VCFRONT_a257_portExpanderVOR

The front vehicle controller (VCFRONT) has detected a condition affecting a group of eFuses, making an eFuse system reset necessary.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

None displayed

Impact

Vehicle may be unable to drive.

Description

The front vehicle controller (VCFRONT) has detected a condition affecting a group of eFuses, making an eFuse system reset necessary.

Cause

VCFRONT detects a group of eFuses with a common power source have all tripped (circuit opened).

Clear condition

The integrated circuit (I2C) port expander connecting the microcontroller and eFuse enable pins is reset after a retry or sleep cycle.

Models

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

Visibility

service

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