Volkswagen P0461
on (Untouched Vehicles) Electric ID.4 25 All All DTC Active U122900 with symtom code 31949 stored in AW01
Quick answer
For a 2025 Volkswagen ID.4, the verified evidence identifies an active U122900 fault with symptom code 31949 stored in control module AW01 on untouched vehicles. Although this page is indexed as P0461, the supplied evidence does not establish P0461 as an ID.4 fault code or define the U122900/AW01 fault condition.
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 P0461 mean?
For a 2025 Volkswagen ID.4, the verified evidence identifies an active U122900 fault with symptom code 31949 stored in control module AW01 on untouched vehicles. Although this page is indexed as P0461, the supplied evidence does not establish P0461 as an ID.4 fault code or define the U122900/AW01 fault condition.
2. Technical explanation
The supplied official NHTSA manufacturer-communication evidence lists: “Electric ID.4 25 All All DTC Active U122900 with symtom code 31949 stored in AW01.” It does not provide a fault definition, diagnostic procedure, root cause, or repair procedure for this ID.4 entry. The same source material separately associates P0461 with a 2025 Jetta 1.5 DNKA and a MIL-on condition, not with the ID.4.
3. What system is affected?
Not yet established by verified evidence. The evidence identifies module AW01 but does not define its system function.
4. How serious is this code?
Unknown. The verified diagnostic record lists severity as unknown.
5. Symptoms you may notice
- An active U122900 DTC with symptom code 31949 stored in AW01 is verified for 2025 Volkswagen ID.4 vehicles.
- No driver-visible symptoms are established by the supplied verified evidence for this ID.4 entry.
6. Possible causes
- Not yet established by verified evidence.
7. Can I still drive the vehicle?
Unknown. The verified diagnostic record lists safe-to-drive status as unknown.
8. Can I charge the vehicle?
Unknown. The verified diagnostic record lists safe-to-charge status as unknown.
9. What you can safely do
- Record all warning messages and the conditions when they appeared.
- Have a Volkswagen-qualified service facility retrieve and evaluate the active DTC, symptom code, and AW01 fault information.
- Do not attempt high-voltage diagnosis or repair based on this information.
10. Step-by-step troubleshooting
- Confirm vehicle applicability: Volkswagen ID.4, model year 2025, United States.
- Confirm whether U122900 is active and whether symptom code 31949 is stored in AW01.
- Further diagnostic steps are not established by the supplied verified evidence.
11. When to contact service
Service need is listed as unknown in the verified diagnostic record. However, an active DTC is documented in the official manufacturer communication; arrange professional Volkswagen diagnostic evaluation if the fault is present.
12. What the service center may check
- Retrieve fault memory and confirm active U122900 with symptom code 31949 in AW01.
- Review the applicable Volkswagen manufacturer communication and current vehicle diagnostic information.
- Additional service checks are not established by the supplied verified evidence.
13. Possible repair or resolution
- Not yet established by verified evidence.
14. Affected vehicles
- Volkswagen ID.4 · 2023–2025 · US
- Volkswagen ID.4 · 2025 · US
15. Related TSBs / service bulletins
- NHTSA Manufacturer Communication PDF 11027269: VIN4APIN20251210, published December 10, 2025. The supplied summary lists a 2025 Volkswagen ID.4 entry: active U122900 with symptom code 31949 stored in AW01.
- NHTSA Manufacturer Communication PDF 11025450: VIN4APIN20251020, published October 20, 2025. Its supplied summary includes ID.4 model years 2023–2025 under “CMCe Faults” and “Customer states Electrical System Error,” but does not establish that this applies specifically to U122900 with symptom code 31949.
- NHTSA Manufacturer Communication PDF 11025449: VIN4APIN20251008, published October 8, 2025. Its supplied summary includes ID.4 model years 2023–2025 under “CMCe Faults” and an electrical-system-error customer statement, but does not establish that this applies specifically to U122900 with symptom code 31949.
16. Recall information
- No recall information was supplied or established by the verified evidence.
17. Official manufacturer information
Official NHTSA manufacturer communications supplied: https://static.nhtsa.gov/odi/tsbs/2026/MC-11027269-0001.pdf ; https://static.nhtsa.gov/odi/tsbs/2025/MC-11025450-0001.pdf ; https://static.nhtsa.gov/odi/tsbs/2025/MC-11025449-0001.pdf
19. Frequently asked questions
Does P0461 apply to the 2025 Volkswagen ID.4 in the supplied evidence?
No. The supplied evidence associates P0461 with a 2025 Jetta 1.5 DNKA and a MIL-on condition. For the 2025 ID.4, it identifies active U122900 with symptom code 31949 stored in AW01.
What does U122900 with symptom code 31949 in AW01 mean?
Its meaning is not yet established by the supplied verified evidence. The evidence verifies only that the code is active and stored in AW01 for the listed 2025 ID.4 application.
Is it safe to drive or charge?
Not yet established by verified evidence. Both safe-to-drive and safe-to-charge status are recorded as unknown.
Is there a verified repair?
No verified repair resolution was supplied.