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Model Y

EPASTP_a221 — Aps Cnt Error

Full alert identifier: EPASTP_a221_apsCntError

Alert description

Invalid APS_eacMonitorCounter value received

Potential impact

External Angle Controller inhibited

Set condition

APS_eacMonitorCounter not incrementing correctly

Clear condition

Electronic Power Assist Steering (EPAS) observes APS_eacMonitorCounter incrementing correctly

Signals to check

These diagnostic fields are associated with EPASTP_a221. Check the alert's Payload in Service Mode Plus for available values.

Signal Unit
Debug Info EPASTP_a221_debugInfo —

Check other alerts

With Service Mode Plus enabled, open Service Alerts → All. Review the other alerts for clues to the cause of EPASTP_a221.

Browse all EPASTP alert codes