Verified EV diagnostic knowledge page

BYD B2E8D00

Security chip abnormal function

DriveUnknown. The verified evidence does not establish whether the vehicle is safe to drive with B2E8D00 present.
ChargeUnknown. The verified evidence does not establish whether the vehicle is safe to charge with B2E8D00 present.
ServiceService need is unknown in the supplied diagnostic record. If the code remains present or infotainment operation is affected, seek assessment from a qualified BYD service provider.
Confidence95%

Quick answer

For the 2024 BYD SEALION 7, DTC B2E8D00 is identified as “Security chip abnormal function” in the Infotainment system.

This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.

Video guides

Watch Videos

Relevant videos play here without leaving this diagnostic page.

No sufficiently relevant embeddable video has been accepted for this diagnostic yet.

Videos are supporting material and never override OEM or regulator evidence.

1. What does B2E8D00 mean?

For the 2024 BYD SEALION 7, DTC B2E8D00 is identified as “Security chip abnormal function” in the Infotainment system.

2. Technical explanation

Verified evidence identifies B2E8D00 as an Infotainment-system diagnostic trouble code for a security chip abnormal function. The supplied evidence does not further define the monitored component, detection conditions, diagnostic thresholds, or fault logic.

3. What system is affected?

Infotainment.

4. How serious is this code?

Unknown. The verified evidence does not assign a severity level.

5. Symptoms you may notice

  • Not yet established by verified evidence.

6. Possible causes

  • A security chip abnormal function is identified by the DTC description.
  • Specific underlying causes are not yet established by verified evidence.

7. Can I still drive the vehicle?

Unknown. The verified evidence does not establish whether the vehicle is safe to drive with B2E8D00 present.

8. Can I charge the vehicle?

Unknown. The verified evidence does not establish whether the vehicle is safe to charge with B2E8D00 present.

9. What you can safely do

  • Record the exact DTC: B2E8D00.
  • Arrange diagnosis using applicable BYD service information or a qualified BYD service provider.
  • Do not attempt high-voltage system repairs; no high-voltage repair procedure is established by the supplied evidence.

10. Step-by-step troubleshooting

  1. No verified step-by-step troubleshooting procedure is supplied for B2E8D00.
  2. A qualified technician can confirm the code and diagnose the Infotainment-system fault using applicable manufacturer information.

11. When to contact service

Service need is unknown in the supplied diagnostic record. If the code remains present or infotainment operation is affected, seek assessment from a qualified BYD service provider.

12. What the service center may check

  • Confirm whether B2E8D00 is present in the Infotainment system.
  • Further required checks are not yet established by verified evidence.

13. Possible repair or resolution

  • A verified repair or resolution for B2E8D00 is not yet established by the supplied evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • No technical service bulletin information was supplied for this DTC.

16. Recall information

  • No recall information was supplied for this DTC.

17. Official manufacturer information

Verified source: 17VIN technical manual index, “BYD SEALION 7 diagnostic evidence,” locator: “SEALION 7 | Sealion 07 EV / 2024 | B2E8D00.” The evidence identifies the code as “Security chip abnormal function.” Applicability supplied: 2024 BYD SEALION 7, GLOBAL.

19. Frequently asked questions

What does BYD code B2E8D00 mean?

For the 2024 BYD SEALION 7, verified evidence defines B2E8D00 as “Security chip abnormal function” in the Infotainment system.

Can I drive with B2E8D00?

Not yet established by verified evidence.

Can I charge with B2E8D00?

Not yet established by verified evidence.

What repair fixes B2E8D00?

A verified repair procedure or resolution is not supplied in the available evidence.

20. Sources & verification

Verified
BYD B2E8D00: Security chip abnormal function | EV Diagnostics