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BYD B229D17

High-frequency receiver module oversupply

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. A qualified BYD service provider can diagnose a persistent B229D17 fault.
Confidence95%

Quick answer

B229D17 is a BYD Smart key DTC meaning “High-frequency receiver module oversupply.” Verified applicability: BYD ATTO 3, model years 2022–2026, Global.

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 B229D17 mean?

B229D17 is a BYD Smart key DTC meaning “High-frequency receiver module oversupply.” Verified applicability: BYD ATTO 3, model years 2022–2026, Global.

2. Technical explanation

The verified diagnostic evidence identifies B229D17 as a Smart key system fault for high-frequency receiver module oversupply. The supplied evidence does not establish the electrical source, operating conditions, diagnostic threshold, or repair method.

3. What system is affected?

Smart key system; high-frequency receiver module.

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

  • High-frequency receiver module oversupply is the verified DTC meaning.
  • The underlying cause of the oversupply is 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

  • Record the DTC exactly as B229D17 and note any related Smart key behavior.
  • Arrange diagnosis by a qualified BYD service provider if the code remains present.
  • Do not perform high-voltage repairs based on this code.

10. Step-by-step troubleshooting

  1. Use appropriate BYD diagnostic procedures to confirm B229D17 and assess the Smart key system.
  2. Further troubleshooting steps are not yet established by verified evidence.

11. When to contact service

Service requirement is unknown in the supplied evidence. A qualified BYD service provider can diagnose a persistent B229D17 fault.

12. What the service center may check

  • Confirm the presence of DTC B229D17 in the Smart key system.
  • 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

  • Not yet established by verified evidence.

16. Recall information

  • Not yet 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) / B229D17. The supplied evidence lists the meaning as “High-frequency receiver module oversupply.”

19. Frequently asked questions

What does BYD code B229D17 mean?

It means “High-frequency receiver module oversupply” in the Smart key system.

Which vehicles are covered by the verified evidence?

BYD ATTO 3, model years 2022 through 2026, Global applicability.

Is it safe to drive or charge with B229D17?

Not yet established by verified evidence.

20. Sources & verification

Verified
BYD B229D17: High-frequency receiver module oversupply | EV Diagnostics