HVP family
HVP_w031_packNegCtrArcFault
Not Available
What does the HVP_w031_packNegCtrArcFault alert mean?
The High Voltage Processor (HVP) detects a series arc at the negative pack contactor.
What you'll see in your Tesla
- Not Available
What triggers it
The HVP detects a series arc at the negative pack contactor.
When it clears
An arc condition is no longer detected at the negative pack contactor.
Potential impact
The pyro fuse may blow. The vehicle may be unable to drive or charge.
Affected models
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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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.