ESP_a086_BrakeSwitchImplausible1

Brake Pedal Switch Plausibility monitor against master cylinder pressure sensor failed.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

None displayed

Impact

Degrades automatic braking functionality

Description

Brake Pedal Switch Plausibility monitor against master cylinder pressure sensor failed.

Cause

Master cylinder pressure rise is not correlated with switch state

Clear condition

Check BLS mounting, reporting status, and harness integrity. Run Toolbox Brake Line Switch test, replace BLS if necessary.

Models

Cybertruck, Model 3 2017-2023, Model 3 2024+, Model S 2021+, Model X 2021+, Model Y, Model Y 2025+

Visibility

service-fix

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