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BYD P157017

AC-side voltage high

DriveUnknown. Whether the vehicle can be driven with P157017 is not established by verified evidence.
ChargeUnknown. Whether AC charging can continue with P157017 is not established by verified evidence.
ServiceService requirement is unknown in the supplied evidence. Professional EV-capable diagnosis is appropriate because this code concerns the OBC/AC charging system.
Confidence95%

Quick answer

BYD DTC P157017 means “AC-side voltage high” in the OBC/AC charging system.

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 P157017 mean?

BYD DTC P157017 means “AC-side voltage high” in the OBC/AC charging system.

2. Technical explanation

Verified evidence identifies P157017 as an OBC/AC charging diagnostic trouble code for high voltage on the AC side. The supplied evidence does not establish the triggering conditions, threshold values, component-level cause, charging behavior, or repair procedure.

3. What system is affected?

OBC/AC charging.

4. How serious is this code?

Unknown. Severity is not established by verified evidence.

5. Symptoms you may notice

  • Not yet established by verified evidence.

6. Possible causes

  • An AC-side voltage-high condition is indicated by the code meaning.
  • Specific underlying causes are not yet established by verified evidence.

7. Can I still drive the vehicle?

Unknown. Whether the vehicle can be driven with P157017 is not established by verified evidence.

8. Can I charge the vehicle?

Unknown. Whether AC charging can continue with P157017 is not established by verified evidence.

9. What you can safely do

  • Avoid attempting high-voltage or onboard-charger repairs yourself.
  • Record the DTC and arrange professional diagnosis if the code is present.

10. Step-by-step troubleshooting

  1. The supplied verified evidence does not provide a diagnostic test sequence, measurements, or reset procedure.

11. When to contact service

Service requirement is unknown in the supplied evidence. Professional EV-capable diagnosis is appropriate because this code concerns the OBC/AC charging system.

12. What the service center may check

  • 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

  • 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 technical-manual evidence from the OBDTotal technical manual index for BYD ATTO 3 / Yuan Plus (SC2E) and an indexed BYD SEAL European technical-training document identify P157017 as “AC-side voltage high.”

19. Frequently asked questions

What does BYD code P157017 mean?

It means “AC-side voltage high” in the OBC/AC charging system.

Which vehicles are supported by the supplied evidence?

BYD ATTO 3, model years 2022–2026, Global region; and BYD SEAL, model years 2022–2026, Global region.

Can I drive with P157017?

Not yet established by verified evidence.

Can I AC charge with P157017?

Not yet established by verified evidence.

20. Sources & verification

Verified
BYD P157017: AC-side voltage high | EV Diagnostics