saved, proceed to step 12 on page 7. You
will be instructed to manually enter the VIN
at step 16.

Figure 5
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11. Select End.

Step
11

Figure 6
Remove the Original TCU
12. Remove the TCU from the vehicle. Refer to the ESM for removal information.


For PDF ESM: section AV–Audio, Visual & Navigation System



For Web ESM: DRIVER INFORMATION & MULTIMEDIA > AUDIO VISUAL & NAVIGATION
SYSTEM > REMOVAL AND INSTALLATION > TCU

Step 13 must be performed AFTER the original TCU is removed from the vehicle and BEFORE the
replacement TCU is installed.

LABEL ON TCU

13. Write down 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.
Figure 7

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Install the New TCU
14. Install the new / replacement TCU into the vehicle. Refer to the ESM for installation information.


For PDF ESM: section AV–Audio, Visual & Navigation System



For Web ESM: DRIVER INFORMATION & MULTIMEDIA > AUDIO VISUAL & NAVIGATION
SYSTEM > REMOVAL AND INSTALLATION > TCU

Write VIN to TCU
15. Connect C-III plus and navigate to Telematics Work support.


Refer to steps 1-7 on pages 4-6.

16. Select WRITE VIN (SAVED DATA).
NOTE: If VIN DATA could not be saved in
step 10, proceed to Manually Enter VIN
Data on page 22.

Step
16
Step
17

17. Select Start.

Figure 8

18. Select Start.
Step
18

Figure 9
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19. Select End.

Step
19

Figure 10
20. Is the vehicle in the table below?


YES: Proceed to step 21.



NO: Proceed to step 31 on page 12.

*

2016-2018 Q50 *

2017-2018 Q60

2016-2018 Q50 Hybrid *

2017-2019 QX30

2018-2019 Q70
2018 Q70 Hybrid

2019 QX50
2018-2019 QX80

For 2018 vehicles, TCU Configuration is needed only if the TCU ID number begins with “2047” (see
Figure 17 on page 12).

Configure TCU
21. Select Re/programming, Configuration.
NOTE: C-III plus screens for steps 22-24
are not shown.
22. Read the precautions on C-III plus screen
and then select Next.

Step
21

23. Select the model and model year.
24. Select Select, and then select Confirm.

Figure 11
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25. Select TELEMATICS.

Step
25

Figure 12

26. Select After ECU Replacement.

Step
26

Figure 13

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27. Select Manual selection.
28. Select the applicable Type ID:
For 2016-2018 Q50 and Q50 Hybrid:
28277-1HK0A
For 2018 Q70 and Q70 Hybrid:
Step
27

28277-5UV0A
For 2019 Q70:

Figure 14
28277-6FL2A

For 2017-2018 Q60:
Step
28

28227-5CA2A
For 2017-2019 QX30:
28277-5DA2A
For 2019 QX50:
28277-6FL1B

Step
29

For 2018-2019 QX80:

Figure 15

28277-6FL1C
NOTE: If C-III plus automatically selects the
Type ID, there will be no options shown under
Type ID and Figure 15 will not display. Skip to
step 30.
29. Select Next.

Step
30

30. Select OK.

Figure 16

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Write New SIM ID Number on the Repair Order

31. Write the new SIM ID number on the repair order.
a. Navigate C-III plus to the screen shown in Figure 17.
Diagnosis (One System) > TELEMATICS > ECU Identification
b. Locate the SIM ID number and write it on the repair order as “New SIM ID”.

xxxxxxxxxxx
xxxxxxxxxxxxx
xxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxx

SIM ID
number

Figure 17

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Intelligent Key Registration (some vehicles)

32. If needed, perform Intelligent Key registration for all customer keys.


The vehicles listed in this table require Intelligent Key registration.
2016-2019 Q50
2016-2018 Q50 Hybrid
2017-2019 Q60
2019 QX50

2017-2020 QX60
2017-2018 QX60 Hybrid
2018-2019 QX80



Refer to the C-III plus operations manual for key registration instructions.



If the vehicle you are working on is not listed in the above table, key registration is not needed.

NOTE: The Remote Engine Start and Stolen Vehicle Locator features (if so equipped) will not function if
Intelligent Key registration is not completed, and DTC B130C will be stored.

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Turn ON TCU

33. Make sure the vehicle is not in shipping mode (shipping mode = extended storage switch pulled OUT).
If needed, use the following steps to confirm the vehicle is not in shipping mode:
a. Make sure the ignition is OFF.
b. Open the driver’s door and leave it open.
c. Locate the interior fuse panel and remove the cover.
d. Push the white extended storage switch IN.
e. Turn the ignition ON.
f.

Turn the ignition OFF.

g. Wait at least 2 seconds, and then turn the ignition ON.
h. Make sure the extended storage warning message is not displayed in the combination
meter/display.
34. Connect the C-III plus VI to the vehicle.
35. Set the parking brake and confirm the ignition is ON.
36. Launch C-III plus on the CONSULT PC.

37. Select Diagnosis (One System).
Step
37

Figure 18

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38. Select Telematics.

Step
38

Figure 19

39. Select Work Support.

Step
39

Figure 20

40. Select TCU ACTIVATE SETTING.

Step
40

41. Select Start.

Step
41

Figure 21
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42. Select Start.

Step
42

Figure 22

43. Select On to turn ON the TCU.

Step
43

44. Make sure Current status is On.

On

Step 44; make sure current
status is ON

45. Select END.

Step
45

Figure 23

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TCU Registration
The following items must first be completed before calling Infiniti Customer Care (SXM), or services
may not function properly:


New / replacement TCU is installed in the vehicle.



WRITE VIN (SAVED DATA) has been completed.



If needed, Manual TCU Configuration has been performed.



If needed, all customer Intelligent Keys have been registered.



The TCU is turned ON.



IMEI number for original and replacement TCU is written on the repair order.



SIM ID number for the replacement TCU is written on the repair order.

46. Call Infiniti Customer Care at 1-800-334-7858. Listen for additional applicable prompts. Hours of operation
are listed below.
During this call:


You will be asked for your name, dealership name, and all of the information collected.



The agent will unregister the original TCU and register the replacement TCU. If needed, the agent will
call back to confirm TCU registration has completed.



The vehicle may need to be moved outside if the cellular connection is not strong enough. See Check
TCU Cellular Reception on page 18.

NOTE:


The TCU will not be able to communicate with the Infiniti Data Center if step 46 is not completed.



After registration, it may take up to 48 hours for services to be functional.



TCU registration does not enroll the customer in Infiniti Connection® or Infiniti InTouch Services™.
Infiniti Customer Care (1-800-334-7858) – Hours of Operation (Central Time Zone)
Monday – Friday: 7AM – 10PM
Saturday: 8AM – 5PM
Special Holiday Hours:
Closed Thanksgiving, Christmas, and New Year’s Day
Christmas Eve: 7AM – 7PM
New Year’s Eve: 7AM – 7PM

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