FC family
FC_a152_CA_vehToPcbDeltaHi
Charging adapter fault
What does the FC_a152_CA_vehToPcbDeltaHi alert mean?
The vehicle is unable to begin CHAdeMO DC fast charging because the temperature difference (delta) between the vehicle charge port and the printed circuit board (PCB) is higher than expected.
What you'll see in your Tesla
- Charging adapter fault
- Unplug and retry
What triggers it
The FC ECU detects that the temperature delta between the vehicle and the PCB is above the alert threshold.
When it clears
The temperature delta between the PCB and the vehicle is within normal bounds.
Potential impact
DC fast charging is unavailable.
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.