BYD B225300
Sunroof initialization lost
Quick answer
DTC B225300 means “Sunroof initialization lost” on applicable BYD ATTO 3 vehicles.
This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.
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 B225300 mean?
DTC B225300 means “Sunroof initialization lost” on applicable BYD ATTO 3 vehicles.
2. Technical explanation
Verified diagnostic evidence identifies B225300 as a Sunroof-system DTC with the meaning “Sunroof initialization lost.” The supplied evidence does not establish the specific initialization procedure, triggering conditions, root cause, or repair.
3. What system is affected?
Sunroof
4. How serious is this code?
Unknown. Severity is not yet established by verified evidence.
5. Symptoms you may notice
- Sunroof initialization lost is indicated by DTC B225300. Additional symptoms are 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 with B225300 is not yet established by verified evidence.
8. Can I charge the vehicle?
Unknown. Whether the vehicle can be charged with B225300 is not yet established by verified evidence.
9. What you can safely do
- Record DTC B225300 and any sunroof-related behavior observed.
- Arrange diagnosis using applicable BYD service information if the code remains present.
- Do not attempt high-voltage-system repairs; this DTC is identified in the Sunroof system, and no high-voltage repair procedure is provided by the verified evidence.
10. Step-by-step troubleshooting
- Confirm that the stored code is B225300.
- Check applicable BYD diagnostic information for the required sunroof initialization process. The process itself is not provided in the verified evidence.
- If the code persists, seek diagnosis by a qualified service provider.
11. When to contact service
Contact a qualified BYD service provider if B225300 persists or if sunroof operation is affected. Service urgency is not yet established by verified evidence.
12. What the service center may check
- Verify the presence and status of DTC B225300.
- Use applicable BYD diagnostic information to assess the Sunroof system and initialization status. Further test steps 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
- No technical service bulletins are established by the supplied verified evidence.
16. Recall information
- No recalls are established by the supplied verified evidence.
17. Official manufacturer information
Verified source: OBDTotal technical manual index, “BYD ATTO 3 diagnostic evidence,” locator: ATTO 3 / Yuan Plus (SC2E) / B225300. The source identifies B225300 as “Sunroof initialization lost.” Applicability is verified for BYD ATTO 3 model years 2022–2026, GLOBAL region.
- OBDTotal technical manual index: BYD ATTO 3 diagnostic evidence · technical_manual
19. Frequently asked questions
What does BYD code B225300 mean?
It means “Sunroof initialization lost.”
Which vehicles are supported by the verified evidence?
BYD ATTO 3 vehicles for model years 2022 through 2026 in the GLOBAL region.
Is it safe to drive with B225300?
Not yet established by verified evidence.
How is B225300 repaired?
A repair or initialization procedure is not yet established by verified evidence.