MyTeslaMate
EPAS3S family

EPAS3S_a143_vcsecCsError

Not Available

What does the EPAS3S_a143_vcsecCsError alert mean?

Controller Area Network (CAN) messages received from the vehicle security controller (VCSEC) electronic control unit (ECU) has an invalid checksum value, indicating an error in data integrity has been detected.

What you'll see in your Tesla

  • Not Available

What triggers it

CAN message received from the VCSEC ECU has an invalid checksum value.

When it clears

CAN message received from the VCSEC ECU have valid checksum values.

Potential impact

The VCSEC to Electronic Power-Assisted Steering (EPAS) interface is interrupted. Tire-based steering tuning may be affected.

Affected models

Model S 2021+ Model X 2021+

Track your Tesla's alerts automatically

Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.