DIF family
DIF_a063_bbMIA
Not Available
What does the DIF_a063_bbMIA alert mean?
One or more of the messages the Drive Inverter Front (DIF) Electronic Control Unit (ECU) receives periodically from the Decoupled Brake Booster (BB) ECU is not received, indicating the BB ECU may be unavailable (MIA).
What you'll see in your Tesla
- Not Available
What triggers it
One or more of the expected messages from the BB ECU is not received.
When it clears
The DIF ECU starts receiving the expected messages from the BB ECU during the next drive cycle.
Potential impact
Drive system may not function as expected.
Affected models
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.