BYD B227C13
Interior front detection antenna open circuit
Quick answer
B227C13 is a BYD Smart key diagnostic trouble code meaning: Interior front detection antenna open circuit. Verified applicability: 2022–2026 BYD ATTO 3 (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 B227C13 mean?
B227C13 is a BYD Smart key diagnostic trouble code meaning: Interior front detection antenna open circuit. Verified applicability: 2022–2026 BYD ATTO 3 (Global).
2. Technical explanation
The verified diagnostic evidence identifies B227C13 as an open-circuit fault for the interior front detection antenna in the Smart key system. The available evidence does not establish the specific failed component, wiring location, diagnostic procedure, or repair method.
3. What system is affected?
Smart key system; interior front detection antenna.
4. How serious is this code?
Unknown. The supplied verified evidence does not assign a severity level.
5. Symptoms you may notice
- Not yet established by verified evidence.
6. Possible causes
- An open-circuit condition involving the interior front detection antenna is indicated by the diagnostic meaning.
- The specific underlying cause is not yet established by verified evidence.
7. Can I still drive the vehicle?
Unknown. The supplied verified evidence does not establish whether the vehicle can be driven with B227C13 present.
8. Can I charge the vehicle?
Unknown. The supplied verified evidence does not establish whether the vehicle can be charged with B227C13 present.
9. What you can safely do
- Arrange diagnosis by a qualified BYD service provider or technician.
- Do not attempt high-voltage system repairs; no high-voltage repair procedure is established by the supplied evidence.
10. Step-by-step troubleshooting
- Have the Smart key system fault code confirmed with suitable diagnostic equipment.
- Further troubleshooting steps are not yet established by verified evidence.
11. When to contact service
Service requirement is unknown in the supplied diagnostic record. A qualified BYD service provider can diagnose the Smart key system and determine the appropriate action.
12. What the service center may check
- Confirm DTC B227C13 in the Smart key system.
- Inspect and test procedures beyond code confirmation are not yet established by verified evidence.
13. Possible repair or resolution
- Not yet established by verified evidence.
14. Affected vehicles
- BYD ATTO 3 · 2022–2026 · GLOBAL
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) / B227C13. Evidence summary: “Interior front detection antenna open circuit.”
- OBDTotal technical manual index: BYD ATTO 3 diagnostic evidence · technical_manual
19. Frequently asked questions
What does BYD code B227C13 mean?
It means “Interior front detection antenna open circuit” in the Smart key system.
Which vehicles are verified as applicable?
BYD ATTO 3 model years 2022 through 2026, Global region.
Can I drive or charge with B227C13?
Not yet established by verified evidence.
What repair fixes B227C13?
Not yet established by verified evidence.