FC family
FC_a186_CA_fcContOpenTimeout
Not Available
What does the FC_a186_CA_fcContOpenTimeout alert mean?
The Fast Charge (FC) Electronic Control Unit (ECU) has detected timeout during waiting for vehicle Fast Charge contactor opened.
What you'll see in your Tesla
- Not Available
What triggers it
FC ECU detects timeout during waiting for vehicle Fast Charge contactor opened.
When it clears
Unplug the adapter.
Potential impact
Charging session may not normally shutdown.
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.