CC family
CC_a014_mcuSelfTestFault
Unable to charge - Wall Connector issue
What does the CC_a014_mcuSelfTestFault alert mean?
Wall connector microcontroller internal self-test fault.
What you'll see in your Tesla
- Unable to charge - Wall Connector issue
- Wall Connector needs service
What triggers it
Wall connector microcontroller failed internal self-test.
When it clears
Wall connector microcontroller passes internal self-test.
Potential impact
Wall connector will not operate until self-test passes.
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.