NTB20-061a

Classification:
Reference:
DA20-019a
Date:
NTB20-061a
February 2, 2021
TRAFFIC SIGN RECOGNITION OR LANE DEPARTURE
WARNING MALFUNCTION DISPLAYED AND MIL ON
WITH DTC C2503-54 AND/OR C1F6B-54 STORED
This bulletin has been amended. See AMENDMENT HISTORY on the last page.
Please discard previous versions of this bulletin.
APPLIED VEHICLES:
APPLIED DATE:
2020 Sentra (B18)
Built before May 29, 2020
IF YOU CONFIRM
The customer states that one of the following warnings is displayed on the vehicle
information display along with the AEB Warning Light:

Traffic Sign Recognition Malfunction
Displayed

Lane Departure Warning Malfunction
Displayed
And

The MIL is ON with DTC C2503-54
(CAMERA AIMING INCMP) and/or
C1F6B-54 (CAMERA UNIT MALF)
stored.
NOTE: If DTC C2500-49 and/or C1F6B-49
is stored, this TSB does not apply.
Figure 1
ACTION

If the vehicle was built on or before 1/31/2020, remove material from the lane
camera and then reprogram the lane camera control unit.

If the vehicle was built after 1/31/2020 but before 5/29/2020, skip to step 6 and
reprogram only the lane camera control unit.
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.
1/12
SERVICE PROCEDURE
If the vehicle was built after 1/31/2020 but before 5/29/2020, skip to step 6 and only
perform Lane Camera Reprogramming.
Remove Material from Lane Camera (front camera unit)
1.
Remove the front camera unit above the rearview mirror.

2.
For the procedure to remove the front camera unit, refer to the Electronic Service
Manual (ESM): Section CRUISE CONTROL & DRIVER ASSISTANCE > DRIVER
ASSISTANCE SYSTEM > DRIVER ASSISTANCE SYSTEM > REMOVAL AND
INSTALLATION > FRONT CAMERA UNIT.
Measure the feet of the front camera
unit with an appropriate tool and write
the measurements on the repair order.

Measure
here,
between the
red lines
This will provide a starting
measurement to compare to as
material is removed.
NOTE: If the bottom of the feet have
already had material removed, skip to
step 6 to reprogram the lane camera.
Front camera
unit feet
Figure 2
3.
Remove 0.3 mm (0.012 inches) of
material off of the bottom of both feet.

Carefully remove material with a
suitable tool such as a file.

A dial caliper, or equivalent
measuring instrument, can be
used.
Before
NOTE: Only one foot is shown in
Figure 3.
4.
0.3 mm (0.012 inches) of
material removed from both feet
Figure 3
Reinstall the front camera unit.

After
Refer to the ESM: Section CRUISE CONTROL & DRIVER ASSISTANCE >
DRIVER ASSISTANCE SYSTEM > DRIVER ASSISTANCE SYSTEM >
REMOVAL AND INSTALLATION > FRONT CAMERA UNIT.
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NTB20-061a
5.
After reinstalling the front camera unit, perform “ADDITIONAL SERVICE WHEN
REPLACING FRONT CAMERA UNIT".

Refer to the ESM: Section CRUISE CONTROL & DRIVER ASSISTANCE >
DRIVER ASSISTANCE SYSTEM > DRIVER ASSISTANCE SYSTEM > BASIC
INSPECTION > ADDITIONAL SERVICE WHEN REPLACING FRONT CAMERA
UNIT.
Lane Camera Control Unit Reprogramming
6.
Using C-III plus, confirm the current lane camera control unit (CU) part number and
write it on the repair order.

If it matches one of the part numbers in Table A below, proceed to step 7 to
reprogram the lane camera.

If it does not match one of the part numbers in Table A, lane camera
reprogramming is not needed. If needed, refer to the ESM for additional diagnostic
information.
Table A
MODEL
2020 Sentra
CURRENT CU PART NUMBER: 284G3-XXXXX
6LA0A, 6LA1A
Perform the following before starting the reprogramming procedure to prevent
damage to the control unit:
7.

Connect the AC Adapter to the CONSULT PC.

Connect the CONSULT PC to the internet via Wi-Fi or a network cable.

Ensure ASIST on the CONSULT PC has been synchronized (updated) to the current
date and all C-III plus software updates (if any) have been installed.

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 and plus VI during reprogramming, the reprogramming may be
interrupted.

Turn OFF all vehicle electrical loads.

Connect a battery maintainer or smart charger, set to reflash mode or a similar
setting, to ensure the battery voltage stays between 12.0 V and 15.5 V.
Turn the ignition ON, if not already.
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NTB20-061a
8.
From the ASIST home screen, select Re/programming, Configuration.
Plus VI is
recognized
Figure 4
9.
Read the Caution, and then click on the “Confirmed instructions” check box.
10.
Select Next.
Figure 5
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NTB20-061a
11.
Verify that the VIN is correct, and then select Confirm.
xxxxxxxxxxxxxxxxx
xxxx MY
Figure 6
12.
Select Confirm.
xxxxxxxxxxxxxxxxx
Figure 7
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NTB20-061a
13.
Select LANE CAMERA.
Figure 8
14.
Select Reprogramming.
Figure 9
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NTB20-061a
15.
Select Save.
XXXXXX
LANE CAMERA
XXXXX-XXXXX
XXXXXX
XXXXXXXXXXXXXXX
Figure 10
16.
Read the Precautions, and then click on the Confirmed Instructions box.
17.
Select Next.
Figure 11
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NTB20-061a
18.
Confirm that the battery voltage is OK, and then select Next.
Figure 12
19.
Select Start.
Figure 13
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NTB20-061a
20.
Select USA/CANADA Dealers.
21.
Select OK.
Figure 14
NOTE:
 The above screen may not display if the CONSULT PC has remained ON since the
last reprogramming.
 In the next steps, the reprogramming process will begin when Submit is selected.
22.
Enter your Username and Password.
 The CONSULT PC must be connected to the internet via cable or Wi-Fi.
 If you do not know your Username and Password, contact your service manager.
23.
Select Submit.
Figure 15
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NTB20-061a
24.
When the screen below is displayed, select Next.
Figure 16
25.
Turn the ignition OFF.
Figure 17
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NTB20-061a
26.
Turn the ignition ON and select Next.
Figure 18
27.
After completing Erase ALL DTCs, print a copy of the C-III plus screen showing the
before and after part numbers of the control unit and attach it to the repair order.
-XXXXX
XXXXXX
XXXXXX
XXXXXXXXXXXXXXX
Figure 19
28.
Select Confirm to complete reprogramming.
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NTB20-061a
CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the following claims coding:
DESCRIPTION
PFP
OP CODE
SYM
DIA
FRT
Reprogram Lane Camera Only
(1)
RX9FAA
ZE
32
0.5
DESCRIPTION
Inspect Lane Camera Feet, Aim and
Reprogram Lane Camera
PFP
OP CODE
SYM
DIA
FRT
(1)
RX9GAA
ZE
32
0.9
DESCRIPTION
Inspect Lane Camera Feet, Trim, Aim and
Reprogram Lane Camera
PFP
OP CODE
SYM
DIA
FRT
(1)
RX9HAA
ZE
32
1.0
OR
OR
(1)
Reference the electronic parts catalog and use the Land Departure Camera
(284G3-*****) as the Primary Failed Part (PFP).
AMENDMENT HISTORY
PUBLISHED DATE REFERENCE
DESCRIPTION
August 31, 2020
NTB20-061
Original bulletin published
February 2, 2021
NTB20-061a
Classification number updated
12/12
NTB20-061a