Verified EV diagnostic knowledge page

Tesla CC_f023

Unable to charge - Too many Wall Connectors Ensure no more than 3 units paired with primary

Common search variants: CCf023 · CC-f023 · CC f023 · Search ignores case and common separators.

DriveNot yet established by verified evidence.
ChargeNo. The alert states that charging is unavailable until the Wall Connector load-sharing configuration is corrected.
ServiceConsult an electrician for Wall Connector load-sharing configuration. Tesla vehicle service requirements are not yet established by verified evidence.
Confidence95%

Quick answer

CC_f023 means the Wall Connector load-sharing network has more than three Wall Connectors paired with the same primary unit, preventing charging.

This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.

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1. What does CC_f023 mean?

CC_f023 means the Wall Connector load-sharing network has more than three Wall Connectors paired with the same primary unit, preventing charging.

2. Technical explanation

Tesla identifies this as a Wall Connector load-sharing (circuit-breaker-sharing) configuration issue. The verified guidance states that no more than three Wall Connectors may be paired with one primary Wall Connector.

3. What system is affected?

Tesla Wall Connector load-sharing network / charging equipment configuration.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • Charging is unavailable.
  • The vehicle displays CC_f023: “Unable to charge - Too many Wall Connectors Ensure no more than 3 units paired with primary.”

6. Possible causes

  • More than three Wall Connectors are paired with the same primary unit in a load-sharing network.

7. Can I still drive the vehicle?

Not yet established by verified evidence.

8. Can I charge the vehicle?

No. The alert states that charging is unavailable until the Wall Connector load-sharing configuration is corrected.

9. What you can safely do

  • Consult an electrician.
  • Use the Wall Connector installation guide for configuration information.
  • Do not attempt electrical installation or circuit changes yourself.

10. Step-by-step troubleshooting

  1. Have an electrician confirm that no more than three Wall Connectors are paired with the primary unit.
  2. Have an electrician move one or more paired Wall Connectors to a different circuit and configure them as needed, as described in the Wall Connector installation guidance.

11. When to contact service

Consult an electrician for Wall Connector load-sharing configuration. Tesla vehicle service requirements are not yet established by verified evidence.

12. What the service center may check

  • Confirm the number of Wall Connectors paired with the primary unit.
  • Confirm that the load-sharing network does not have more than three paired Wall Connectors per primary unit.
  • Refer to the Wall Connector installation guide.

13. Possible repair or resolution

  • Reconfigure the Wall Connector load-sharing arrangement so that no more than three Wall Connectors are paired with a primary unit.
  • An electrician may move one or more paired Wall Connectors to a different circuit.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA manufacturer communications/owner documentation published from May 2023 through March 2024 describe CC_f023 and the Wall Connector load-sharing configuration limit. Example: NHTSA MC-10250483, https://static.nhtsa.gov/odi/tsbs/2023/MC-10250483-9999.pdf

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified NHTSA-hosted Tesla documentation: https://static.nhtsa.gov/odi/tsbs/2023/MC-10250483-9999.pdf

19. Frequently asked questions

What does Tesla alert CC_f023 mean?

It means more than three Wall Connectors are paired with the same primary unit in a load-sharing network.

How many Wall Connectors can be paired with one primary unit?

No more than three, according to the verified Tesla documentation.

Who should correct this alert?

Tesla’s verified guidance says to consult an electrician.

20. Sources & verification

Verified
Show all 24 verified sources
Tesla CC_f023: Unable to charge - Too many Wall Connectors Ensure no… | EV Diagnostics