BMS family
BMS_a159_SW_HVP_ECU_Error
Not Available
What does the BMS_a159_SW_HVP_ECU_Error alert mean?
The High Voltage Processor (HVP) error pin is asserted on Battery Management System (BMS) input.
What you'll see in your Tesla
- Not Available
What triggers it
Analog input pin from the HVP is raised pointing to the HVP Error line being asserted.
When it clears
Analog input pin from the HVP has dropped.
Potential impact
There is a temporary loss of High Voltage (HV) functions.
Affected models
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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