Verified EV diagnostic knowledge page

Tesla CC_a043

Wall Connector configuration must be completed Refer to Installation Guide to enable charging

Common search variants: CCa043 · CC-a043 · CC a043 · Search ignores case and common separators.

DriveNot yet established by verified evidence.
ChargeCharging cannot be enabled using the affected Wall Connector until its configuration/commissioning is completed.
ServiceThe verified guidance directs users to the Wall Connector Installation Guide. Contact a qualified electrician for electrical installation or commissioning support where required. Tesla service involvement is not established by the supplied evidence.
Confidence95%

Quick answer

Tesla alert CC_a043 means the Wall Connector configuration is incomplete. The Wall Connector must be commissioned to configure the circuit-breaker size and protective-earth connection type before charging can be enabled.

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

Video guides

Watch Videos

Relevant videos play here without leaving this diagnostic page.

No sufficiently relevant embeddable video has been accepted for this diagnostic yet.

Videos are supporting material and never override OEM or regulator evidence.

1. What does CC_a043 mean?

Tesla alert CC_a043 means the Wall Connector configuration is incomplete. The Wall Connector must be commissioned to configure the circuit-breaker size and protective-earth connection type before charging can be enabled.

2. Technical explanation

Verified NHTSA-hosted Tesla manufacturer communications state that this alert is issued when Wall Connector configuration is incomplete. Commissioning is required to appropriately configure the circuit-breaker size and protective-earth connection type. The alert directs the user to the Wall Connector Installation Guide and commissioning information to enable charging.

3. What system is affected?

Tesla Wall Connector configuration/commissioning, including circuit-breaker-size and protective-earth connection-type settings.

4. How serious is this code?

The diagnostic record lists severity as unknown. Verified evidence establishes that charging cannot be enabled until Wall Connector commissioning is completed.

5. Symptoms you may notice

  • CC_a043 alert: “Wall Connector configuration must be completed Refer to Installation Guide to enable charging.”
  • Charging is not enabled through the affected Wall Connector until commissioning is completed.

6. Possible causes

  • Wall Connector configuration is incomplete.
  • The Wall Connector has not been commissioned to configure the circuit-breaker size and protective-earth connection type.

7. Can I still drive the vehicle?

Not yet established by verified evidence.

8. Can I charge the vehicle?

Charging cannot be enabled using the affected Wall Connector until its configuration/commissioning is completed.

9. What you can safely do

  • Refer to the Installation Guide for the affected Wall Connector.
  • Arrange for Wall Connector commissioning as specified in the applicable installation guidance.
  • Use qualified electrical support where required; do not attempt electrical wiring work yourself.

10. Step-by-step troubleshooting

  1. Confirm that the displayed alert is CC_a043.
  2. Consult the commissioning information in the applicable Wall Connector Installation Guide.
  3. Have the Wall Connector commissioned to configure the circuit-breaker size and protective-earth connection type.

11. When to contact service

The verified guidance directs users to the Wall Connector Installation Guide. Contact a qualified electrician for electrical installation or commissioning support where required. Tesla service involvement is not established by the supplied evidence.

12. What the service center may check

  • Verify Wall Connector commissioning status.
  • Verify the configured circuit-breaker size.
  • Verify the configured protective-earth connection type.
  • Follow the applicable Wall Connector Installation Guide during commissioning.

13. Possible repair or resolution

  • Complete Wall Connector commissioning with the circuit-breaker size and protective-earth connection type appropriately configured.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA-hosted Tesla manufacturer communications describe CC_a043 as incomplete Wall Connector configuration and direct commissioning. Examples include NHTSA Manufacturer Communication PDFs 10250480 and 10250484, published December 1, 2023.
  • Official information: https://static.nhtsa.gov/odi/tsbs/2023/MC-10250480-9999.pdf

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

NHTSA-hosted Tesla manufacturer communication: https://static.nhtsa.gov/odi/tsbs/2023/MC-10250480-9999.pdf

19. Frequently asked questions

What does Tesla CC_a043 mean?

It means Wall Connector configuration is incomplete.

What is required to enable charging?

The Wall Connector must be commissioned to appropriately configure the circuit-breaker size and protective-earth connection type.

Can I drive with CC_a043?

Not yet established by verified evidence.

Does CC_a043 identify a vehicle fault?

Verified evidence identifies incomplete Wall Connector configuration. It does not establish a vehicle fault.

20. Sources & verification

Accepted ResearchVerified
Show all 58 verified sources
Tesla CC_a043: Wall Connector configuration must be completed Refer to… | EV Diagnostics