2020-2022 Nissan B2E01-96 Internal Battery DTC in TCU
Nissan TSB NTB22-027 details how to clear DTC B2E01-96, indicating an internal battery issue in the Telematics Control Unit (TCU), for various 2020-2022 Nissan models. The bulletin outlines a specific diagnostic and repair procedure using CONSULT-III.
Si applica anche a
- Nissan Armada
- 2021–2022
- Nissan Frontier
- 2022
- Nissan Kicks
- 2021–2022
- Nissan Maxima
- 2021–2022
- Nissan Pathfinder
- 2022
- Nissan Rogue
- 2021–2022
- Nissan Sentra
- 2022
- Nissan Titan
- 2021–2022
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Nissan Technical Service Bulletin NTB22-027 addresses a specific diagnostic trouble code (DTC) B2E01-96, which signals an internal battery issue within the Intelligent Vehicle Communication (IVC) system's Telematics Control Unit (TCU). This bulletin provides a detailed service procedure for qualified technicians to clear this DTC using the CONSULT-III diagnostic tool. This ensures proper functionality and prevents the 2020-2022 Nissan B2E01-96 internal battery fault from persisting.
This issue affects a range of 2020-2022 Nissan vehicles, including the Armada, Rogue, Pathfinder, Sentra, Kicks, Titan, Maxima, and Frontier. The TSB ensures that technicians can accurately diagnose and resolve the 2020-2022 Nissan B2E01-96 internal battery fault.
Symptoms
Owners of affected 2020-2022 Nissan vehicles may not notice any overt symptoms beyond the presence of the DTC itself. The primary symptom is the diagnostic trouble code B2E01-96 being stored as Current/Active within the Telematics Control Unit (TCU) when scanned with a diagnostic tool.
Fault Codes / DTCs
The following diagnostic trouble code is addressed by this bulletin:
| Code | Description |
|---|---|
| B2E01-96 | Internal battery |
This code specifically points to an issue with the internal battery of the Telematics Control Unit (TCU).
Important Warnings for Technicians and Owners
Nissan emphasizes that these bulletins are intended for use by qualified technicians, not for 'do-it-yourselfers'. Attempting this procedure without proper training and equipment may damage vehicle components. Technicians must observe several critical precautions during the repair process:
- Battery Voltage: A battery maintainer or smart charger set to reflash mode must be connected. If the vehicle battery voltage drops below 12.0V or rises above 15.5V during reprogramming, the TCU may be damaged.
- Electrical Loads: All vehicle electrical loads must be turned OFF. If a vehicle electrical load remains ON, the TCU may be damaged.
- CONSULT PC Power: The CONSULT PC must be connected to an AC Adapter. If the CONSULT PC battery voltage drops during reprogramming, the process will be interrupted, and the TCU may be damaged.
- Bluetooth Devices: All external Bluetooth® devices (e.g., cell phones, printers) within range of the CONSULT PC and the Vehicle Interface (VI) must be turned OFF. Bluetooth® signal waves can interrupt reprogramming and damage the TCU.
Diagnosis and Repair Procedure Summary
The service procedure detailed in TSB NTB22-027 involves using the CONSULT-III diagnostic tool to clear the B2E01-96 DTC. The process requires careful adherence to steps to ensure the Telematics Control Unit (TCU) is not damaged.
- Preparation: Ensure the ASIST system on the CONSULT PC is synchronized, and all CONSULT-III software updates are installed. Connect a battery maintainer/smart charger to the vehicle and turn the ignition ON. Connect the Vehicle Interface (VI) to the vehicle.
- CONSULT-III Setup: Start CONSULT-III and wait for the VI to be recognized (as shown in Figure 1). Select
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Frequently Asked Questions
- What does the 2020-2022 Nissan B2E01-96 internal battery DTC indicate?
- The B2E01-96 DTC indicates an internal battery problem within your vehicle's Telematics Control Unit (TCU), which is part of the Intelligent Vehicle Communication (IVC) system.
- Which Nissan models are affected by TSB NTB22-027 for the B2E01-96 fault?
- TSB NTB22-027 applies to various 2020-2022 Nissan models, including the Armada, Rogue, Pathfinder, Sentra, Kicks, Titan, Maxima, and Frontier.
- How is the 2020-2022 Nissan B2E01-96 internal battery fault resolved?
- The fault is resolved by a Nissan technician using the CONSULT-III diagnostic tool to perform a 'TCU Backup Battery Reset' procedure. This process involves specific steps to ensure the TCU is properly updated and the DTC is cleared.
- Can I clear the 2020-2022 Nissan B2E01-96 internal battery DTC myself?
- No, Nissan explicitly states that these bulletins are for qualified technicians. The procedure requires specialized diagnostic equipment (CONSULT-III) and specific steps to prevent damage to the TCU. It is recommended to visit your Nissan dealer for this repair.
- What are the claims codes for this repair?
- For claims, the Primary Failed Part (PFP) is the Telematics Control Unit (part number 28275-*****). The operation code is RXA9AA, the symptom code is ZE, the diagnosis code is 32, and the labor time is 0.4 hours.
What Nissan Sentra owners report
Counted from the records in our database across 45 model years.
- 5,975
- Owner complaints
- 62
- Recalls
- 710
- Service bulletins
- 600
- Crashes reported
- 123
- Fires reported
- 523
- Injuries reported
The 2021 model year
133 complaints, the 21st most of 45 model years on file. Owners reported 15 crashes, 1 fire and 9 injuries for this year, which also has 3 recalls on file.
Communication and Electrical System and Engine and Equipment Adaptive/Mobility, the system this article covers, accounts for 1,390 of 5,975 complaints (23%), including 43 for 2021.
Complaints by model year
| 2001 | 236 | |
|---|---|---|
| 2002 | 318 | |
| 2013 | 638 | |
| 2014 | 380 | |
| 2015 | 352 | |
| 2016 | 270 | |
| 2017 | 231 | |
| 2019 | 223 | |
| 2020 | 207 | |
| 2021 | 133 |
Most-reported systems
- Power Train — 1,287
- Electrical System — 839
- Air Bags — 779
- Engine — 679
- Engine And Engine Cooling — 650
Latest recalls for the 2021 model year
- 23V628000 — Back Over Prevention (Sep 2023)
- 23V581000 — Steering (Aug 2023)
- 21V461000 — Steering (Jun 2021)
Recent owner reports about communication and electrical system and engine and equipment adaptive/mobility
The infotainment/radio system in my 2021 Nissan Sentra intermittently reboots and produces static. When this happens, the backup camera freezes or shuts off completely.
Read owner complaints →The passenger front, and both back windows no longer function. This appears to be a common issue when searching the internet. There is also an issue with the keyless start, as it often does not recognize that the fob is in the vehicle, or gives a low batter…
Complaints are owner reports filed with NHTSA. They are unverified, and counts depend on how many vehicles were sold, so they are not a failure rate.
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