EV Diagnostics
Verified EV diagnostic knowledge page

Audi P053000

Air conditioning system pressure sensor electrical fault. • DTC P251500 – Refrigerant pressure sensor 2 electrical fault. Technical Background A failure of the sensor electronics c

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact an Audi service facility or qualified repair professional for diagnosis, particularly when the cabin air-conditioning system does not cool.
Confidence95%

Quick answer

For certain 2020–2022 U.S. Audi models, DTC P053000 indicates an air-conditioning system pressure-sensor electrical fault. Audi’s bulletin links it to loss of cabin cooling, which may be intermittent.

This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.

Video guides

Watch Videos

Relevant videos play here without leaving this diagnostic page.

No sufficiently relevant embeddable video has been accepted for this diagnostic yet.

Videos are supporting material and never override OEM or regulator evidence.

1. What does P053000 mean?

For certain 2020–2022 U.S. Audi models, DTC P053000 indicates an air-conditioning system pressure-sensor electrical fault. Audi’s bulletin links it to loss of cabin cooling, which may be intermittent.

2. Technical explanation

Audi states that a failure of the sensor electronics can cause loss of pressure evaluation. The bulletin identifies sensors with base part number 4M0959603 and a build date before calendar week 31 of 2021 as at issue (G395/G827). In affected cases, P053000 and/or P251500 may be stored in Thermal Management control module J1024, address word 00C5.

3. What system is affected?

Air-conditioning / thermal-management system; Thermal Management control module J1024 (address word 00C5).

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • The air-conditioning system does not cool the cabin.
  • The no-cooling condition may be intermittent.

6. Possible causes

  • Failure of the pressure-sensor electronics causing loss of pressure evaluation.
  • Audi identifies sensor base part number 4M0959603, with a build date before calendar week 31 of 2021, as at issue in the referenced bulletin.

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 service facility or qualified repair professional if cabin cooling is absent or intermittent.
  • Provide the stored DTC and the applicable Audi technical-service-bulletin information to the service facility.

10. Step-by-step troubleshooting

  1. Confirm whether P053000 and/or P251500 is stored in Thermal Management control module J1024, address word 00C5.
  2. Have the service facility assess applicability of Audi’s bulletin and the identified pressure sensor. Further diagnostic steps are not established by the supplied verified evidence.

11. When to contact service

Contact an Audi service facility or qualified repair professional for diagnosis, particularly when the cabin air-conditioning system does not cool.

12. What the service center may check

  • Verify the customer concern of no cabin cooling, including intermittent operation.
  • Check Thermal Management control module J1024 (address word 00C5) for DTC P053000 and/or P251500.
  • Assess whether the installed sensor is the identified 4M0959603 sensor with a build date before calendar week 31 of 2021.

13. Possible repair or resolution

  • The supplied verified evidence establishes that Audi published a technical service bulletin for this condition. The specific repair procedure is not included in the supplied evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Audi technical service bulletin A8723382068460_2, published January 31, 2023; NHTSA manufacturer communication MC-10230992-0001: https://static.nhtsa.gov/odi/tsbs/2023/MC-10230992-0001.pdf
  • Audi technical service bulletin A8722352068460_1, published November 9, 2022; NHTSA manufacturer communication MC-10226899-0001: https://static.nhtsa.gov/odi/tsbs/2022/MC-10226899-0001.pdf

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Audi’s official manufacturer communications filed with NHTSA describe this condition for the listed applications. The bulletin evidence identifies a technical service bulletin, not a safety recall.

19. Frequently asked questions

What does Audi DTC P053000 mean?

It means “Air conditioning system pressure sensor electrical fault.”

What may the driver notice?

Audi’s bulletin states that the air-conditioning system may not cool the cabin, and the condition may be intermittent.

What component is identified by Audi?

The bulletin identifies pressure sensor G395/G827 with base part number 4M0959603 and a build date before calendar week 31 of 2021 as at issue.

Is P053000 related to another code?

Yes. Audi’s bulletin states that P053000 and/or P251500 may be stored in Thermal Management control module J1024.

20. Sources & verification

Verified
Audi P053000: Air conditioning system pressure sensor electrical… | EV Diagnostics