Classification:

Reference:

EL20-044A

Date:

NTB20-096A

March 24, 2021

VOLUNTARY SERVICE CAMPAIGN
BCM REPROGRAM TO DISABLE FOG LAMP OPERATION
DURING HIGH BEAM OPERATION
This bulletin has been amended. See AMENDMENT HISTORY on the last page.
Discard all previous versions of this bulletin.

CAMPAIGN ID #:
APPLIED VEHICLES:

P0A34
2020 Sentra (B18) – SR

Check Service COMM or Dealer Business Systems (DBS)
National Service History to confirm campaign eligibility.

INTRODUCTION
Nissan is conducting this voluntary service campaign, on certain specific model year 2020
Sentra SR models, to reprogram the BCM in order to disable fog lamp operation when the
high beams are in use. This service will be performed at no charge to the customer for
parts or labor.

IDENTIFICATION NUMBER
Nissan has assigned identification number P0A34 to this campaign. This number must
appear on all communication and documentation of any nature dealing with this campaign.
DEALER RESPONSIBILITY
Dealers are to repair vehicles falling within range of this campaign that enter the service
department. This includes vehicles purchased from private parties, vehicles presented by
transient (tourists) owners, and vehicles in a dealer’s inventory.

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.

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SERVICE PROCEDURE

Document the BCM Configuration Settings
IMPORTANT: Before starting, make sure:


ASIST on the CONSULT PC has been synchronized (updated) to the current date.



All C-III plus software updates (if any) have been installed.



During the reprogramming process, you will receive some errors. These errors are
expected. Please follow all of the steps in this procedure to successfully complete
the reprogramming process.



Connect a battery maintainer or smart charger set to reflash mode or a similar
setting. If the vehicle battery voltage drops below 12.0V or rises above 15.5V
during reprogramming, the BCM may be damaged.



Be sure to turn OFF all vehicle electrical loads.
If a vehicle electrical load remains ON, the BCM may be damaged.



Be sure to connect the AC Adapter.
If the CONSULT PC battery voltage drops during reprogramming, the process
will be interrupted and the BCM may be damaged.



Turn OFF all external Bluetooth® devices (e.g., cell phones, printers, etc.)
within range of the CONSULT PC and the VI. If Bluetooth® signal waves are
within range of the CONSULT PC or VI during reprogramming, reprogramming
may be interrupted and the BCM may be damaged.

1.

Connect the VI to the vehicle.

2.

Start C-III plus.

3.

Wait for the VI to be recognized.


The serial number will display when the VI is recognized.

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NTB20-096A

4.

Select Re/programming, Configuration.

The VI is
recognized

Figure 1

5.

Check the box to confirm the precaution instructions have been read, and then select
Next.
NOTE: Use the arrows (if needed) to view and read all the precautions.

Figure 2
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NTB20-096A

6.

Select Automatic Selection(VIN).

Figure 3

7.

Allow the CONSULT to perform automatic VIN selection.

Figure 4

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NTB20-096A

8.

Confirm the VIN or Chassis # is correct, and then select Confirm.

XXXXXXXXXXXXXXX

Figure 5

9.

Allow the System call to be performed.

Figure 6

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NTB20-096A

10.

Confirm the VIN is correct for the vehicle, and then select Confirm.

XXXXXXXXXXXXXXXXXX

Figure 7

11.

Select BCM.

Figure 8

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12.

Select Before ECU Replacement under VEHICLE CONFIGURATION.

Figure 9

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NTB20-096A

13.

Scroll through each of the four pages of configuration items and write down each item
and setting value.


If a printer is connected to the CONSULT PC, you may select Print.

IMPORTANT: Document or print all configuration settings as these settings will be
used in step 30 and the SAVE function for this reprogram will NOT work.

Figure 10
14.

X

Once all the setting values have been documented, select Back in the upper left hand
portion of the screen.

Figure 11
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X
NTB20-096A

Reprogram the BCM
IMPORTANT: During the reprogramming process, you will receive some errors.
These errors are expected. Please follow all of the steps in this procedure to
successfully complete the reprogramming process.
15.

Select Reprogramming.

Figure 12

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NTB20-096A

16.

Find the BCM Part Number and write it on the repair order, and then select Save.
NOTE: This is the current Part Number (P/N).

XXXXXXXXXXXX

XXXXXXX

XXXXXXXXXXXX
XXXXXXXXXXXX

Figure 13
17.

Check the box to confirm the precaution instructions have been read, and then select
Next.
NOTE: Use the arrows (if needed) to view and read all the precautions.

Figure 14
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NTB20-096A

18.

Read the Current Part Number and Part Number After Repro/programming. They
should be different (Figure 15).

XXXXXXX
XXXXXXX

XXXXXXXXXXXX

Figure 15


NOTE: If the screen in Figure 16 is shown, the Service Procedure is complete.
Skip to step 42 on page 25.

Figure 16

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NTB20-096A

19.

Select Next.

XXXXXXX
XXXXXXX

XXXXXXXXXXXX

Figure 17

20.

Confirm the battery charger is ON and the battery voltage is between 12V-15.5V, and
then select Next.

Figure 18

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NTB20-096A

21.

Confirm the battery voltage Judgment is OK, and then select Start.

Figure 19

22.

Select USA/CANADA Dealers from the drop down menu, and then select OK.

Figure 20

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NTB20-096A

23.

Login using your NNAnet credentials.

Figure 21

24.

Allow CONSULT to reprogram the BCM.

Figure 22