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Audi P023700

Turbocharger Boost Sensor (A) Circ. Low Input  P023800: Turbo charger boost sensor (a) circ. high input Previous work Document any past work performed for this concern. Model(s) a

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceService evaluation is appropriate because the supplied official worksheet specifies circuit and connector diagnostic checks. Applicability to an Audi e-tron or e-tron GT is not established by the supplied TSB evidence.
Confidence95%

Quick answer

P023700 is listed in the supplied Audi material as “Turbocharger Boost Sensor (A) Circ. Low Input.” The verified Audi workshop material associates it with the 2022 Audi Q3 2.0 TFSI—not the supplied e-tron or e-tron GT applicability entries.

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 P023700 mean?

P023700 is listed in the supplied Audi material as “Turbocharger Boost Sensor (A) Circ. Low Input.” The verified Audi workshop material associates it with the 2022 Audi Q3 2.0 TFSI—not the supplied e-tron or e-tron GT applicability entries.

2. Technical explanation

The supplied official Audi/NHTSA communication identifies P023700 as a low-input circuit fault for Turbocharger Boost Sensor (A). Its worksheet directs diagnostic documentation of prior work, a harness wiggle test, terminal pin fitment and pin drag, circuit-resistance checks if needed, photographs of findings, and a Q3 boost-pressure-sensor worksheet. The evidence does not establish a specific failed component or repair.

3. What system is affected?

Turbocharger boost sensor (A) circuit, as named in the supplied Audi material.

4. How serious is this code?

Unknown. Severity is not established by the verified evidence.

5. Symptoms you may notice

  • The supplied official material states that the check-engine lamp is on for the Q3 boost-pressure-sensor concern.
  • No additional symptoms are established by verified evidence.

6. Possible causes

  • A specific cause is not established by verified evidence.
  • The official worksheet calls for evaluation of the harness, terminal pin fitment/pin drag, and circuit resistance; this establishes these as diagnostic inspection areas, not confirmed causes.

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

  • Arrange diagnosis by an Audi-qualified service facility.
  • Provide the stored DTC and any prior repair history to the technician.
  • Do not attempt high-voltage or electrical circuit repair yourself.

10. Step-by-step troubleshooting

  1. Verified workshop diagnostic actions for the applicable 2022 Audi Q3 2.0 TFSI material include documenting prior work, performing a harness wiggle test, checking pin fitment and pin drag, checking circuit resistance if needed, photographing findings, and completing the Q3 boost-pressure-sensor worksheet.
  2. No owner-performed troubleshooting procedure is established by the supplied evidence.

11. When to contact service

Service evaluation is appropriate because the supplied official worksheet specifies circuit and connector diagnostic checks. Applicability to an Audi e-tron or e-tron GT is not established by the supplied TSB evidence.

12. What the service center may check

  • Document previous work related to the concern.
  • Perform a harness wiggle test.
  • Check pin fitment and pin drag.
  • Check circuit resistance if needed.
  • Document findings with photographs.
  • Use the Q3 boost-pressure-sensor worksheet referenced by the official material.

13. Possible repair or resolution

  • Not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Audi/NHTSA manufacturer communications AVIN4PIN20230127 (published January 27, 2023), AVIN4PIN20221222 (published December 16, 2022), AVIN4Pin20221103 (published November 3, 2022), and AVIN4PIN20221014 (published October 14, 2022) include P023700 in a Q3 boost-pressure-sensor diagnostic worksheet context.
  • The supplied evidence identifies the affected vehicle in the worksheet as a 2022 Audi Q3 2.0 TFSI, with VIN range listed as N/A.

16. Recall information

  • No recall is established by the supplied verified evidence.

17. Official manufacturer information

Official source: NHTSA-hosted Audi manufacturer communication MC-10225453, “AVIN4PIN20221014,” published October 14, 2022: https://static.nhtsa.gov/odi/tsbs/2022/MC-10225453-0001.pdf

19. Frequently asked questions

What does P023700 mean?

The supplied Audi material defines it as “Turbocharger Boost Sensor (A) Circ. Low Input.”

Does the supplied service information apply to an e-tron or e-tron GT?

Not established. Although supplied applicability data lists certain e-tron and e-tron GT model years, the supplied official workshop communication specifically identifies a 2022 Q3 2.0 TFSI.

What does Audi’s worksheet instruct technicians to check?

It calls for documentation of previous work, a harness wiggle test, pin fitment and pin drag checks, circuit-resistance checks if needed, photographs of findings, and the Q3 boost-pressure-sensor worksheet.

20. Sources & verification

Verified
Audi P023700: Turbocharger Boost Sensor (A) Circ. Low Input  P023800:… | EV Diagnostics