EPASTP_a183_sbchCommErrSbcToMcu
Not Available
What does the EPASTP_a183_sbchCommErrSbcToMcu alert mean?
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.
What you'll see in your Tesla
- Not Available
What triggers it
EPAS SBC diagnostics detected SPI failures. Communication check (SBC -> MCU) fails (Wrong ID or CRC failure).
When it clears
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.
Affected models
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