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BYD P15794B

Temperature sampling 1 high

DriveUnknown. Whether the vehicle can be driven has not yet been established by verified evidence.
ChargeUnknown. Whether the vehicle can be charged has not yet been established by verified evidence.
ServiceService requirement is unknown in the supplied evidence. If P15794B is present or returns, contact a qualified BYD service provider for diagnosis.
Confidence95%

Quick answer

BYD DTC P15794B means “Temperature sampling 1 high” in the OBC system. 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 P15794B mean?

BYD DTC P15794B means “Temperature sampling 1 high” in the OBC system. Verified applicability: BYD ATTO 3 model years 2022–2026, Global market.

2. Technical explanation

The verified diagnostic description for P15794B is “Temperature sampling 1 high.” The supplied evidence identifies the affected system as OBC. It does not further define the monitored component, threshold, operating conditions, fault logic, or root cause.

3. What system is affected?

OBC (on-board charger).

4. How serious is this code?

Unknown. Severity has not yet been 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. Whether the vehicle can be driven has not yet been established by verified evidence.

8. Can I charge the vehicle?

Unknown. Whether the vehicle can be charged has not yet been established by verified evidence.

9. What you can safely do

  • Do not attempt high-voltage diagnosis or repair.
  • Record the displayed DTC and arrange professional diagnosis if the code remains present.

10. Step-by-step troubleshooting

  1. A qualified service provider should retrieve and evaluate P15794B using appropriate BYD diagnostic information. Specific test steps are not established by the supplied verified evidence.

11. When to contact service

Service requirement is unknown in the supplied evidence. If P15794B is present or returns, contact a qualified BYD service provider for diagnosis.

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

  • Not yet established by verified evidence.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified source: OBDTotal technical manual index, “BYD ATTO 3 diagnostic evidence,” locator: ATTO 3 / Yuan Plus (SC2E) / P15794B. https://obdtotal.com/product/byd-atto3-yuanplus-sc2e-service-manual/

19. Frequently asked questions

What does BYD code P15794B mean?

It means “Temperature sampling 1 high” in the OBC system.

Which vehicles are covered by the verified evidence?

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

Can I drive or charge with P15794B?

Driveability and charging safety are not yet established by verified evidence.

20. Sources & verification

Verified
BYD P15794B: Temperature sampling 1 high | EV Diagnostics