CP family
CP_a099_cableStateUnknown
Not Available
What does the CP_a099_cableStateUnknown alert mean?
The charge port (CP) electronic control unit (ECU) is unable to confirm the state of the charging cable.
What you'll see in your Tesla
- Not Available
What triggers it
The CP ECU is unable to determine the state of the charge cable based on proximity and pilot circuits.
When it clears
The CP ECU confirms the state of the charge cable for at least 1 second.
Potential impact
Charging may not start or may be interrupted. Before entering drive, confirm the charge cable is not connected to the vehicle.
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
Semitruck
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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.