UMC family
UMC_a024_gndResistanceHigh
Not Available
What does the UMC_a024_gndResistanceHigh alert mean?
Universal Mobile Connector (UMC) AC input side ground impedance exceeded threshold
What you'll see in your Tesla
- Not Available
What triggers it
UMC AC input side ground impedance is above 1 Mohm
When it clears
UMC AC input side ground impedance has fallen below 1 Mohm for several seconds
Potential impact
UMC logs that high ground impedance is detected, charging is still allowed.
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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