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Audi C12BB00

Control motor

DriveUnknown. Safe-to-drive status is not yet established by verified evidence.
ChargeUnknown. The verified communication states that charging can temporarily suspend with certain DC chargers, but it does not establish an overall safe-to-charge determination.
ServiceContact an Audi service provider for diagnosis if C12BB00 is stored, charging repeatedly suspends, or other charging-related faults are present.
Confidence95%

Quick answer

C12BB00 is identified by Audi as “Control motor.” Verified evidence links it to a condition in which certain DC chargers can interrupt charger-to-vehicle communication, temporarily suspending 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 C12BB00 mean?

C12BB00 is identified by Audi as “Control motor.” Verified evidence links it to a condition in which certain DC chargers can interrupt charger-to-vehicle communication, temporarily suspending charging.

2. Technical explanation

An official Audi/NHTSA manufacturer communication lists DTC C12BB00 (Control motor) among DTCs that may be stored when communication between certain DC chargers and the vehicle is interrupted. The communication states that charging can temporarily suspend. The supplied evidence does not establish a component-level failure of the motor or a specific repair for C12BB00 alone.

3. What system is affected?

Charging-related vehicle systems are implicated by the verified communication. A more specific system assignment is not yet established by verified evidence.

4. How serious is this code?

Unknown. The supplied diagnostic record does not provide a severity classification.

5. Symptoms you may notice

  • Charging may temporarily suspend when using certain DC chargers.
  • C12BB00 may be stored with other charging-related DTCs.

6. Possible causes

  • Certain DC chargers may interrupt communication between the charger and vehicle.

7. Can I still drive the vehicle?

Unknown. Safe-to-drive status is not yet established by verified evidence.

8. Can I charge the vehicle?

Unknown. The verified communication states that charging can temporarily suspend with certain DC chargers, but it does not establish an overall safe-to-charge determination.

9. What you can safely do

  • If DC charging temporarily suspends, use caution and follow the vehicle and charging-station instructions.
  • Arrange diagnosis by an Audi service provider if the DTC persists or charging concerns continue.
  • Do not attempt high-voltage system repairs yourself.

10. Step-by-step troubleshooting

  1. Confirm whether the event occurred during DC charging.
  2. Record the charging station, charging session conditions, and any additional stored DTCs for the service visit.
  3. Have an Audi service provider retrieve and evaluate the complete fault memory.

11. When to contact service

Contact an Audi service provider for diagnosis if C12BB00 is stored, charging repeatedly suspends, or other charging-related faults are present.

12. What the service center may check

  • Retrieve and assess the complete diagnostic fault memory.
  • Assess the charging event and charger-to-vehicle communication in accordance with Audi service procedures.

13. Possible repair or resolution

  • Not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Official Audi/NHTSA manufacturer communication PDF 10191572, published April 30, 2021: identifies C12BB00 (Control motor) among DTCs associated with interrupted communication between certain DC chargers and the vehicle, which can temporarily suspend charging.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified source: NHTSA Manufacturer Communication PDF 10191572, Audi document A9321472061788_3, published April 30, 2021: https://static.nhtsa.gov/odi/tsbs/2021/MC-10191572-0001.pdf

19. Frequently asked questions

What does Audi DTC C12BB00 mean?

The supplied Audi diagnostic record defines C12BB00 as “Control motor.”

Can C12BB00 be related to DC charging?

Yes. The verified Audi/NHTSA communication lists C12BB00 among DTCs associated with interrupted communication between certain DC chargers and the vehicle, which can temporarily suspend charging.

Which vehicles are covered by the supplied evidence?

The supplied applicability record identifies 2020–2021 Audi e-tron vehicles in the United States.

Does C12BB00 prove that a motor has failed?

No. The supplied evidence does not establish a component-level motor failure.

20. Sources & verification

Verified
Audi C12BB00: Control motor | EV Diagnostics