EV Diagnostics
Verified EV diagnostic knowledge page

BYD C050400

Left front wheel speed sensor air gap abnormal

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceService need is not yet established by verified evidence. If the DTC is present, a qualified BYD service provider or appropriately trained technician can diagnose the left front wheel speed sensor air-gap condition.
Confidence95%

Quick answer

BYD DTC C050400 means: Left front wheel speed sensor air gap abnormal.

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 C050400 mean?

BYD DTC C050400 means: Left front wheel speed sensor air gap abnormal.

2. Technical explanation

Verified evidence identifies C050400 as an abnormal air gap condition for the left front wheel speed sensor. The supplied evidence does not establish the specific measured air gap, the condition that set the DTC, or a repair procedure.

3. What system is affected?

Brake/IPB

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • Not yet established by verified evidence.

6. Possible causes

  • An abnormal left front wheel speed sensor air gap is established by verified evidence.
  • Further underlying causes are not yet established by verified evidence.

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 a qualified BYD service provider or appropriately trained technician.
  • Do not attempt high-voltage system repair based on this DTC.

10. Step-by-step troubleshooting

  1. Verified evidence supports checking the left front wheel speed sensor air-gap condition as part of professional diagnosis.
  2. Additional diagnostic steps are not yet established by verified evidence.

11. When to contact service

Service need is not yet established by verified evidence. If the DTC is present, a qualified BYD service provider or appropriately trained technician can diagnose the left front wheel speed sensor air-gap condition.

12. What the service center may check

  • Inspect and assess the left front wheel speed sensor air-gap condition. Further service checks are 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

  • No technical service bulletin information was supplied in the verified evidence.

16. Recall information

  • No recall information was supplied in the verified evidence.

17. Official manufacturer information

Verified technical-manual evidence: OBDTotal technical manual index, “BYD ATTO 3 diagnostic evidence,” locator: ATTO 3 / Yuan Plus (SC2E) / C050400. It identifies C050400 as “Left front wheel speed sensor air gap abnormal.” Applicability supplied: BYD ATTO 3, model years 2022–2026, Global.

19. Frequently asked questions

What does BYD code C050400 mean?

It means the left front wheel speed sensor air gap is abnormal.

Which vehicles does the supplied evidence cover?

The supplied applicability evidence covers the BYD ATTO 3, model years 2022 through 2026, Global region.

Is it safe to drive or charge with C050400?

Not yet established by verified evidence.

20. Sources & verification

Verified
BYD C050400: Left front wheel speed sensor air gap abnormal | EV Diagnostics