UMC family
UMC_a016_pcbaOTFoldback
Mobile Connector control box temperature high
What does the UMC_a016_pcbaOTFoldback alert mean?
UMC PCBA temperature is causing output current reduction
What you'll see in your Tesla
- Mobile Connector control box temperature high
- Maximum charge rate reduced
What triggers it
UMC PCBA temperature has risen above 90 C
When it clears
UMC PCBA temperature has fallen below 88 C
Potential impact
UMC will reduce reported current capability by half until the PCBA cools sufficiently
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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