Y;Model Y 2025+