MyTeslaMate
CP family

CP_a189_resistivePresenceRationality

Not Available

What does the CP_a189_resistivePresenceRationality alert mean?

The Charge Port (CP) Electronic Control Unit (ECU) is reading irrational values from resistive divider located in the CP door, which may prevent the CP door from opening when pressed.

What you'll see in your Tesla

  • Not Available

What triggers it

The values from the resistive divider in the CP door are outside of the expected range.

When it clears

The values from the resistive divider in the CP door are within the expected range.

Potential impact

The CP may not be able to determine the state of the manual door.

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.