EPASTP_a189_sbchCommErrMcuToSbc
EPASTP_a189_sbchCommErrMcuToSbc
Alert Information
Category
Other
Severity
critical
Live Incidence Rate
<0.01%
Models
Model Y
Description
This alert is reported by the SystemBasisChipHAL_A8140x (SBCH) component in case SBC communication check (MCU -> SBC) fails. Against random HW failures of the MCU and communication line including EMC.
Potential Impact
EPAS reset. If reset more than 5 times then EPAS full loss of assist.
Set Condition
SBC communication check (MCU -> SBC) fails (SE flag is set in WD feeding answer messages).
Clear Condition
If the number of stored errors in non-initialized RAM variable representing MCU to SBC errors is less than the limit.