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Tesla CC_a010

Unable to charge - Wall Connector issue Wall Connector needs service

Common search variants: CCa010 · CC-a010 · CC a010 · Search ignores case and common separators.

DriveNot yet established by verified evidence.
ChargeThe alert states “Unable to charge.” Charging with the affected Wall Connector may be unavailable. Whether charging is possible by another method is not yet established by verified evidence.
ServiceThe Wall Connector needs service. Contact an appropriate Wall Connector service provider or qualified electrician; the verified Tesla material specifically directs owners to consult their electrician for incorrectly installed Wall Connector wiring.
Confidence95%

Quick answer

CC_a010 means Tesla detected a Wall Connector hardware issue and charging may be unavailable. The Wall Connector needs service.

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_a010 mean?

CC_a010 means Tesla detected a Wall Connector hardware issue and charging may be unavailable. The Wall Connector needs service.

2. Technical explanation

Verified Tesla owner-manual material filed with NHTSA identifies CC_a010 as “Unable to charge - Wall Connector issue Wall Connector needs service.” It means an internal issue was detected by the Wall Connector. Verified possible issues are: a contactor not working, failure of the internal ground-fault monitoring circuit self-test, a disconnected thermal sensor, or another Wall Connector hardware-component issue.

3. What system is affected?

Tesla Wall Connector / AC charging equipment.

4. How serious is this code?

Unknown. The diagnostic record does not establish a severity level.

5. Symptoms you may notice

  • Unable to charge.
  • The vehicle displays CC_a010: “Wall Connector needs service.”

6. Possible causes

  • Wall Connector contactor not working.
  • Wall Connector internal ground-fault monitoring circuit self-test failed.
  • Wall Connector thermal sensor disconnected.
  • Another Wall Connector hardware-component issue.

7. Can I still drive the vehicle?

Not yet established by verified evidence.

8. Can I charge the vehicle?

The alert states “Unable to charge.” Charging with the affected Wall Connector may be unavailable. Whether charging is possible by another method is not yet established by verified evidence.

9. What you can safely do

  • Arrange service for the Wall Connector.
  • Do not attempt internal Wall Connector repair.
  • Consult a qualified electrician for Wall Connector installation-related concerns, as stated in the verified Tesla material.
  • Refer to the Wall Connector installation guide for installation information.

10. Step-by-step troubleshooting

  1. Verified evidence does not provide owner-performed diagnostic or repair steps for CC_a010 beyond arranging Wall Connector service.
  2. A qualified electrician may assess installation-related concerns; do not perform electrical work on the Wall Connector yourself.

11. When to contact service

The Wall Connector needs service. Contact an appropriate Wall Connector service provider or qualified electrician; the verified Tesla material specifically directs owners to consult their electrician for incorrectly installed Wall Connector wiring.

12. What the service center may check

  • Check the Wall Connector for the hardware conditions identified by Tesla: contactor operation, internal ground-fault monitoring self-test status, thermal-sensor connection, and other internal hardware issues.
  • If installation is under review, have a qualified electrician assess Wall Connector wiring in accordance with the Wall Connector installation guide.

13. Possible repair or resolution

  • Service or repair of the Wall Connector is indicated by the alert. The specific repair resolution is not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA Manufacturer Communication PDF 10250480, published December 1, 2023: https://static.nhtsa.gov/odi/tsbs/2023/MC-10250480-9999.pdf
  • NHTSA Manufacturer Communication PDF 10250484, published December 1, 2023: https://static.nhtsa.gov/odi/tsbs/2023/MC-10250484-9999.pdf
  • NHTSA Manufacturer Communication PDF 10250485, published December 1, 2023: https://static.nhtsa.gov/odi/tsbs/2023/MC-10250485-9999.pdf

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Official NHTSA-hosted Tesla owner-manual/manufacturer-communication evidence documents CC_a010 as a Wall Connector hardware issue requiring Wall Connector service. Example: https://static.nhtsa.gov/odi/tsbs/2023/MC-10250480-9999.pdf

19. Frequently asked questions

What does Tesla alert CC_a010 mean?

It means the Wall Connector has detected an internal hardware issue and needs service.

What can cause CC_a010?

Verified listed possibilities are a failed contactor, a failed internal ground-fault monitoring self-test, a disconnected thermal sensor, or another Wall Connector hardware-component issue.

Can I drive with CC_a010?

Not yet established by verified evidence.

Can I charge with CC_a010?

The alert says “Unable to charge”; charging with the affected Wall Connector may be unavailable. Other charging options are not addressed by the verified evidence.

20. Sources & verification

Accepted ResearchVerified
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Tesla CC_a010: Unable to charge - Wall Connector issue Wall Connector… | EV Diagnostics