IBST_a187_brakeBusOff

The CAN Bus status is monitored cyclically, whenever there is a short circuit between CAN-H and CAN-L or a heavy bus disturbance which leads to BusOff, the fault is registered.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

None displayed

Impact

Vehicle hold and AutoPilot disabled

Description

The CAN Bus status is monitored cyclically, whenever there is a short circuit between CAN-H and CAN-L or a heavy bus disturbance which leads to BusOff, the fault is registered.

Cause

ESP is not receiving any message traffic on BRAKE bus

Clear condition

Check BRAKE bus for continuity and traffic on bus. Confirm BRAKE bus issues with MIA alerts on other devices. Power cycle.

Models

Cybertruck, Model 3 2017-2023, Model 3 2024+, Model Y, Model Y 2025+

Visibility

service-fix

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