EPASTS_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.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

None displayed

Impact

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

Description

This alert is reported by the ExternalPowerManager_A8140x (EPM) component in case SBC Communication buffer overflow checker. Against systematic SW failures on ExternalPowerManager component.

Cause

SBC Communication buffer overflows (RTE buffer (message queue) overflow in the ExternalPowerManager_A8140x component).

Clear condition

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

Models

Model Y, Model Y 2025+

Visibility

service-fix

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