HVBATT family
HVBATT_a236_CpAssertedFaultLine
Unable to charge
What does the HVBATT_a236_CpAssertedFaultLine alert mean?
The battery management system (BMS) has detected that the Charge Port (CP) fault line is set.
What you'll see in your Tesla
- Unable to charge
- Disconnect and retry
What triggers it
The hardline from the CP to the BMS is active.
When it clears
The hardline from the CP to the BMS is not active.
Potential impact
Vehicle charging is unavailable.
Affected models
Cybertruck
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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.