FC_a144_CA_flybackUnstable

The Fast Charge (FC) Electronic Control Unit (ECU) has detected a critical flyback converter unstable fault. The emergency shutdown will be performed for the charging session.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

Charging adapter fault
Unplug and retry

Impact

Charging session may not start or may become interrupted.

Description

The Fast Charge (FC) Electronic Control Unit (ECU) has detected a critical flyback converter unstable fault. The emergency shutdown will be performed for the charging session.

Cause

FC ECU detects the flyback voltage slews by more than 10kV over a single 10mS period while the flyback is in the drive state.

Clear condition

FC ECU set the flyback target mode to OFF.

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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