NTB21-031

Classification:
EL21-009
Reference:
Date:
NTB21-031
May 18, 2021
BCM REPROGRAM TO DISABLE FOG LAMP OPERATION
DURING HIGH BEAM OPERATION
APPLIED VEHICLES:
2020 Sentra (B18) – SR
IF YOU CONFIRM
The vehicle is in Pennsylvania and the fog lamps remain ON during high beam operation.
ACTION
Reprogram the BCM.
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.
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
Reprogram the BCM
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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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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6.
Select Automatic Selection(VIN).
Figure 3
7.
Allow the CONSULT to perform automatic VIN selection.
Figure 4
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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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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 Reprogramming.
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.
Figure 9
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NTB21-031
13.
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 10
14.
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 11
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15.
Read the Current Part Number and Part Number After Repro/programming. They
should be different (Figure 12).
XXXXXXX
XXXXXXX
XXXXXXXXXXXX
Figure 12

NOTE: If the screen in Figure 13 is shown, the Service Procedure is complete.
Skip to step 40 on page 25.
Figure 13
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NTB21-031
16.
Select Next.
XXXXXXX
XXXXXXX
XXXXXXXXXXXX
Figure 14
17.
Confirm the battery charger is ON and the battery voltage is between 12V-15.5V, and
then select Next.
Figure 15
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NTB21-031
18.
Confirm the battery voltage Judgment is OK, and then select Start.
Figure 16
19.
Select USA/CANADA Dealers from the drop down menu, and then select OK.
Figure 17
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20.
Login using your NNAnet credentials.
Figure 18
21.
Allow CONSULT to reprogram the BCM.
Figure 19
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22.
Toward the end of the reprogram, the CONSULT will show an Error Code
“Reprogramming Ignition off Error” and the vehicle ignition will turn off.
a) Turn the ignition ON, engine OFF.
b) Select Retry.
XXXXXXX
XXXXXXX
XXXXXXXXXXXX
XXXXXXXXXXXX
Figure 20
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NTB21-031
23.
If Error Code description “Reprogramming Not Needed” is displayed after another
reattempt, this indicates the reprogramming has successfully completed. Select
Home, and then proceed to step 24 on page 16.
NOTE: If the screen in Figure 21 does not display (indicating that reprogramming did
not complete), refer to the information on the next page.
XXXXXXX
XXXXXXX
XXXXXXXXXXXX
XXXXXXXXXXXX
Figure 21
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NTB21-031
BCM Recovery:
If reprogramming does not complete and the “!?” symbol displays as shown in
Figure 22:

Check battery voltage (12.0 –
15.5V).

Ignition is ON, engine is OFF.

External Bluetooth® devices are
OFF.

All electrical loads are OFF.

Select Retry and follow the on
screen instructions.
XXXXXX
XXXXXX
XXXXXXXXXXX
XXXXXXXXXXX
NOTE: Retry may not go through on
first attempt and can be selected
more than once.
Figure 22
If reprogramming does not complete and the “X” symbol displays as shown in
Figure 23:

Do not disconnect the VI
or shut down C-III plus if
reprogramming does not complete.

Check battery voltage (12.0 –
15.5V).

XXXXXX
XXXXXX
CONSULT A/C adapter is plugged
in.

Ignition is ON, engine is OFF.

Transmission in Park.

All C-III plus / VI cables are
securely connected.

All C-III plus updates are installed.

Select Home, and then restart the
reprogram procedure from the
beginning.
XXXXXXXXXXXX
XXXXXXXXXX
Figure 23
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NTB21-031
Configure the BCM
IMPORTANT: Approximately 90 seconds after the reprogram has completed, the BCM will
enter battery saver mode and will turn the ignition off.
24.

Periodically check the vehicle to verify the ignition is still on and turn the ignition to
the ON position as needed.

