CP family
CP_w004_proximityRationality
Not Available
What does the CP_w004_proximityRationality alert mean?
The charge port (CP) electronic control unit (ECU) detects proximity voltage in an unexpected range.
What you'll see in your Tesla
- Not Available
What triggers it
The CP ECU detects that proximity voltage is outside of the expected range.
When it clears
The CP ECU detects that proximity voltage enters the expected range.
Potential impact
If the issue is with the vehicle, it will not be able to charge.
Affected models
Model S 2012-2020
Model X 2015-2020
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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.