FC family
FC_a151_CA_vehToEvseDeltaLo
Charging adapter temperature high
What does the FC_a151_CA_vehToEvseDeltaLo alert mean?
The CHAdeMO adapter detects that the temperature difference (delta) between the vehicle charge port connector and the electric vehicle supply equipment (EVSE) is lower than expected.
What you'll see in your Tesla
- Charging adapter temperature high
- Maximum charge rate reduced
What triggers it
The CHAdeMO adapter detects that the temperature difference (delta) between the vehicle charge port connector and the EVSE is lower than the alert threshold.
When it clears
Clears automatically when the CHAdeMO adapter is unplugged from the EVSE.
Potential impact
Charging speed is reduced.
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.