DPB family
DPB_a020_ecuHuMismatch
Power braking assist reduced
What does the DPB_a020_ecuHuMismatch alert mean?
There is a Decoupled Power Brake (DPB) ECU mismatch.
What you'll see in your Tesla
- Power braking assist reduced
- Braking may require increased effort
What triggers it
Wrong ECU Exchange. Mismatch Linear Position Sensor IDs in NvM with Linear Position Sensor IDs from sensor.
When it clears
Lips IDs in NvM matches with Lips IDs from sensor
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
Model Y 2025+
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