DPB_a031_HWParamReadFailed

The Decoupled Power Brake (DPB) parameters in Non-Volatile Memory (NVM) cannot be read.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

Power braking assist reduced
Braking may require increased effort

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.

Description

The Decoupled Power Brake (DPB) parameters in Non-Volatile Memory (NVM) cannot be read.

Cause

NVM parameter item is empty or invalid when NVM values are read and evalulated at start up.

Clear condition

No issue is detected in current operation cycle.

Models

Model Y 2025+

Visibility

customer, service-fix

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