This condition will no longer be present after the BCM has been configured.
Locate the vehicle’s EIM (End Item Model) code and write the code on the repair
order.
HINT: The EIM code is located on the VIN label on the driver side b-pillar.
NOTE: There are only 2 possible EIM codes for the applied vehicle.
 BDRALRZB18DUA---- BDRALRZB18DUAC----
Figure 24
25.
Repeat steps 4 - 11 on pages 3 - 6.
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26.
Select After ECU Replacement under VEHICLE CONFIGURATION.
Figure 25
27.
Select Manual selection.
Figure 26
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28.
Using the EIM code documented in step 24 on page 16, select the correct Setting
Value for each Item, and then select Next.

Refer to Table A on page 19 for the correct Setting Value.
To prevent damage to the BCM, be sure the correct BCM settings are selected for
the proper vehicle EIM code. Failure to select the correct BCM settings will require
the BCM to be replaced.
Figure 27
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NTB21-031
Table A
BCM SETTING VALUES PER EIM
SENTRA 20MY SR
BDRALRZB18DUA‐‐‐‐‐
BDRALSZB18DUAC‐‐‐‐
ITEMS
PAGE 1/4
Daytime running light
Lane camera unit
High beam assist / ALH setting
AV control unit
TCU
PAGE 2/4
Turn signal lamp variant
Remote function (flasher)
Combination switch type
Paddle shift
A/T
PAGE 3/4
Auto door lock vehicle speed setting
Vehicle security alarm
TPMS
Easy fill function
Recommended reference air pressure (rear wheel)
PAGE 4/4
Low pressure recovery threshold value
Exterior lamp setting
Vehicle speed condition for ignition ON / OFF
Door lock permission for ignition ON
Wiper linked auto lighting function
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WITH
WITH
MODE2
WITH
WITHOUT
WITH
WITH
MODE2
WITH
WITHOUT
WITH
MODE1
MODE3
WITHOUT
WITH
WITHOUT
MODE1
MODE3
WITHOUT
WITH
MODE2
WITH
WITH
WITH
MODE1
MODE2
WITH
WITH
WITH
MODE1
MODE1
MODE2
MODE2
WITH
WITH
MODE1
MODE2
MODE2
WITH
WITH
NTB21-031
29.
Verify the ignition is ON and the engine is OFF, and then select OK to write the
configuration.
Figure 28
30.
Allow the configuration to write to the BCM.
Figure 29
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31.
Select End.
Figure 30
Register TPMS Sensors
32.
Register the TPMS sensors.

For TPMS sensor ID registration, refer to the Electronic Service Manual (ESM)
section: SUSPENSION > ROAD WHEELS & TIRES > BASIC INSPECTION > ID
REGISTRATION PROCEDURE.
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Erase DTCs
33.
Select Diagnosis (All Systems).
Figure 31
34.
Select Automatic Selection(VIN).
Figure 32
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35.
Allow the CONSULT to perform automatic VIN selection.
Figure 33
36.
Confirm the VIN or Chassis # is correct, and then select Confirm.
XXXXXXXXXXXXXXX
Figure 34
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37.
Select ERASE.
Figure 35
38.
Select Execute.
Figure 36
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39.
Select Close.
Figure 37
40.
Close the C-III plus application.
41.
Remove the VI from the vehicle.
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CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the following claims coding:
(1)
DESCRIPTION
PFP
OP CODE
SYM
DIA
FRT
Perform Part Number Check
(1)
RX9XAA
ZE
32
0.3 hr
Reference the electronic parts catalog and use the Body Control Module (284B1-*****)
as the Primary Failed Part (PFP).
OR
(1)
DESCRIPTION
PFP
OP CODE
SYM
DIA
FRT
Reprogram ECM
(1)
RX9WAA
ZE
32
0.7 hr
Reference the electronic parts catalog and use the Body Control Module (284B1-*****)
as the Primary Failed Part (PFP).
AMENDMENT HISTORY
PUBLISHED DATE REFERENCE
May 18, 2021
NTB21-031
DESCRIPTION
Original bulletin published
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NTB21-031