FC_w134_CA_vehTxBufOvf
Not Available
What does the FC_w134_CA_vehTxBufOvf alert mean?
The Fast Charge (FC) Electronic Control Unit (ECU) has detected a bus heavy condition. Messages sent to the vehicle stay in queue or overflow, interrupting communication with the charging session.
What you'll see in your Tesla
- Not Available
What triggers it
FC ECU detects the queue responsible for sending messages to the vehicle is full or overflowing.
When it clears
FC ECU no longer detects a full or overflowing queue when sending messages. Enough space is allocated to send messages.
Potential impact
Charging session may not start or may become interrupted.
Affected models
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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.