Model Y

EPASTP_a186 — Wdh Comm Buffer Overflow

Full alert identifier: EPASTP_a186_wdhCommBufferOverflow

Alert description

This alert is reported by the WatchdogHandler_A8140x (WDH) component in case SBC Communication buffer overflow checker. Against systematic SW failures on WatchdogHandler component.

Potential impact

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

Set condition

SBC Communication buffer is overflow (RTE buffer (message queue) overflow in the WatchdogHandler_A8140x component).

Clear condition

EPAS will perform a power cycle. If persist then perform EPAS Software update.

Signals to check

These diagnostic fields are associated with EPASTP_a186. Check the alert's Payload in Service Mode Plus for available values.

Signal	Unit
Debug Info `EPASTP_a186_debugInfo`	—

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of EPASTP_a186.

EPASTP_a190 — Sbch Comm Buffer Overflow EPASTP_a190_sbchCommBufferOverflow This alert is reported in case SBC Communication buffer overflow checker. Against systematic SW failures on SystemBasisChipHAL component.
EPASTP_a188 — Epm Comm Buffer Overflow EPASTP_a188_epmCommBufferOverflow This alert is reported by the ExternalPowerManager_A8140x (EPM) component in case SBC Communication buffer overflow checker. Against systematic SW failures on ExternalPowerManager component.
EPASTP_a184 — Sbcm Comm Buffer Overflow EPASTP_a184_sbcmCommBufferOverflow This alert is reported in case SBC Communication buffer overflow checker. Against systematic SW failures on SystemBasisChipManager component.
EPASTP_a200 — Amm Input Buffer Overflow EPASTP_a200_ammInputBufferOverflow This alert is reported by the ApplicationManagerProxy_Generic (AMM) component if between two executions the applications send more than 10 application management messages to port LocalManagementMessages. The alert will not be cleared.
EPASTP_a201 — Amm Output Buffer Overflow EPASTP_a201_ammOutputBufferOverflow This alert is reported by the ApplicationManagerProxy_Generic (AMM) component if it receives too many application management messages at port LocalManagementMessages for the remote MCU in a short time

Browse all EPASTP alert codes