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Audi B1A8AF0

open circuit 3211295 B200000 Control module faulty 1049088 P0CA400 Hybrid/High voltage battery load voltage too high 14745862 P1A1500 Charging unit 2 function restriction 14746766

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact an Audi dealer or qualified Audi service provider for diagnosis, particularly if charging or charge-door operation concerns are present.
Confidence95%

Quick answer

For 2021–2022 Audi e-tron Sportback vehicles in the US, B1A8AF0 may be stored in the high-voltage battery charger control module (J1050, address 00C6). Audi’s referenced communication states it can be found during PDI or other diagnostic work with no customer concerns reported.

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 B1A8AF0 mean?

For 2021–2022 Audi e-tron Sportback vehicles in the US, B1A8AF0 may be stored in the high-voltage battery charger control module (J1050, address 00C6). Audi’s referenced communication states it can be found during PDI or other diagnostic work with no customer concerns reported.

2. Technical explanation

The verified NHTSA-posted Audi manufacturer communication lists B1A8AF0 as: “Charge door 1 LIN actuator, path of movement fault,” with symptom code 3211268. The same communication lists other DTCs that may be stored in J1050, but the supplied evidence does not establish that they are caused by B1A8AF0 or that they must occur together.

3. What system is affected?

High-voltage battery charger control module J1050 (diagnostic address 00C6); charge door 1 LIN actuator path of movement.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • No customer concerns may be present; the DTC may be found during PDI or other diagnostic work.

6. Possible causes

  • A charge door 1 LIN actuator path-of-movement fault is identified by the verified DTC designation.
  • The 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?

Not yet established by verified evidence.

9. What you can safely do

  • Have the vehicle assessed using Audi diagnostic procedures if B1A8AF0 is stored.
  • Do not attempt high-voltage system repairs yourself.

10. Step-by-step troubleshooting

  1. Verify whether B1A8AF0 with symptom code 3211268 is stored in J1050, address 00C6.
  2. Further diagnostic steps are not provided in the supplied verified evidence.

11. When to contact service

Contact an Audi dealer or qualified Audi service provider for diagnosis, particularly if charging or charge-door operation concerns are present.

12. What the service center may check

  • Check the high-voltage battery charger control module J1050 at address 00C6 for stored B1A8AF0 and symptom code 3211268.
  • Any additional service checks are not yet established by verified evidence.

13. Possible repair or resolution

  • A specific repair resolution is not included in the supplied verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA Manufacturer Communication PDF 10189600: A9321442062631_1, published March 29, 2021. It applies to 2021–2022 Audi e-tron Sportback and lists B1A8AF0 in J1050 as “Charge door 1 LIN actuator, path of movement fault,” symptom code 3211268.

16. Recall information

  • No recall information is established by the supplied verified evidence.

17. Official manufacturer information

Official source: NHTSA-posted Audi manufacturer communication 10189600, https://static.nhtsa.gov/odi/tsbs/2021/MC-10189600-0001.pdf

19. Frequently asked questions

What does Audi DTC B1A8AF0 mean?

In the supplied Audi communication, B1A8AF0 is designated “Charge door 1 LIN actuator, path of movement fault,” with symptom code 3211268.

Which vehicles are covered by the verified evidence?

The supplied applicability evidence identifies US-market 2021–2022 Audi e-tron vehicles, while the manufacturer communication specifically refers to 2021–2022 e-tron Sportback.

Can B1A8AF0 be present without a customer complaint?

Yes. The Audi communication states that no customer concerns may be present and that the DTC can be found during PDI or other diagnostic work.

20. Sources & verification

Verified
Audi B1A8AF0: open circuit 3211295 B200000 Control module faulty… | EV Diagnostics