BYD P157F11
AC output short-circuited
Quick answer
For applicable BYD ATTO 3 (2022–2026) and BYD SEAL (2022–2026) vehicles globally, DTC P157F11 is identified as “AC output short-circuited” / “AC output terminal short circuit.”
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 P157F11 mean?
For applicable BYD ATTO 3 (2022–2026) and BYD SEAL (2022–2026) vehicles globally, DTC P157F11 is identified as “AC output short-circuited” / “AC output terminal short circuit.”
2. Technical explanation
P157F11 is an OBC-system diagnostic trouble code. The supplied technical-manual evidence identifies the fault as an AC output short circuit. The evidence does not further establish the exact circuit path, triggering conditions, root cause, or repair procedure.
3. What system is affected?
OBC (on-board charger), specifically an AC output/AC output terminal circuit according to the supplied evidence.
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
- An AC output short circuit is identified by the diagnostic definition.
- The underlying cause of the short circuit is not yet established by verified evidence.
7. Can I still drive the vehicle?
Unknown. Whether the vehicle can be driven with P157F11 is not yet established by verified evidence.
8. Can I charge the vehicle?
Unknown. Whether charging can continue with P157F11 is not yet established by verified evidence.
9. What you can safely do
- Do not attempt high-voltage or OBC repair work.
- Have the vehicle assessed by qualified BYD service personnel; the need for service is not otherwise established by the supplied evidence.
10. Step-by-step troubleshooting
- Confirm the stored DTC with appropriate diagnostic equipment.
- Further diagnostic steps are not yet established by verified evidence.
11. When to contact service
Contact qualified BYD service personnel for diagnosis. The supplied evidence does not provide a specific repair process or urgency classification.
12. What the service center may check
- Verify DTC P157F11.
- Diagnose the OBC AC output/AC output terminal circuit. Detailed inspection 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
- BYD SEAL · 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 evidence is from an OBDTotal technical manual index for BYD ATTO 3 / Yuan Plus (SC2E), locator “P157F11,” and an indexed BYD SEAL European technical-training document. Both identify P157F11 as an AC output short-circuit fault. No official BYD recall, bulletin, or repair instruction was supplied.
- OBDTotal technical manual index: BYD ATTO 3 diagnostic evidence · technical_manual
- Indexed technical document: BYD SEAL diagnostic evidence · technical_manual
19. Frequently asked questions
What does BYD code P157F11 mean?
For the verified BYD applications, P157F11 means “AC output short-circuited.” The SEAL technical-training evidence describes it as “AC output terminal short circuit.”
Which vehicles are covered by the supplied evidence?
BYD ATTO 3, model years 2022–2026, global region; and BYD SEAL, model years 2022–2026, global region.
Is it safe to drive or charge with P157F11?
Not yet established by verified evidence.
What repair fixes P157F11?
Not yet established by verified evidence. The supplied sources provide the DTC definition but no verified repair procedure.