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Audi U041100

Machine 2, fault freewheel 44081 Technical Background Software issue. Production Solution Improved software. Service If the above conditions are confirmed, proceed as follows: Perf

DriveUnknown. The supplied verified evidence does not establish whether the vehicle is safe to drive with U041100.
ChargeUnknown. The supplied verified evidence does not establish whether the vehicle is safe to charge with U041100.
ServiceContact an authorized Audi service provider for diagnosis and to determine whether the applicable software update procedure applies.
Confidence95%

Quick answer

For certain 2022 US Audi e-tron GT and RS e-tron GT vehicles, DTC U041100 is documented in an official Audi/NHTSA service communication as “Invalid Data Received From Drive Motor Control Module ‘A’” (21633). The communication identifies a software issue and directs an SVM software update when its stated diagnostic conditions are confirmed.

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 U041100 mean?

For certain 2022 US Audi e-tron GT and RS e-tron GT vehicles, DTC U041100 is documented in an official Audi/NHTSA service communication as “Invalid Data Received From Drive Motor Control Module ‘A’” (21633). The communication identifies a software issue and directs an SVM software update when its stated diagnostic conditions are confirmed.

2. Technical explanation

The verified Audi service communication lists U041100 as an entry that may be stored in the engine control module, J623 (address word 0001). In that communication, U041100 is associated with “Invalid Data Received From Drive Motor Control Module ‘A’” (21633). The same communication describes a software issue, states that improved software was the production solution, and instructs technicians to perform an SVM update of the Electric Drive Control Unit (Power Electronics Rear) when the bulletin’s conditions are confirmed. The supplied evidence does not establish the full diagnostic criteria, exact update content, or whether U041100 alone is sufficient to apply the procedure.

3. What system is affected?

The verified evidence references communication/data received from Drive Motor Control Module “A” and an SVM update for the Electric Drive Control Unit (Power Electronics Rear). The diagnostic record does not otherwise establish the affected system name.

4. How serious is this code?

Unknown. The supplied verified evidence does not assign a severity level.

5. Symptoms you may notice

  • Not yet established by verified evidence.

6. Possible causes

  • A software issue is identified in the official service communication.
  • No other cause is established by the supplied verified evidence.

7. Can I still drive the vehicle?

Unknown. The supplied verified evidence does not establish whether the vehicle is safe to drive with U041100.

8. Can I charge the vehicle?

Unknown. The supplied verified evidence does not establish whether the vehicle is safe to charge with U041100.

9. What you can safely do

  • Record the stored DTCs and any warning messages for a qualified Audi service provider.
  • Arrange professional diagnosis using the applicable Audi service information.
  • Do not attempt high-voltage or drive-control-unit repair procedures yourself.

10. Step-by-step troubleshooting

  1. Have a qualified technician confirm whether the conditions specified in the applicable Audi service communication are present.
  2. If those conditions are confirmed, the communication directs an SVM update of the Electric Drive Control Unit (Power Electronics Rear).
  3. The supplied evidence does not establish additional owner-performed troubleshooting steps.

11. When to contact service

Contact an authorized Audi service provider for diagnosis and to determine whether the applicable software update procedure applies.

12. What the service center may check

  • Check whether U041100 is stored in engine control module J623, address word 0001.
  • Confirm the conditions specified by the applicable Audi service communication.
  • If confirmed, perform the directed SVM update of the Electric Drive Control Unit (Power Electronics Rear).

13. Possible repair or resolution

  • The official communication identifies improved software as the production solution.
  • The service direction in the supplied evidence is an SVM update of the Electric Drive Control Unit (Power Electronics Rear) after the bulletin conditions are confirmed.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA Manufacturer Communication PDF 10216850: A9322772067556_1, published July 27, 2022. It documents U041100 among DTCs relevant to its software-update procedure for the covered vehicles.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Official source: NHTSA Manufacturer Communication PDF 10216850: A9322772067556_1 (Audi), published July 27, 2022: https://static.nhtsa.gov/odi/tsbs/2022/MC-10216850-0001.pdf

19. Frequently asked questions

What does Audi DTC U041100 mean in the supplied evidence?

It is listed as “Invalid Data Received From Drive Motor Control Module ‘A’” (21633).

What repair does the official communication direct?

When the communication’s stated conditions are confirmed, it directs an SVM update of the Electric Drive Control Unit (Power Electronics Rear).

Which vehicles are covered by the supplied applicability data?

2022 US Audi e-tron GT and 2022 US Audi RS e-tron GT.

Is it safe to drive or charge with U041100?

Not yet established by verified evidence.

20. Sources & verification

Verified
Audi U041100: Machine 2, fault freewheel 44081 Technical Background… | EV Diagnostics