PCS_a089_hvBusDischargeIrrational
Not Available
What does the PCS_a089_hvBusDischargeIrrational alert mean?
The Power Conversion System (PCS) electronic control unit (ECU) detects its DCDC converter is unable to regulate the voltage slew rate while the high voltage (HV) bus is discharging, causing the HV bus to discharge outside of the specified slew rate threshold.
What you'll see in your Tesla
- Not Available
What triggers it
The PCS ECU detects the DCDC converter is unable to regulate the voltage slew rate while the HV bus is discharging.
When it clears
The PCS ECU detects the DCDC converter is able to regulate the voltage slew rate while the HV bus is discharging.
Potential impact
Vehicle will be unable to precharge. Guobiao direct current (GB DC) and CHAdeMO DC fast charging (FC) may not start or may be interrupted due to CHAdeMO and GB DC compatibility conditions.
Affected models
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