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BYD B2AB64B

Electric compressor internal temperature abnormal

DriveUnknown. Whether the vehicle can be driven is not established by verified evidence.
ChargeUnknown. Whether the vehicle can be charged is not established by verified evidence.
ServiceService requirement is unknown in the supplied evidence. Professional diagnosis is appropriate because this code concerns the electric HVAC compressor.
Confidence95%

Quick answer

DTC B2AB64B indicates an abnormal internal temperature condition in the electric HVAC compressor on applicable BYD vehicles.

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 B2AB64B mean?

DTC B2AB64B indicates an abnormal internal temperature condition in the electric HVAC compressor on applicable BYD vehicles.

2. Technical explanation

Verified evidence identifies B2AB64B as “Electric compressor internal temperature abnormal” / “Compressor internal temperature abnormal.” The evidence does not establish a more specific fault mechanism, threshold, or repair procedure.

3. What system is affected?

HVAC compressor (electric compressor).

4. How serious is this code?

Unknown. Severity is not established by the verified evidence.

5. Symptoms you may notice

  • Not yet established by verified evidence.

6. Possible causes

  • Not yet established by verified evidence.

7. Can I still drive the vehicle?

Unknown. Whether the vehicle can be driven is not established by verified evidence.

8. Can I charge the vehicle?

Unknown. Whether the vehicle can be charged is not established by verified evidence.

9. What you can safely do

  • Do not attempt high-voltage HVAC compressor repair or disassembly.
  • Arrange professional diagnosis if the code is present.

10. Step-by-step troubleshooting

  1. Use appropriate professional diagnostic equipment to confirm B2AB64B and assess the HVAC compressor system. Further diagnostic steps are not established by verified evidence.

11. When to contact service

Service requirement is unknown in the supplied evidence. Professional diagnosis is appropriate because this code concerns the electric HVAC compressor.

12. What the service center may check

  • Confirm the presence of DTC B2AB64B.
  • Assess the electric HVAC compressor system using applicable BYD diagnostic information. Specific test steps are not established by verified evidence.

13. Possible repair or resolution

  • Not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Not yet established by verified evidence.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified technical-manual evidence: 17VIN technical manual index, “BYD SEALION 7 diagnostic evidence,” locator: “SEALION 7 | Sealion 07 EV / 2024 | B2AB64B”; and Indexed technical document, “BYD SEAL diagnostic evidence,” locator: “SEAL | European technical-training vehicle | B2AB64B.”

19. Frequently asked questions

What does B2AB64B mean?

It means the electric HVAC compressor has an abnormal internal temperature condition.

Which vehicles are supported by the verified evidence?

BYD SEAL, model years 2022–2026, Global region; and BYD SEALION 7, model year 2024, Global region.

Can I drive or charge the vehicle with B2AB64B?

Not yet established by verified evidence.

20. Sources & verification

Verified
BYD B2AB64B: Electric compressor internal temperature abnormal | EV Diagnostics