DPB_a222_excessiveEcuResetsDetected

An excessive number of ECU resets has occurred in a row during actuator initialization (before IPC completion).

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

An excessive number of ECU resets has occurred in a row during actuator initialization (before IPC completion).

Cause

High electric resistance in the IPB power supply. Either due to a weak battery or due to corrosion of the supply cable. The alert is set if several ECU resets in a row have occurred before the initial actuator tests could finish.

Clear condition

No issue is detected in current operation cycle.

Models

Model Y 2025+

Visibility

customer, service-fix

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