Audi P0AA4
Specific Equipment e-tron GT 2022 All Not Applicable Condition Customer states: • Various concerns about the high-voltage system or the vehicle. • After switching the ignition on t
Quick answer
For a 2022 Audi e-tron GT in the US, P0AA4 is listed in Audi Technical Service Bulletin 93 21 60 (2065473/1), dated December 22, 2021, among Hybrid Battery Management fault codes associated with customer reports of high-voltage-system or vehicle concerns. The supplied evidence does not establish the exact fault definition, driving status, charging status, cause, or repair for P0AA4 alone.
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 P0AA4 mean?
For a 2022 Audi e-tron GT in the US, P0AA4 is listed in Audi Technical Service Bulletin 93 21 60 (2065473/1), dated December 22, 2021, among Hybrid Battery Management fault codes associated with customer reports of high-voltage-system or vehicle concerns. The supplied evidence does not establish the exact fault definition, driving status, charging status, cause, or repair for P0AA4 alone.
2. Technical explanation
Verified evidence identifies P0AA4 as one of 12 DTCs referenced in Audi bulletin 93 21 60 (2065473/1): P0AA1, P0AA2, P0AA4, P0AA5, P0AE2, P0AE3, P1609, P168A, P1A01, P1A37, P1D5F, and P1D65. The bulletin is categorized as Hybrid Battery Management material and applies to the 2022 Audi e-tron GT, all VINs, with vehicle-specific equipment marked not applicable. The provided excerpt states that customers may report various concerns about the high-voltage system or vehicle, including concerns after ignition is switched on. The excerpt is incomplete, so the specific technical meaning of P0AA4 is not yet established by verified evidence.
3. What system is affected?
Hybrid Battery Management / high-voltage system context is established by the cited Audi bulletin.
4. How serious is this code?
Unknown. Severity is not established by the supplied verified evidence.
5. Symptoms you may notice
- Customers may report various concerns about the high-voltage system or the vehicle.
- The supplied bulletin excerpt references concerns after switching the ignition on, but the complete symptom description is not provided.
- A symptom uniquely attributable to P0AA4 is not yet established by verified evidence.
6. Possible causes
- 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
- Do not attempt high-voltage battery, cable, connector, or electrical-system repairs yourself.
- Have the vehicle evaluated by an Audi-authorized service provider if P0AA4 is present or high-voltage-system concerns are reported.
- Follow vehicle warnings and instructions shown in the instrument cluster and owner documentation.
10. Step-by-step troubleshooting
- Confirm the stored DTCs with appropriate diagnostic equipment.
- Record any instrument-cluster messages and the operating conditions when the concern occurs.
- Use the full Audi technical service information applicable to the vehicle; the supplied excerpt does not provide a complete diagnostic procedure for P0AA4.
11. When to contact service
Service evaluation is appropriate because P0AA4 appears in an Audi Hybrid Battery Management bulletin for the 2022 e-tron GT. The supplied evidence does not state an urgency level or a mandatory repair instruction.
12. What the service center may check
- Check the complete Audi bulletin 93 21 60 (2065473/1) and applicable Audi service information.
- Scan for P0AA4 and any accompanying DTCs, including the other codes listed in the bulletin.
- Perform only manufacturer-directed diagnosis by trained personnel qualified for high-voltage vehicles.
13. Possible repair or resolution
- Not yet established by verified evidence.
14. Affected vehicles
- Audi e-tron GT · 2022 · US
15. Related TSBs / service bulletins
- Audi Technical Service Bulletin 93 21 60 (2065473/1), dated December 22, 2021, is referenced by NHTSA manufacturer communication PDF 10205971.
- The bulletin applies to the 2022 Audi e-tron GT, all VINs, in the supplied applicability record.
- P0AA4 is listed among 12 DTCs in the bulletin's Hybrid Battery Management context.
16. Recall information
- Not yet established by verified evidence.
17. Official manufacturer information
NHTSA Manufacturer Communication PDF 10205971: https://static.nhtsa.gov/odi/tsbs/2021/MC-10205971-0001.pdf
19. Frequently asked questions
What vehicle is covered by the supplied evidence?
The supplied applicability record covers the US-market 2022 Audi e-tron GT, all VINs.
Does the evidence define P0AA4?
No. The supplied bulletin excerpt lists P0AA4 but does not provide its exact definition.
Does P0AA4 confirm that the vehicle cannot be driven or charged?
No. Driving and charging status are not yet established by verified evidence.
Is there a verified repair for P0AA4?
No. The supplied excerpt does not provide a verified repair resolution for P0AA4.