DPB family
DPB_a078_tempSens1ShortToGround
Power braking assist reduced
What does the DPB_a078_tempSens1ShortToGround alert mean?
The Brushless Motor (BLM) is shorted to ground.
What you'll see in your Tesla
- Power braking assist reduced
- Braking may require increased effort
What triggers it
The Decoupled Power Brake (DPB) BLM temperature sensor 1 is shorted to ground.
When it clears
Monitoring runs continuously and is curable within operation cycle
Potential impact
System will be running with internal degraded pedal map. Braking may require increased effort.
Affected models
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.