BYD P157016
AC-side voltage low
Quick answer
For BYD vehicles, DTC P157016 means “AC-side voltage low” in the OBC/AC charging system. Verified applicability includes the 2022–2026 BYD ATTO 3 and 2022–2026 BYD SEAL, Global market coverage.
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 P157016 mean?
For BYD vehicles, DTC P157016 means “AC-side voltage low” in the OBC/AC charging system. Verified applicability includes the 2022–2026 BYD ATTO 3 and 2022–2026 BYD SEAL, Global market coverage.
2. Technical explanation
The verified diagnostic meaning for P157016 is that low voltage has been identified on the AC side of the onboard-charging (OBC/AC charging) system. The supplied evidence does not establish the specific operating conditions, voltage threshold, root cause, charging behavior, or repair procedure.
3. What system is affected?
OBC/AC charging system.
4. How serious is this code?
Unknown. Severity is not yet established by verified evidence.
5. Symptoms you may notice
Not yet established by verified evidence.
6. Possible causes
Not yet established by verified evidence. A diagnostic identifier alone is not proof that a specific component has failed.
7. Can I still drive the vehicle?
Unknown. Whether the vehicle can be driven is not yet established by verified evidence.
8. Can I charge the vehicle?
Unknown. Whether AC charging can continue is not yet established by verified evidence.
9. What you can safely do
- Use only normal charging equipment and procedures specified for the vehicle.
- Do not attempt high-voltage or onboard-charger repair work.
- Arrange professional diagnosis if the DTC is present.
10. Step-by-step troubleshooting
- Confirm the stored DTC with suitable diagnostic equipment.
- Have a qualified BYD service provider diagnose the AC-side voltage-low condition.
- Specific test steps, voltage values, component checks, and root-cause isolation are not yet established by verified evidence.
11. When to contact service
Professional diagnosis is appropriate because P157016 concerns the OBC/AC charging system. The supplied evidence does not establish urgency or whether service is mandatory.
12. What the service center may check
- Read and document P157016 using appropriate diagnostic equipment.
- Further service checks are not yet established by verified evidence.
13. Possible repair or resolution
- Repair resolution is 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
- No technical service bulletin applicability is established by the supplied verified evidence.
16. Recall information
- No recall applicability is established by the supplied verified evidence.
17. Official manufacturer information
Verified technical-manual-index evidence identifies P157016 as “AC-side voltage low” for the BYD ATTO 3 / Yuan Plus (SC2E). An indexed BYD SEAL European technical-training document also identifies P157016 as “AC-side voltage low.”
- 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 P157016 mean?
It means “AC-side voltage low” in the OBC/AC charging system.
Which BYD vehicles are verified as applicable?
The supplied evidence supports Global-market BYD ATTO 3 model years 2022–2026 and BYD SEAL model years 2022–2026.
Can I drive with P157016?
Not yet established by verified evidence.
Can I AC charge with P157016?
Not yet established by verified evidence.
What causes P157016?
Not yet established by verified evidence.