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.

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.

Service Bulletin

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.

David Chen2021 Nissan SentraApril 25, 2026

2021 NISSAN Sentra — manufacturer_communication document image 1 — Source: NHTSA manufacturer_communication 10213685

2020-2022 Nissan B2E01-96 internal batteryNTB22-027B2E01-96 DTCTelematics Control Unit (TCU)TCU internal battery faultCONSULT-III diagnostic toolNissan Armada B2E01-96Nissan Rogue B2E01-96Nissan Pathfinder B2E01-96Nissan Sentra B2E01-96

Nissan Armada: 2021–2022
Nissan Frontier: 2022
Nissan Kicks: 2021–2022
Nissan Maxima: 2021–2022
Nissan Pathfinder: 2022
Nissan Rogue: 2021–2022

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

Gallery

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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.

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