# Service bulletin REVISION 2 PM991

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10219013
- Published by NHTSA: 2022\-08\-31
- Manufacturer's number: REVISION 2 PM991
- Manufacturer's date: 2022\-08\-25
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Audio Control Unit Reprogram Voluntary Service Campaign UPDATE August 25, 2022 Please discard earlier versions of this bulletin. The announcement from August 10, 2021 has been revised to include the following: • NTB21\-066 has been amended with the following changes: • Battery replacement will no longer be covered under this activity. The battery inspection and replacement operation has been removed from this campaign. Op codes PM9914 and PM9913 no longer apply for this activity. • USB drive information has been updated.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10219013-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10219013-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Vehicles listed

- 2021 NISSAN SENTRA

## Other bulletins for the same vehicles and component

- [NTB19\-042F](/bulletins/11014472.md), 2025-02-25, Service bulletin: FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING; ELECTRICAL SYSTEM; SERVICE BRAKES. AUTOMATIC EMERGENCY BRAKING WARNING LIGHT BLINKING APPLIED SYSTEMS: Vehicles equipped with a lane camera \(see Figure 1\) SERVICE INFORMATION If the Automatic Emergency Braking \(AEB\) warning light or is blinking \(but not illuminated steadily\) or the customer states it is blinking, and there are no related DTCs, inspect the windshield. A blinking AEB warning light may occur under the following conditions: • When contamination or foreign material adhere to the lane camera viewing window on the windshield. • When driving while it is snowing or when frost forms on the lane camera viewing window on the windshield. • When the lane camera viewing window on the windshield is temporarily fogged up. Figure 1 Nissan Bulletins are intended for use by qualified technicians, not 'do\-it\-yourselfers'. Qualified technicians are properly trained individuals who have the equipment, tools, safety instruction, and know\-how to do a job properly and safely. NOTE: If you believe that a described condition may apply to a particular vehicle, DO NOT assume that it does. See your Nissan dealer to determine if this applies to your vehicle. HINT: o Refer to the applicable ESM for diagnosis if DTCs are present in the Laser/Radar, ICC/ADAS, or Lane Camera systems. o For further information: • Refer to the following pages. • Use the search keyword “blinking” in the ESM.
- [NTB19\-033G](/bulletins/11014471.md), 2025-02-25, Service bulletin: SERVICE BRAKES; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING; ELECTRICAL SYSTEM. INTELLIGENT CRUISE CONTROL INOPERATIVE AND AEB/FEB WARNING LIGHT ON OR RADAR OBSTRUCTION MESSAGE DISPLAYED WITH DTC C1A16 OR C2582 IF YOU CONFIRM IMPORTANT: The purpose of ACTION \(on the next page\) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair. Nissan Bulletins are intended for use by qualified technicians, not 'do\-it\-yourselfers'. Qualified technicians are properly trained individuals who have the equipment, tools, safety instruction, and know\-how to do a job properly and safely. NOTE: If you believe that a described condition may apply to a particular vehicle, DO NOT assume that it does. See your Nissan dealer to determine if this applies to your vehicle. The customer states that the ICC stopped working while driving, OR The customer states that the AEB/FEB warning light is ON, or turned ON, while driving \(Figure 1\), OR The message “Unavailable Front Radar Obstruction” or “Forward Driving Aids Temporarily Disabled Front Sensor Blocked See Owner's Manual” has displayed while driving \(Figure 2\). AND DTC C1A16, C1A16\-97, C2582, or C2582\-97 is the ONLY DTC stored. Figure 1 Figure 2 This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin. Forward Driving Aids Temporarily Disabled Front Sensor Blocked See Owner’s Manual
- [NTB21\-115B](/bulletins/11006996.md), 2024-09-04, Service bulletin: ELECTRICAL SYSTEM. FALSE ACTIVATION OF AEB OR FCW APPLIED VEHICLES: 2021\-2022 Altima \(L34\) 2022\-2023 Frontier \(D41\) 2020\-2022 Sentra \(B18\) APPLIED DATES: Altima: All Frontier: All Sentra: Built on or before March 10, 2022 APPLIED SYSTEMS: Automatic Emergency Braking/Forward Collision Warning IF YOU CONFIRM The customer states they have experienced false activation and/or unexpected braking of the Automatic Emergency Braking \(AEB\) or Forward Collision Warning \(FCW\) system, AND There are no related DTCs stored. ACTION 1. Confirm the current ICC/ADAS 2 part number. 2. Reprogram the ICC/ADAS 2, if applicable. IMPORTANT: The purpose of ACTION \(above\) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair.
- [NTB22\-027B](/bulletins/11006973.md), 2024-09-04, Service bulletin: ELECTRICAL SYSTEM. DTC B2E01\-96 \(INTERNAL BATTERY\) STORED AS CURRENT IN IVC This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin. SERVICE INFORMATION The APPLIED VEHICLES that come equipped with a factory installed SOS switch, located near the overhead map lamp, also come equipped with a wireless communication device called a Telematics Communication Unit \(TCU\). With an active NissanConnect® Services subscription, the TCU communicates with the Nissan Data Center to provide various security and convenience services. CONSULT has been updated to allow DTC B2E01\-96 for “Internal battery” to be cleared in the TCU. If DTC B2E01\-96 is Current/Active in the TCU, and no additional Current/Active DTCs are present in the TCU, perform the SERVICE PROCEDURE starting on page 2.
- [NTB21\-037D](/bulletins/11006972.md), 2024-09-04, Service bulletin: ELECTRICAL SYSTEM. DTCS B2E4B\-06, B2E60\-06, B2E61\-06 DISPLAYED AS CRNT IN THE TCU This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin. IF YOU CONFIRM The customer experiences an issue with the NissanConnect® Service remote commands, AND Any of the following DTCs are displayed as CRNT in the Telematics Control Unit \(TCU\): • 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 the TCU. Replacing the TCU will not resolve the concern. 2. Send an email to NTB21\-037@Nissan\-Usa.com. IMPORTANT: The purpose of ACTION \(above\) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair.
- [NTB21\-115A](/bulletins/11004970.md), 2024-07-19, Service bulletin: FORWARD COLLISION AVOIDANCE: WARNINGS; ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING. FALSE ACTIVATION OF AEB OR FCW This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- [NTB21\-106B](/bulletins/11004969.md), 2024-07-19, Service bulletin: ELECTRICAL SYSTEM. DTC C1A17\-49 OR C2580\-49 STORED IN LASER/RADAR This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- [NTB20\-074B](/bulletins/11004967.md), 2024-07-19, Service bulletin: ELECTRICAL SYSTEM. BCM SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- [NTB20\-073C](/bulletins/11004966.md), 2024-07-19, Service bulletin: ELECTRICAL SYSTEM. INTELLIGENT KEY UNIT SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
- [NTB20\-055A](/bulletins/11004965.md), 2024-07-19, Service bulletin: ELECTRICAL SYSTEM. A/T SHIFT LOCK AND REMOTE ENGINE START INOPERATIVE WITH NEW BCM SERVICE PART This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.

JSON: [/v1/bulletins/10219013](/v1/bulletins/10219013)

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