Classification:

Reference:

Date:

AN19-045E

ITB19-029E

August 15, 2024

TELEMATICS (IVC) SERVICE INFORMATION
This bulletin has been amended. See AMENDMENT HISTORY on the last page.
Discard all previous versions of this bulletin.

APPLIED VEHICLES:

APPLIED SYSTEMS:

2020-2024 Q50 (V37)
2020-2022 Q60 (CV37)
2020-2024 QX50 (J55)
2022-2024 QX55 (FJ55)
2022-2024 QX60 (L51)
2020-2024 QX80 (Z62)
Vehicles equipped with factory telematics system

HINT:


If the client experiences Wi-Fi hotspot related concerns only, DO NOT replace the TCU. Have the
client contact the AT&T Support line at 1 (888) 719-7242.



See ITB12-011 for models built before those listed above.

SERVICE INFORMATION
The APPLIED VEHICLES are equipped with a wireless communication device called a Telematics
Communication Unit (TCU). The TCU communicates with the Infiniti Data Center to provide various security
and convenience services.
This bulletin contains important service procedures that must be performed properly in order to set-up and
maintain the telematics system for the APPLIED VEHICLES.


An Order of Completion table has been provided on the next page that lists the steps required to
successfully configure a TCU after it has been replaced.



A CHECK-OFF SHEET has been provided on page 16. Print and check off steps as they are
completed. Staple the completed CHECK-OFF SHEET to the repair order.

Infiniti 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 Infiniti retailer to determine if this
applies to your vehicle.
1/18

TABLE OF CONTENTS:


REQUIRED ACTIONS …………………...…………………………………………… page 2



TCU REPLACEMENT ………………………………………………….……………. page 3



CHECK-OFF SHEET …………………………………………………….……….…. page 16



Manually Enter VIN Data (if needed)……………………………………..………. page 17

REQUIRED ACTIONS

IMPORTANT: After TCU replacement (steps 1-14):


If all of the steps below are not completed, telematics services will not operate properly.



Follow all of the steps in this bulletin and use the CHECK-OFF SHEET provided at the end of this
bulletin (page 16).



If the TCU is replaced and the steps were not followed, the warranty claim will be denied.

1st

2nd

3rd

Configure TCU

Write VIN

Register Intelligent Keys

ORDER OF COMPLETION





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

ITB19-029E

TCU REPLACEMENT
HINT: Each TCU is registered to a specific Vehicle Identification Number (VIN). TCUs cannot be “swapped”
between vehicles. Once a TCU is registered to a vehicle, the TCU cannot be used in another vehicle.
IMPORTANT:


During this procedure, Intelligent Key Registration must be performed. You MUST have ALL client
keys collected.



The new/replacement TCU must come from Nissan North America parts supply.



TCU configuration is required after replacement. Refer to step 15 on page 6.

Configuration must be completed prior to performing the Write the VIN to the TCU procedure. If performed
prior to configuration, the TCU may not function properly and might need replacement. The warranty claim will
be denied if this is not followed correctly.


The Write the VIN to the TCU procedure must be performed after the new/replacement TCU is
installed in the vehicle.

Perform the following before saving the VIN data and configuration to prevent damage to the TCU.


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 or VI
during reprogramming, the reprogramming may be interrupted.



Turn OFF all vehicle electrical loads.



Turn ON the hazard warning lights.



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 13.5 V.

Save VIN Data from Original TCU
1.

Set the parking brake.

2.

Connect the VI to the vehicle.

3.

Turn the ignition ON.

4.

Launch C-III plus on the CONSULT PC.

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ITB19-029E

5.

Select Diagnosis (One System).

Figure 1
6.

Select IVC.

Figure 2
7.

Select Work Support.
IVC

Figure 3
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ITB19-029E

8. Select SAVE VIN DATA.

IVC

9. Select Start.

Figure 4
10. Select Start.

IVC

HINT: If the VIN data cannot be
saved, skip to step 12 on page 6.
(You will be instructed to manually
enter the VIN at step 26.)

Figure 5
11. Select End.

IVC

Figure 6
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ITB19-029E

Remove the Original TCU
12.

Remove the TCU from the vehicle.


Refer to the ESM: DRIVER INFORMATION & MULTIMEDIA > AUDIO VISUAL & NAVIGATION
SYSTEM > REMOVAL AND INSTALLATION > TCU

Install the New TCU
13.

Write down the part number listed on the
new/replacement TCU (Figure 7).


14.

The TCU part number will be needed
later in this bulletin.

XXXXX

Install the new/replacement TCU into the
vehicle.


XXXXXXXXXXXXXXXXXXXXXXXXXXX

Refer to the ESM: DRIVER
INFORMATION & MULTIMEDIA > AUDIO
VISUAL & NAVIGATION SYSTEM >
REMOVAL AND INSTALLATION > TCU

XXXXXXXXXXXXXXX
XXXXXXXXXXXXXXX

Figure 7

Configure the TCU
15.

Select Re/programming, Configuration.
HINT: C-III plus screens for steps 16-18 are
not shown.

16.

Read the precautions on C-III plus screen, and
then select Next.

17.

Select the model and model year.

18.

Select Select, and then select Confirm.

Figure 8

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ITB19-029E

19.

Select IVC.

Figure 9

20.

Select After ECU Replacement under
VEHICLE CONFIGURATION.

Figure 10
21.

Select Manual selection.

Figure 11

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ITB19-029E

22.

Use the chart below to select the applicable Type ID.
VEHICLE
2020 Q50

SYSTEM
All

TYPE ID
28277-6HM1A

2021 Q50

All

28277-6HM1B

2022-2024 Q50

All

28277-6HN0B

2020 Q60

All

28277-5CR1A

2021 Q60

All

28277-5DV2C

2022 Q60

All

28277-5DV1C

2020-2021 QX50

All

28277-5NY0B

With Remote Engine Start

28277-9CM0A

Without Remote Engine Start

28277-9CM1A

With Remote Engine Start

28277-5VG0A

Without Remote Engine Start

28277-5VG4A

2023-2024 QX55

With Remote Engine Start

28277-5VG0A

2022-2024 QX60

All

282A2-6SA1B

2020 QX80

All

28277-6JE1A

2021 QX80

All

28277-6JR1A