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BYD P157A36

Charging grid frequency low

DriveUnknown. Safe-to-drive status is not established by verified evidence.
ChargeUnknown. Safe-to-charge status is not established by verified evidence.
ServiceService requirement is unknown. Contact a qualified BYD service provider for diagnosis if the DTC is present or charging concerns occur.
Confidence95%

Quick answer

BYD DTC P157A36 means “Charging grid frequency low.” Verified applicability: BYD ATTO 3, model years 2022–2026, Global market.

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 P157A36 mean?

BYD DTC P157A36 means “Charging grid frequency low.” Verified applicability: BYD ATTO 3, model years 2022–2026, Global market.

2. Technical explanation

P157A36 is a DTC in the OBC system. The verified diagnostic meaning is “Charging grid frequency low.” The supplied evidence does not establish a frequency threshold, detection conditions, root cause, charging impact, or repair procedure.

3. What system is affected?

OBC (on-board charger).

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

  • Not yet established by verified evidence.

7. Can I still drive the vehicle?

Unknown. Safe-to-drive status is not established by verified evidence.

8. Can I charge the vehicle?

Unknown. Safe-to-charge status is not established by verified evidence.

9. What you can safely do

  • Do not attempt high-voltage diagnosis or repair based on this code.
  • Record the DTC and the charging circumstances in which it occurred.
  • Use a qualified BYD service provider for diagnosis if assistance is needed.

10. Step-by-step troubleshooting

  1. The verified evidence confirms only the code meaning and its OBC-system association. Further troubleshooting steps are not yet established by verified evidence.

11. When to contact service

Service requirement is unknown. Contact a qualified BYD service provider for diagnosis if the DTC is present or charging concerns occur.

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 were supplied in the verified evidence.

16. Recall information

  • No recalls were supplied in the verified evidence.

17. Official manufacturer information

Verified source: OBDTotal technical manual index, “BYD ATTO 3 diagnostic evidence,” locator: ATTO 3 / Yuan Plus (SC2E) / P157A36. https://obdtotal.com/product/byd-atto3-yuanplus-sc2e-service-manual/

19. Frequently asked questions

What does BYD P157A36 mean?

It means “Charging grid frequency low.”

Which system is associated with P157A36?

The OBC (on-board charger) system.

Which vehicles are verified as applicable?

BYD ATTO 3, model years 2022 through 2026, Global market.

Can the vehicle be driven with P157A36?

Safe-to-drive status is not established by verified evidence.

Can the vehicle be charged with P157A36?

Safe-to-charge status is not established by verified evidence.

20. Sources & verification

Verified
BYD P157A36: Charging grid frequency low | EV Diagnostics