DPB_a226_U5VTestFault

U5V voltage comparator test failed.

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

U5V voltage comparator test failed.

Cause

Defect of ASIC, Test starts and evalutes the ASIC internal test of the U5V voltage regulator.

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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