DPB family
DPB_a003_AswEEPROMReadFailure
Power braking assist reduced
What does the DPB_a003_AswEEPROMReadFailure alert mean?
Braking hardware parameter(s) can not be read from Decoupled Power Brake (DPB) ECU EEPROM.
What you'll see in your Tesla
- Power braking assist reduced
- Braking may require increased effort
What triggers it
DPB ECU EEPROM could not be read successfully. It may be empty or corrupted.
When it clears
Good Check is performed, if the data can be read out and mapped successfully
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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