To identify if the vehicle has a 2G or a 3G TCU, complete the following steps on the head
unit. If the TCU ID begins with something other than 202**, it is a 3G TCU and does not
require an update.
1.
2.
3.
4.
5.
6.

Press the hard button labeled Setting/Info.
Press the “Others” soft button on the center display screen.
Press the “Infiniti Connection” soft button.
Press “Unit ID information”.
If TCUID starts with “ 2021-1” it is a 3G device.
If TCUID starts with “ 2021-0” it is a 2G device.
PC451, PC452, PC454 | Revision 2

For the Q50:
To identify if the vehicle has a 2G or a 3G TCU, complete the following steps on the head
unit:
1. Press the soft (on-screen) button labeled Setting.
2. Press the “>” soft button on the center display screen.
3. Press the “In-Touch Services” soft button on the center display screen.
4. Press “Unit ID information”.
5. If TCUID starts with “ 2021-1” it is a 3G device
6. If TCUID starts with “ 2021-0” it is a 2G device
Note: As indicated above, TCU IDs that begin with something other than 202** are 3G TCUs
and do not require an update.
Q.

What if the 2G or 3G TCU part is missing the IMEI (International Mobile Equipment Identity)
number that is used to identify the TCU?

A.

The IMEI number can be found on the label adhered to the TCU part. If this label is missing or
is not legible, you can use the SIM ID/ICCID instead. The SIM ID/ICCID is located on the
head unit “Unit ID” screen, you can locate this screen by following the steps in the question
above. You will need to locate this number prior to calling the SiriusXM agent to deactivate
the 2G TCU and activate the 3G TCU.
Retailers will also need to have the model, model year, sales country (i.e. USA), marketing
color name of the vehicle and VIN available.

Q.

Is there a matrix for which vehicles are equipped with TCUs?

A.
Model

TCU Type by Model Year
2013

2014

2015

2016

2017

Q50

N/A

2G

2G

3G

3G

Q60

N/A

N/A

N/A

N/A

3G

M/Q70

2G

2G

2G

2G/3G

3G

QX30

N/A

N/A

N/A

N/A

3G

JX35/QX60

2G

2G

2G

2G/3G

3G

QX56/QX80

2G

2G

2G

2G/3G

3G

Q.

Who can I call with Telematics system specific questions?

A.

Contact the Infiniti Connection / Infiniti InTouch Services call center @ 855-444-7244. The
call center is operational between 8AM-12AM EST Monday through Saturday.

Q.

Can the 283B0-3JA6A part number be used on all Infiniti models?

A.

No. The 283B0-3JA6A part number can only be used on:
 2013 Infiniti M37/M56, JX35 and QX56
 2014-2016 Infiniti Q70, QX60 and QX80
PC451, PC452, PC454 | Revision 2

Q.

Which part should be used on Q50 models?

A.

The 283B0-3JA7A part number can only be used.

Q.

May a retailer offer retailer paid goodwill to cover the cost of a client’s co-pay for this
upgrade?

A.

The retailer is responsible for collecting the copay from an owner electing to upgrade to a 3G
compatible TCU and may choose to not collect co-pays as service to their clients. Infiniti will
debit a retailers non-vehicle account for each claim submitted when a co-pay applies.

Q.

Will Infiniti cover an owner’s co-pay using factory goodwill?

A.

No. Factory goodwill will not cover a co-pay for owner’s electing to upgrade to a 3G
compatible TCU.

Login instructions for the Infiniti Owner portal & installation
instructions follow.





M37, M56, & Q70 – pages 11 – 22
JX35 & QX60 – pages 23 – 48
QX56 & QX80 – pages 49 – 61
Q50 – pages 62 - 81

PC451, PC452, PC454 | Revision 2

Infiniti Owner Portal Login and Infiniti Connection Subscription Confirmation
Instructions:
Owners must follow these instructions to confirm their participation in the complimentary trial for
Infiniti Connection Plus telematics service.
1.

Log onto the Infiniti Owner Portal, if not already enrolled, the client will need to create an
account and add their vehicle to their personal garage, then click on the Infiniti Connection
button.

2. The client will be directed to the Infiniti Connection web portal where they should click the
“Enroll Now” button.
3. The primary subscriber tab will open and be pre-populated if the client was previously enrolled
in Infiniti Connection, otherwise, the client will need to enter their information and click “Next”.
4. The Package Selection page will appear where the complimentary 12-month Infiniti
Connection Plus package information will be pre-populated. No credit card is required to
continue, but the client may elect to automatically renew after the complimentary subscription
by providing payment information, then click “Next”.
5. The client will be presented with their selection summary and asked to confirm the Terms &
Conditions of participation. This will complete the confirmation and services will be active.
6. If the client has not already done so, assist the client in downloading the Infiniti Connection
companion app from either the App Store or Google Play.
7.

For assistance with this process, you and your clients can contact Infiniti Owner Services at 1855-444-7244.

