0.6 hrs.

PC452

Replace Telematics Control Unit
($149 Co-Pay)

PC4521

0.6 hrs.

PC454

Replace Telematics Control Unit
(Dealer Action Unit – No Co-Pay)

PC4541

0.6 hrs.

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JX35 & QX60 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 9).

4. Deactivate (unregister) the original TCU by calling INFINITI CONNECTION™ Call Center (page 23).

5. Activate (register) the replacement TCU by calling INFINITI CONNECTION™ Call Center (page 23).

6. Install the replacement TCU into the vehicle (page 24).

7. Turn ON the replacement TCU using C-III plus (page 24).

8. Write the VIN DATA using C-III plus (page 24).

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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

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

Step
6

Figure 2

7. Select Work support.

Step
7

Figure 3

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

Step
8

Step
9

Figure 4

10. Select Start.

Step
10

Figure 5

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

Step
11

Step
12

Figure 6

13. Select Start.

Step
13

Figure 7

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14. Select Start.

Step
14

Figure 8

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

Step
15

Figure 9

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

Step
1

Step
2

Figure 10

3. Select Start.

Step
3

Figure 11

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4. Select End.

Step
4

Figure 12

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Remove the TCU from the Vehicle.

1. Remove both left and right center console upper
side finishers.

Center console
upper side finisher

NOTE: Driver side shown In Figure 13 and 14.
Passenger side similar.

Figure 13

2. Confirm that the metal clips for the left and right upper center console side finisher are in place.


If the clips were detached, remove them from the center console and reattach to the upper center
console side finishers.

Metal clips

Figure 14

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Center console
side finisher

3. Remove both center console side finishers.
NOTE: Driver side shown in Figure 15.

Figure 15

4. Confirm that the plastic clips for the left and right center console side finisher are in place.


If the clips were detached, remove them from the center console and reattach to the center console
side finishers.

Driver side
Plastic clip

Plastic clip

Passenger side
Figure 16
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Shift knob

5. Remove the shift knob:

Figure 17

Retaining clip
a. Pull shift boot collar down (Figure 18).

b. Remove retaining clip (Figure 18).
Shift boot
collar
Figure 18

Retaining clip

c. Replace retaining clip back onto shift knob
(Figure 19).

Figure 19

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6.

Remove the left and right side screws that retain the shift selector finisher.


Four on driver’s side (Figure 20).



Five on Passenger side (Figure 21).
Shift selector finisher

Driver side screws

Passenger side screws
Figure 20

Figure 21

Front console tray

7. Remove one retaining screw and then unclip the
front console tray from the center console
(Figure 22).
Retaining screw
Figure 22

8. Disconnect the harness connector from the 12 volt
power receptacle (Figure 23).


Leave harness attached to the center console.
Harness connector
Figure 23
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9. Remove the shift selector finisher:
a. Place a clean shop towel over the front of the
shift selector finisher (Figure 24).

Figure 24

b. Lift the shift selector finisher at the rear.
c. While lifting the shift selector finisher,
disconnect the four harness connectors
exposed at the rear of the center console
(Figure 25).

Harness connectors

d. Separate the shift selector finisher from the
center console.
Figure 25

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10. Remove the center console rear finisher:


Six hidden clips (Figure 26).

Center console rear
finisher
Figure 26

Center console
rear finisher

Center console lid
a. Lift center console lid.
b. Release six clips by gently pulling at the top of
the center console rear finisher toward the
rear of the vehicle.

Figure 27

c. Lay the center console rear finisher on the
vehicle floor.

d. Disconnect the two attached harnesses
connectors (Figure 28).
Center console
rear finisher

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Figure 28

11. Remove the two mounting screws at the bottom rear of the center console (Figure 29).


Driver’s side shown. Passenger side similar.

Screw

Figure 29
12. Remove one mounting screw from the driver’s side and one from the passenger side of the center console
(Figure 30)

Driver side screw

Passenger side screw
Figure 30

13. Remove the two screws to the left of the shifter.

Screws

Figure 31
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14. Disconnect the harness connectors on the
passenger side center console.


Do not unclip harnesses from center console.
Harness connector
locations (three shown).

NOTE: There may be three or four connectors
depending on the vehicle options.

Figure 32
15. Unclip the harness from the shift selector assembly (Figure 33).

Figure 33

Step
16b

16. Remove the center console (Figure 34).
a. Gently lift up,
b. and then rearward.

Step
16a
Figure 34

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17. Remove the four nuts that attach the shift selector assembly to the center console brace (Figure 35).
NOTE: Top left nut is hidden in Figure 35.
 Reassembly torque to: 7 N•m (0.7 kg-m, 62 in-lb.)
18. Unclip the two harness clips shown in Figure 34 attached to the center console brace.

Shift selector
assembly

Nuts

Harness clips

Figure 35

Harness clips

19. Unclip the three harness clips from the center
console brace shown in Figure 36.
Shift selector
assembly
Figure 36

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Shift selector
assembly

20. Lift the shift selector assembly away from the
center console brace and lay it on the driver’s side
floor (Figure 37).

Figure 37

21. Unclip the two harness connectors shown in
Figure 38 from the driver’s side of the center
console brace.

Harness clips
Figure 38

22. Unplug the two harness connectors that were
unclipped in step 21 and shown in Figure 39.

Harness
connectors

Figure 39

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Around view
monitor control unit

Top screw
(not shown)

23. Remove the around view monitor control unit from
the center console brace (Figure 40).
a. Disconnect the harness connectors from the
around view monitor control unit.

Bottom
screws

b. Remove one top screw (not shown) and two
bottom screws.

Harness
connectors
Figure 40
24. Remove the two bolts and one nut on the driver’s side of the center console brace.
 Reassembly torque to: 7 N•m (0.7 kg-m, 62 in-lb.)

Nut

Bolts

Figure 41
25. Remove the two bolts and one plastic clip on the passenger side of the center console brace.
 Reassembly torque to: 7 N•m (0.7 kg-m, 62 in-lb.)

Plastic clip

Bolts

Figure 42
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26. Lift the center console brace up at the rear and
then remove.
CAUTION: The center console brace may have
some sharp edges. Use care when removing it.

Center console
brace

Figure 43

Adapter duct
27. Push the adapter duct forward to detach from the
rear blower unit assembly and then remove.

Figure 44

20/26