DIF family
DIF_a079_adcRefHigh
Not Available
What does the DIF_a079_adcRefHigh alert mean?
The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects an analog-to-digital converter (ADC) channel reference above the upper rational bound.
What you'll see in your Tesla
- Not Available
What triggers it
Any ADC channel reference is above the maximum rational value.
When it clears
Clears when all ADC channel references are below the maximum rational value for 1 second.
Potential impact
The vehicle is blocked from shifting out of Park.
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
Track your Tesla's alerts automatically
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.