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BYD U012187

Communication with ABS failed

DriveUnknown. Whether the vehicle can be driven has not yet been established by verified evidence.
ChargeUnknown. Whether the vehicle can be charged has not yet been established by verified evidence.
ServiceService requirement is unknown in the supplied evidence. Because this code reports failed ABS communication, obtain professional diagnosis before relying on ABS-related functions.
Confidence95%

Quick answer

BYD DTC U012187 means: Communication with ABS failed. Verified applicability includes certain BYD ATTO 3, DOLPHIN, and HAN vehicles listed below.

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 U012187 mean?

BYD DTC U012187 means: Communication with ABS failed. Verified applicability includes certain BYD ATTO 3, DOLPHIN, and HAN vehicles listed below.

2. Technical explanation

This is a Network-system diagnostic trouble code. The verified diagnostic meaning is that communication with the ABS has failed. The supplied evidence does not establish the specific failed component, wiring condition, network path, triggering conditions, or repair procedure.

3. What system is affected?

Network communication with the ABS.

4. How serious is this code?

Unknown. Severity has not yet been established by 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 has not yet been established by verified evidence.

8. Can I charge the vehicle?

Unknown. Whether the vehicle can be charged has not yet been established by verified evidence.

9. What you can safely do

  • Do not attempt high-voltage or ABS-system repair based on this code alone.
  • Arrange diagnosis by a qualified BYD service provider or suitably qualified automotive technician.

10. Step-by-step troubleshooting

  1. Confirm the stored DTC with an appropriate diagnostic tool.
  2. Further diagnostic steps have not yet been established by verified evidence.

11. When to contact service

Service requirement is unknown in the supplied evidence. Because this code reports failed ABS communication, obtain professional diagnosis before relying on ABS-related functions.

12. What the service center may check

  • Not yet 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 index evidence identifies U012187 as “Communication with ABS failed” for the listed BYD applications. No official manufacturer bulletin, recall, or repair instruction was supplied.

19. Frequently asked questions

What does BYD code U012187 mean?

It means “Communication with ABS failed.”

Which BYD vehicles are verified as applicable?

BYD ATTO 3 model years 2022–2026 (GLOBAL), BYD DOLPHIN model years 2021–2026 (GLOBAL), and BYD HAN model year 2023 (GLOBAL).

Is it safe to drive or charge with U012187?

This has not yet been established by verified evidence.

What causes U012187?

The specific cause has not yet been established by verified evidence.

20. Sources & verification

Verified
BYD U012187: Communication with ABS failed | EV Diagnostics