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Nissan B2E4B

06  B2E60-06  B2E61-06 HINT: These DTCs are caused by an issue with a cloud-server that is related to the TCU. ACTION 1. Do NOT replace t

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact a Nissan dealer or qualified Nissan service facility if B2E4B-06 is current in the TCU or NissanConnect remote commands are affected. Provide the code and reference NTB21-037D.
Confidence95%

Quick answer

For applicable U.S. Nissan ARIYA vehicles, DTC B2E4B-06 is addressed in Nissan bulletin NTB21-037D together with B2E60-06 and B2E61-06. Nissan states these DTCs are caused by a cloud-server issue related to the Telematics Control Unit (TCU) and instructs technicians not to replace the TCU for this condition.

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 B2E4B mean?

For applicable U.S. Nissan ARIYA vehicles, DTC B2E4B-06 is addressed in Nissan bulletin NTB21-037D together with B2E60-06 and B2E61-06. Nissan states these DTCs are caused by a cloud-server issue related to the Telematics Control Unit (TCU) and instructs technicians not to replace the TCU for this condition.

2. Technical explanation

The verified Nissan/NHTSA bulletin evidence identifies B2E4B-06 as a current (CRNT) TCU-related DTC in the same group as B2E60-06 and B2E61-06. Nissan’s stated hint is that the DTCs result from a cloud-server issue related to the TCU. The supplied evidence does not establish a vehicle-side TCU hardware failure.

3. What system is affected?

Telematics Control Unit (TCU) and NissanConnect service remote-command functionality, as described by NTB21-037D.

4. How serious is this code?

Not yet established by verified evidence. The supplied bulletin identifies a cloud-server/TCU-related condition but does not provide a safety severity classification.

5. Symptoms you may notice

  • B2E4B-06 displayed as current (CRNT) in the TCU.
  • The bulletin evidence references NissanConnect Service remote commands in connection with this DTC group.

6. Possible causes

  • A cloud-server issue related to the TCU, according to Nissan bulletin NTB21-037D.

7. Can I still drive the vehicle?

Not yet established by verified evidence.

8. Can I charge the vehicle?

Not yet established by verified evidence.

9. What you can safely do

  • Record the exact DTC status and any NissanConnect remote-command concern.
  • Use the official Nissan bulletin information when arranging diagnosis.
  • Do not authorize TCU replacement solely for this DTC group based on the supplied bulletin evidence.

10. Step-by-step troubleshooting

  1. Confirm whether B2E4B-06 is displayed as current (CRNT) in the TCU.
  2. Check whether B2E60-06 and/or B2E61-06 are also displayed as current in the TCU.
  3. Confirm whether the vehicle has a NissanConnect Service remote-command concern, as referenced in NTB21-037D.
  4. Refer to Nissan bulletin NTB21-037D for the applicable service procedure.

11. When to contact service

Contact a Nissan dealer or qualified Nissan service facility if B2E4B-06 is current in the TCU or NissanConnect remote commands are affected. Provide the code and reference NTB21-037D.

12. What the service center may check

  • Verify B2E4B-06 status in the TCU.
  • Check for B2E60-06 and B2E61-06 as current TCU DTCs.
  • Evaluate the reported NissanConnect Service remote-command condition in accordance with NTB21-037D.
  • Follow the bulletin procedure rather than replacing the TCU for the cloud-server-related condition described by Nissan.

13. Possible repair or resolution

  • Nissan’s verified instruction is: do not replace the TCU for the cloud-server-related DTC condition described in NTB21-037D.
  • The specific corrective procedure beyond that instruction is not included in the supplied evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NTB21-037D, published August 15, 2024: Addresses B2E4B-06, B2E60-06, and B2E61-06 displayed as current in the TCU in connection with NissanConnect Service remote commands. Nissan states the DTCs are caused by a cloud-server issue related to the TCU and instructs technicians not to replace the TCU.
  • NTB21-037C, published July 31, 2023: Earlier amended bulletin addressing B2E4B-06, B2E60-06, and B2E61-06 displayed as current in the TCU.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Official NHTSA-hosted Nissan manufacturer communication: NTB21-037D (NHTSA communication 11006972), https://static.nhtsa.gov/odi/ffdd/tsbs/TSBS_RECEIVED_2020-2024.zip#nhtsa_id=11006972

19. Frequently asked questions

What does Nissan identify as the cause of B2E4B-06?

Nissan states that B2E4B-06, B2E60-06, and B2E61-06 are caused by a cloud-server issue related to the TCU.

Should the TCU be replaced for B2E4B-06?

No. Nissan bulletin NTB21-037D instructs technicians not to replace the TCU for the cloud-server-related condition described.

Which vehicles are established as applicable?

The supplied applicability evidence identifies U.S. Nissan ARIYA vehicles for model years 2023 through 2024. The precise bulletin eligibility criteria are not fully established by the supplied evidence.

Is it safe to drive or charge with B2E4B-06?

Not yet established by verified evidence.

20. Sources & verification

Verified
Nissan B2E4B: 06  B2E60-06  B2E61-06 HINT: These DTCs are caused by… | EV Diagnostics