FC family
FC_a295_GB_pilotRationality
Not Available
What does the FC_a295_GB_pilotRationality alert mean?
The Fast Charge (FC) Electronic Control Unit (ECU) has received a message from the GuoBiao (GB) adapter detecting irrational status between adapter and vehicle charge port via pilot signal.
What you'll see in your Tesla
- Not Available
What triggers it
The wave form of the pilot signal is out of rational range.
When it clears
Detected wave form of pilot signal is within rational range.
Potential impact
Charging session may not start or may become interrupted.
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.