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BYD C003100

Left front wheel speed sensor signal fault

DriveUnknown. The supplied verified evidence does not establish whether the vehicle is safe to drive with C003100 present.
ChargeUnknown. The supplied verified evidence does not establish whether charging is affected or safe with C003100 present.
ServiceService need is listed as unknown in the supplied diagnostic record. A qualified BYD service provider can diagnose the left front wheel speed sensor signal fault.
Confidence95%

Quick answer

BYD DTC C003100 means “Left front wheel speed sensor signal fault.” Verified applicability: BYD ATTO 3, model years 2022–2026, Global market.

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 C003100 mean?

BYD DTC C003100 means “Left front wheel speed sensor signal fault.” Verified applicability: BYD ATTO 3, model years 2022–2026, Global market.

2. Technical explanation

This is a Brake/IPB diagnostic trouble code. The verified diagnostic evidence identifies a fault in the signal from the left front wheel speed sensor. Further fault mechanism, root cause, and repair procedure are not yet established by verified evidence.

3. What system is affected?

Brake/IPB system; left front wheel speed sensor signal.

4. How serious is this code?

Unknown. The supplied verified evidence does not assign a severity.

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. The supplied verified evidence does not establish whether the vehicle is safe to drive with C003100 present.

8. Can I charge the vehicle?

Unknown. The supplied verified evidence does not establish whether charging is affected or safe with C003100 present.

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 code; no high-voltage repair action is established by the supplied evidence.

10. Step-by-step troubleshooting

  1. Confirm the stored DTC using suitable diagnostic equipment.
  2. Further troubleshooting steps are not yet established by verified evidence.

11. When to contact service

Service need is listed as unknown in the supplied diagnostic record. A qualified BYD service provider can diagnose the left front wheel speed sensor signal fault.

12. What the service center may check

  • Read and confirm DTC C003100.
  • Additional 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 related TSB or service-bulletin relationship is established by verified evidence.

16. Recall information

No recall relationship is established by verified evidence.

17. Official manufacturer information

Verified source: OBDTotal technical manual index, “BYD ATTO 3 diagnostic evidence,” locator: ATTO 3 / Yuan Plus (SC2E) / C003100. https://obdtotal.com/product/byd-atto3-yuanplus-sc2e-service-manual/

19. Frequently asked questions

What does BYD code C003100 mean?

It means “Left front wheel speed sensor signal fault.”

Which vehicles are covered by the verified evidence?

BYD ATTO 3 vehicles for model years 2022–2026 in the Global market.

Can I drive with C003100?

Not yet established by verified evidence.

What causes C003100?

Not yet established by verified evidence.

20. Sources & verification

Verified
BYD C003100: Left front wheel speed sensor signal fault | EV Diagnostics