Verified EV diagnostic knowledge page

Nissan P1B68

12; all for “Cell voltage circuit”. ACTION Follow the SERVICE PROCEDURE in this bulletin to re program the HV BATTERY and HIGH VOLTAGE BATT

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact a Nissan dealer or qualified EV service facility for diagnosis and to determine whether NTB23-075A applies to the vehicle.
Confidence95%

Quick answer

For a 2023 Nissan ARIYA in the US, DTC P1B68-12 is included in Nissan bulletin NTB23-075A under “Cell voltage circuit.” The bulletin directs technicians to reprogram the HV BATTERY and HIGH VOLTAGE BATTERY systems following its service procedure.

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 P1B68 mean?

For a 2023 Nissan ARIYA in the US, DTC P1B68-12 is included in Nissan bulletin NTB23-075A under “Cell voltage circuit.” The bulletin directs technicians to reprogram the HV BATTERY and HIGH VOLTAGE BATTERY systems following its service procedure.

2. Technical explanation

Verified NHTSA manufacturer-communication evidence lists P1B68-12 among the cell-voltage-circuit DTCs covered by Nissan bulletin NTB23-075A. The supplied evidence does not establish a more specific component-level failure description for P1B68 by itself.

3. What system is affected?

High-voltage battery / high-voltage battery system; the bulletin groups P1B68-12 under “Cell voltage circuit.”

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

Not yet established by verified evidence.

6. Possible causes

  • The verified evidence identifies P1B68-12 as a “Cell voltage circuit” DTC category in Nissan bulletin NTB23-075A.
  • A specific underlying cause is not yet established by verified evidence.

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

  • Arrange diagnosis by a Nissan dealer or qualified EV service facility.
  • Provide the stored DTC P1B68-12 and reference Nissan bulletin NTB23-075A.
  • Do not attempt high-voltage battery repair or programming yourself.

10. Step-by-step troubleshooting

  1. A service technician should follow the SERVICE PROCEDURE in Nissan bulletin NTB23-075A.
  2. The verified bulletin evidence directs reprogramming of the HV BATTERY and HIGH VOLTAGE BATTERY systems.

11. When to contact service

Contact a Nissan dealer or qualified EV service facility for diagnosis and to determine whether NTB23-075A applies to the vehicle.

12. What the service center may check

  • Confirm the vehicle is a 2023 Nissan ARIYA for the US market.
  • Confirm whether P1B68-12 is present.
  • Follow Nissan bulletin NTB23-075A service procedure, including the directed HV BATTERY and HIGH VOLTAGE BATTERY reprogramming.

13. Possible repair or resolution

  • Nissan bulletin NTB23-075A directs technicians to reprogram the HV BATTERY and HIGH VOLTAGE BATTERY systems following the bulletin's service procedure.
  • Whether reprogramming resolves a particular vehicle's condition is not yet established by the supplied verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NTB23-075, NHTSA Manufacturer Communication 10246439, published November 15, 2023.
  • NTB23-075A, NHTSA Manufacturer Communication PDF 11002534, published April 23, 2024. This bulletin includes P1B68-12 among “Cell voltage circuit” DTCs and directs the service procedure for HV BATTERY and HIGH VOLTAGE BATTERY reprogramming.

16. Recall information

No recall relationship is established by verified evidence.

17. Official manufacturer information

Official NHTSA-hosted Nissan communication: NTB23-075A, https://static.nhtsa.gov/odi/tsbs/2024/MC-11002534-0001.pdf

19. Frequently asked questions

What does P1B68-12 refer to in the supplied Nissan evidence?

It is listed under “Cell voltage circuit” in Nissan bulletin NTB23-075A.

Which vehicle is covered by the supplied applicability evidence?

2023 Nissan ARIYA, US market.

What action does the Nissan bulletin direct?

It directs technicians to follow the bulletin's service procedure to reprogram the HV BATTERY and HIGH VOLTAGE BATTERY systems.

Is it safe to drive or charge with P1B68-12?

Not yet established by verified evidence.

20. Sources & verification

Verified
Nissan P1B68: 12; all for “Cell voltage circuit”. ACTION Follow the… | EV Diagnostics