Audi P31D100
Charging station not active 2097301 U15BF00 Intelligent charging function – faulty
Quick answer
For certain 2021–2022 Audi e-tron vehicles in the US, P31D100 is listed in an Audi/NHTSA manufacturer communication as “Charge socket A temperature sensor electrical error.” The same communication separately lists U15BF00 as “Intelligent charging function – faulty” and U15B500 as “Quick battery charging (DC) – Charging station not active.”
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 P31D100 mean?
For certain 2021–2022 Audi e-tron vehicles in the US, P31D100 is listed in an Audi/NHTSA manufacturer communication as “Charge socket A temperature sensor electrical error.” The same communication separately lists U15BF00 as “Intelligent charging function – faulty” and U15B500 as “Quick battery charging (DC) – Charging station not active.”
2. Technical explanation
The supplied official manufacturer communication identifies P31D100 with the designation “Charge socket A temperature sensor electrical error” (reference 14746766). The diagnostic record’s combined title also includes 2097301/U15BF00, but the cited communication assigns U15BF00 to “Intelligent charging function – faulty,” rather than to P31D100. This indicates that the combined title contains multiple diagnostic references.
3. What system is affected?
The verified evidence identifies the affected area for P31D100 as Charge socket A and its temperature-sensor electrical circuit. A broader system name is not yet established by verified evidence.
4. How serious is this code?
Unknown. The supplied verified evidence does not provide a severity classification.
5. Symptoms you may notice
- A charge socket A temperature-sensor electrical error is documented for P31D100.
- Further driver-observable symptoms are not yet established by verified evidence.
6. Possible causes
- An electrical error involving the Charge socket A temperature sensor is documented by the official manufacturer communication.
- Specific underlying causes are 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
- Use the vehicle and charging equipment in accordance with the owner’s manual.
- Have the diagnostic trouble code assessed by a qualified Audi service provider.
- Do not attempt high-voltage or charge-socket electrical repairs yourself.
10. Step-by-step troubleshooting
- Confirm the stored DTC and diagnostic address with approved diagnostic equipment.
- Consult the applicable Audi manufacturer communication and perform diagnosis according to Audi service procedures.
- Detailed test steps are not provided in the supplied verified evidence.
11. When to contact service
Contact an Audi dealer or qualified Audi EV service provider for diagnosis, particularly if charging is affected or the code returns.
12. What the service center may check
- Retrieve and document P31D100 and any accompanying DTCs.
- Inspect and diagnose the Charge socket A temperature-sensor electrical fault using Audi-approved procedures.
- Check whether U15BF00 (“Intelligent charging function – faulty”) or U15B500 (“Quick battery charging (DC) – Charging station not active”) are also stored, because the supplied communication lists them as separate DTCs.
13. Possible repair or resolution
- The required repair is not yet established by verified evidence.
- Repair should follow Audi-approved diagnosis after the actual stored DTCs and fault conditions are confirmed.
14. Affected vehicles
- Audi e-tron · 2021–2022 · US
15. Related TSBs / service bulletins
- NHTSA Manufacturer Communication PDF 10189600, document A9321442062631_1, published March 29, 2021. It lists P31D100 as “Charge socket A temperature sensor electrical error” and separately lists U15BF00 and U15B500.
- Source: https://static.nhtsa.gov/odi/tsbs/2021/MC-10189600-0001.pdf
16. Recall information
- No recall information was supplied in the verified evidence.
17. Official manufacturer information
Verified applicability: Audi e-tron, model years 2021–2022, US region. Source evidence is an NHTSA-hosted Audi manufacturer communication: https://static.nhtsa.gov/odi/tsbs/2021/MC-10189600-0001.pdf
19. Frequently asked questions
What does Audi P31D100 mean?
The supplied official manufacturer communication lists P31D100 as “Charge socket A temperature sensor electrical error.”
Is P31D100 the same as U15BF00?
No. In the supplied communication, P31D100 is listed as a charge-socket temperature-sensor electrical error, while U15BF00 is separately listed as “Intelligent charging function – faulty.”
Does this evidence confirm whether the vehicle can be driven or charged?
No. Driveability and charging safety status are not yet established by the supplied verified evidence.
Which vehicles are covered by the supplied applicability evidence?
The supplied applicability evidence identifies US-market 2021–2022 Audi e-tron vehicles.