VCFRONT_a129_pcsEFuseTrip

The front vehicle controller (VCFRONT) has opened the low voltage (LV) power feed circuit (eFuse) to the power conversion system (PCS), interrupting power supply to the PCS..

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

None displayed

Impact

The vehicle low voltage electrical system will no longer be supported by the PCS. Features may be limited or unavailable. The vehicle may use loadshedding (switching off nonessential features) to preserve power for essential functions, with at least one other alert present to indicate this condition.

Description

The front vehicle controller (VCFRONT) has opened the low voltage (LV) power feed circuit (eFuse) to the power conversion system (PCS), interrupting power supply to the PCS..

Cause

VCFRONT detects the eFuse circuit gating low voltage (LV) power feed to the PCS as open (tripped).

Clear condition

VCFRONT no longer detects the eFuse circuit gating low voltage (LV) power feed to the PCS as open (tripped) after a retry or sleep cycle, or the vehicle enters a state where the eFuse is expected to be open (off).

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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