DPB_a051_PSCVoltageImplausible
Power braking assist reduced
What does the DPB_a051_PSCVoltageImplausible alert mean?
Based on the motor current vector and speed the voltage vector is not plausible.
What you'll see in your Tesla
- Power braking assist reduced
- Braking may require increased effort
What triggers it
Based on the differential motor model equations the expected voltage vector is calculated from measured motor phase currents and motor speed. This is compared to the output of the field-oriented current controller. In case of large deviations the alert is triggered.
When it clears
Ignition off; wait 5 seconds; Ignition on
Potential impact
System will be running in fully degraded state. Braking may require increased effort. Hydraulic Boost Compensation will be triggered when driver pressed brake pedal.
Affected models
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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.