Skip to content
Model Y

EPASTP_a185 — Sbcscp QA Watchdog Reset

Full alert identifier: EPASTP_a185_sbcscpQAWatchdogReset

Alert description

This alert is reported by the SBCStartupCauseProvider_A8140x (SBCSCP) component if external question-answer watchdog (Q&A) fails. MCU SM requires it, against systematic SW faults, and random HW faults of the time base.

Potential impact

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

Set condition

if external question-answer watchdog (Q&A) fails (status_0.WD_Fn_S is cleared).

Clear condition

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

Signals to check

These diagnostic fields are associated with EPASTP_a185. Check the alert's Payload in Service Mode Plus for available values.

Signal Unit
Debug Info EPASTP_a185_debugInfo —

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of EPASTP_a185.

Browse all EPASTP alert codes