PC451, PC452, PC454 | Revision 2

M37, M56, & Q70 Telematics Control Unit Replacement

IMPORTANT: Those steps in RED below, under Campaign Overview, MUST be performed in the
order listed for the new TCU to operate correctly.
Campaign Overview:

1. Turn OFF the original TCU using CONSULT-III plus (C-III plus) (page 2).

2. Save the VIN DATA using C-III plus (page 7).

3. Remove the original TCU from the vehicle (page 8).

4. Deactivate (unregister) the original TCU by calling INFINITI CONNECTION™ Call Center (page 9).

5. Activate (register) the replacement TCU by calling INFINITI CONNECTION™ Call Center (page 9).

6. Install the replacement TCU in the vehicle (page 10).

7. Turn ON the replacement TCU using C-III plus (page 10).

8. Write the VIN DATA using C-III plus (page 10).

1/12

SERVICE PROCEDURE

Turn OFF the TCU
1. Connect the C-III plus VI to the vehicle.
2. Set the parking brake.
3. Turn the Ignition ON, but do not start the vehicle.
4. Launch C-III plus on the CONSULT PC.
5. Select Diagnosis (One System).

Step
5

Figure 1

2/12

6. Select TELEMATICS on page 2 of the “All systems” list.

Step
6

Figure 2

7. Select Work support.

Step
7

Figure 3

3/12

8. Select TCU ACTIVATE SETTING.
9. Select Start.

Step
8

Step
9

Figure 4

10. Select Start.

Step
10

Figure 5

4/12

11. Select Off to turn OFF the TCU.
12. Select End.

Step
11

Step
12

Figure 6

13. Select Start.

Step
13

Figure 7

5/12

14. Select Start.

Step
14

Figure 8

15. Confirm “Off” is displayed in the Current status field.

Step
15

Figure 9

6/12

Save VIN Data
1. Select SAVE VIN DATA.
2. Select Start.

Step
1

Step
2

Figure 10
3. Select Start.

Step
3

Figure 11

7/12

4. Select End.

Step
4

Figure 12
Remove the TCU from the Vehicle.
1. Remove the instrument lower cover.
a. Pull downward and disengage fixing pawl and
metal clips.
b. Pull back instrument lower cover.
c. Disconnect foot lamp RH harness connector
and TCU harness connector.

Figure 13
2. Remove the mounting screw and disconnect the
connector, and then remove them together with
the bracket from instrument lower cover.
3. Remove the bracket mounting screw and remove
the bracket from TCU.

Figure 14
8/12

Deactivate the Old TCU and then Activate the new TCU
IMPORTANT: Steps 1 and 2 below must be performed AFTER the original TCU is removed from the vehicle
and BEFORE the replacement TCU is installed.
1. Collect and have ready the following information:
 VIN.
 International Mobile Equipment Identity Number (IMEI) of the original TCU. This
number is located on the TCU.
 IMEI Number of the replacement TCU. This number is located on the TCU.
 Serial Number of the replacement TCU. This number is located on the TCU.

LABEL ON TCU

Figure 15
2. Call the INFINITI CONNECTION™ Call Center at 1-800-334-7858, press “1” and listen for additional applicable
INFINITI retailer prompts to replace a TCU. (Hours of operation are listed at the bottom of the page.)
NOTE: The phone number shown above is for TCU activation and deactivation ONLY. The Support Center
agent is unable to assist with matters unrelated to TCU activation and deactivation.
During this call:
 You will be asked for your name, dealership name, and all of the information collected in step 1.
 The Support Center agent will deactivate the original TCU and activate the replacement TCU.
IMPORTANT: Step 2 MUST be performed to activate the replacement TCU. If it is not performed the TCU will not
be able to communicate with the Infiniti Connection Global Data Center.
Infiniti Connection Call Center – Hours of Operation (Central Time Zone)
Monday – Friday: 7AM – 10PM

Saturday: 8AM – 5PM

Special Holiday Hours:
Closed Thanksgiving, Christmas, and New Years Day
Christmas Eve: 7AM – 7PM
New Years Eve: 7AM – 7PM
9/12

Install Replacement TCU


Perform steps 1-3 of Remove the TCU from the Vehicle procedure on page 8, in reverse order, to install.

Turn TCU ON


Perform steps 1-15 of Turn OFF the TCU procedure, starting on page 2, to turn the TCU ON and then
confirm the Current status field shows “On”.

Write VIN Data
1. Select WRITE VIN (SAVED DATA).
2. Select Start.

Step
1

Step
2

Figure 16

10/12

3. Select Start.

Step
3

Figure 17

4. Select End.

Step
4

Figure 18
IMPORTANT:
 Wait at least 2 minutes after the ignition is turned ON before checking for DTCs. If DTCs are checked prior
to this a U1000 may be stored.
 After writing VIN to new TCU, confirm SOS light on overhead console is illuminated solid.
11/12

PARTS INFORMATION
Description
Telematics Control Unit

PART NUMBER
283B0-3JA5A

Quantity
1

CLAIMS INFORMATION
Submit a Campaign (CM) line claim using the following claims coding:
CAMPAIGN (“CM”) ID
DESCRIPTION
Replace Telematics Control Unit
PC451
($299 Co-Pay)

OP CODE

FRT

PC4511