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Audi P023800

Turbo charger boost sensor (a) circ. high input Previous work Document any past work performed for this concern. Model(s) affected 2022 Q3 2.0 TSFI VIN Range (if applicable) NA Cir

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence. The verified sources do not address charging.
ServiceContact an Audi service provider for diagnosis. The verified documentation specifies a worksheet-based circuit inspection for the 2022 Q3 2.0 TFSI.
Confidence95%

Quick answer

P023800 is identified in the verified Audi material as “Turbo charger boost sensor (a) circ. high input.” The supplied official documentation applies this diagnostic worksheet to the 2022 Audi Q3 2.0 TFSI, not to an electric e-tron model.

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 P023800 mean?

P023800 is identified in the verified Audi material as “Turbo charger boost sensor (a) circ. high input.” The supplied official documentation applies this diagnostic worksheet to the 2022 Audi Q3 2.0 TFSI, not to an electric e-tron model.

2. Technical explanation

Audi’s verified worksheet labels P023800 as a turbocharger boost sensor A circuit high-input fault. The worksheet calls for documenting prior work and performing circuit-focused checks between G31 and T10kx, including harness wiggle testing, pin fitment/pin drag, and circuit-resistance checks if needed. The supplied evidence does not establish a specific failed component or an EV high-voltage-system fault.

3. What system is affected?

Turbocharger boost pressure sensor/circuit (G31) and associated engine-management wiring, as described for the 2022 Audi Q3 2.0 TFSI.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • The official material associates this code with an illuminated check-engine lamp on the 2022 Audi Q3 2.0 TFSI.

6. Possible causes

  • Not yet established by verified evidence. The official worksheet directs inspection of the G31-to-T10kx circuit, including harness movement, terminal fitment/pin drag, and resistance checks.

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. The verified sources do not address charging.

9. What you can safely do

  • Record any previous work performed for the concern.
  • Arrange diagnosis by a qualified Audi service provider.
  • Provide the stored DTC and check-engine-lamp condition to the service provider.

10. Step-by-step troubleshooting

  1. For the 2022 Q3 2.0 TFSI worksheet, document prior work.
  2. Perform a harness wiggle test.
  3. Check connector pin fitment and pin drag.
  4. Check circuit resistance if needed.
  5. Document findings with photos and the Q3 boost-pressure-sensor worksheet.

11. When to contact service

Contact an Audi service provider for diagnosis. The verified documentation specifies a worksheet-based circuit inspection for the 2022 Q3 2.0 TFSI.

12. What the service center may check

  • Document previous work.
  • Inspect the G31-to-T10kx circuit.
  • Perform the specified harness wiggle test.
  • Check pin fitment and pin drag.
  • Check circuit resistance if needed.
  • Document findings with photographs and the applicable worksheet.

13. Possible repair or resolution

  • Not yet established by verified evidence. The supplied official material provides diagnostic and documentation steps but does not establish a specific repair for P023800.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA Manufacturer Communication 10225453, published October 14, 2022: Audi Q3 boost-pressure-sensor analysis worksheet for 2022 Q3 2.0 TFSI; includes P023800.
  • NHTSA Manufacturer Communication 10227178, published November 3, 2022: lists P023800 among boost-pressure-sensor DTCs for the 2022 Q3 2.0.
  • NHTSA Manufacturer Communication 10228840, published December 16, 2022: lists P023800 among boost-pressure-sensor DTCs for the 2022 Q3 2.0.
  • NHTSA Manufacturer Communication 10230994, published January 27, 2023: lists P023800 among boost-pressure-sensor DTCs for the 2022 Q3 2.0.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified official sources: NHTSA manufacturer communications 10225453, 10227178, 10228840, and 10230994. Although the supplied applicability dataset lists 2021–2023 Audi e-tron and e-tron GT vehicles in the US, the supplied source evidence itself describes the P023800 worksheet for the 2022 Audi Q3 2.0 TFSI. Applicability of this engine-related worksheet to e-tron or e-tron GT vehicles is not established by the verified evidence.

19. Frequently asked questions

What does P023800 mean?

The verified Audi worksheet defines it as “Turbo charger boost sensor (a) circ. high input.”

Which vehicle does the official worksheet identify?

The supplied official worksheet identifies the 2022 Audi Q3 2.0 TFSI.

Does this evidence establish an e-tron high-voltage or charging problem?

No. The supplied evidence does not address the high-voltage battery, charging system, or charging safety.

What checks does the official worksheet call for?

It calls for prior-work documentation, a harness wiggle test, pin fitment/pin-drag checks, and circuit-resistance checks if needed.

20. Sources & verification

Verified
Audi P023800: Turbo charger boost sensor (a) circ. high input Previous… | EV Diagnostics