MyTeslaMate
HVLINK family

HVLINK_a039_PyroDeviceSelfTest

Not Available

What does the HVLINK_a039_PyroDeviceSelfTest alert mean?

The High Voltage DC Link Controller (HVLINK) has detected a fault condition impacting the pyro subsystem.

What you'll see in your Tesla

  • Not Available

What triggers it

A fault condition is detected by the pyro subsystem.

When it clears

The pyro subsystem no longer detects a fault condition. The Printed Circuit Board Assembly (PCBA) is replaced.

Potential impact

Pyro cannot be deployed.

Affected models

Semitruck

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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.