DPB_a258_valveRelayOffContinuous

VR can not be switched on.

 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

VR can not be switched on.

Cause

(1) UVR voltage does not fit to the target VR state, Comparing UVR and UBVR. (2) VR can not be switched on, Comparing UVR and UBVR.

Clear condition

No internal issue is detected after changing operation cycle. If the condition persists, the DPB module may require replacement.

Models

Model Y 2025+

Visibility

customer, service-fix

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