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Tesla CC_a007

Unable to charge - Input voltage too high Voltage must be within Wall Connector rating

Common search variants: CCa007 · CC-a007 · CC a007 · Search ignores case and common separators.

DriveNot yet established by verified evidence.
ChargeNo while CC_a007 is preventing charging. Tesla documentation identifies the alert as “Unable to charge.”
ServiceTesla documentation directs consultation with an electrician for the circuit breaker supplying the Wall Connector. Whether Tesla service is required for this alert is not yet established by verified evidence.
Confidence95%

Quick answer

Tesla alert CC_a007 means charging is unavailable because the Wall Connector detected input voltage outside its permitted rating. Tesla documentation describes this as over- or under-voltage protection and directs the owner to consult an electrician regarding the circuit breaker serving the Wall Connector.

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1. What does CC_a007 mean?

Tesla alert CC_a007 means charging is unavailable because the Wall Connector detected input voltage outside its permitted rating. Tesla documentation describes this as over- or under-voltage protection and directs the owner to consult an electrician regarding the circuit breaker serving the Wall Connector.

2. Technical explanation

CC_a007 is an OEM charging alert: “Unable to charge - Input voltage too high. Voltage must be within Wall Connector rating.” Although its title refers to high input voltage, Tesla’s documented alert meaning is over- or under-voltage protection. The verified evidence establishes an issue involving the Wall Connector input voltage and its permitted rating; it does not establish a specific failed component or vehicle fault.

3. What system is affected?

Tesla Wall Connector AC supply/input-voltage protection and the circuit breaker serving the Wall Connector.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • The vehicle displays CC_a007: “Unable to charge - Input voltage too high. Voltage must be within Wall Connector rating.”
  • Charging is unavailable when this alert is present.

6. Possible causes

  • The Wall Connector has entered over- or under-voltage protection.
  • The input voltage is not within the Wall Connector rating.
  • A more specific underlying cause is not yet established by verified evidence.

7. Can I still drive the vehicle?

Not yet established by verified evidence.

8. Can I charge the vehicle?

No while CC_a007 is preventing charging. Tesla documentation identifies the alert as “Unable to charge.”

9. What you can safely do

  • Consult an electrician to ensure appropriate voltage on the circuit breaker that services the Wall Connector.
  • Refer to the installation guide for the Wall Connector.

10. Step-by-step troubleshooting

  1. Have an electrician assess whether the voltage on the circuit breaker serving the Wall Connector is appropriate and within the Wall Connector rating.
  2. Use the applicable Wall Connector installation guide for installation and rating information.
  3. Do not attempt electrical or high-voltage repairs yourself.

11. When to contact service

Tesla documentation directs consultation with an electrician for the circuit breaker supplying the Wall Connector. Whether Tesla service is required for this alert is not yet established by verified evidence.

12. What the service center may check

  • Verify the voltage on the circuit breaker that services the Wall Connector is appropriate.
  • Verify that the supply voltage is within the Wall Connector rating.
  • Consult the applicable Wall Connector installation guide.

13. Possible repair or resolution

  • Correct the supply-voltage condition so it is within the Wall Connector rating. The precise repair method is not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA manufacturer communications reproduce Tesla owner documentation for CC_a007, including NHTSA document MC-10250484 (published 2023-12-01): https://static.nhtsa.gov/odi/tsbs/2023/MC-10250484-9999.pdf
  • Additional NHTSA manufacturer communication: MC-10253666 (published 2024-03-27): https://static.nhtsa.gov/odi/tsbs/2024/MC-10253666-9999.pdf

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified official NHTSA-hosted Tesla documentation states that CC_a007 is over- or under-voltage protection and instructs owners to consult an electrician to ensure appropriate voltage on the circuit breaker servicing the Wall Connector. Source: https://static.nhtsa.gov/odi/tsbs/2023/MC-10250484-9999.pdf

19. Frequently asked questions

What does Tesla CC_a007 mean?

It means charging is unavailable because input voltage must be within the Wall Connector rating. Tesla describes the alert as over- or under-voltage protection.

What should I do for CC_a007?

Consult an electrician to ensure appropriate voltage on the circuit breaker that services the Wall Connector, and refer to the Wall Connector installation guide.

Does CC_a007 prove that the vehicle has a fault?

No. The verified documentation establishes a Wall Connector input-voltage protection alert; it does not establish a specific vehicle fault.

20. Sources & verification

Accepted ResearchVerified
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